Herman; Peter K.
Patent Applications and Registrations
Patent applications and USPTO patent grants for Herman; Peter K..The latest application filed is for "filter element with self-contained electrostatic buildup protection".
Company Profile
28.105.114
- Herman; Peter K. - Stoughton WI
- - Stoughton WI US
- Herman; Peter K. - Cookeville TN
- Herman; Peter K. - Cookevillke TN
Patent Activity
| Patent | Date |
|---|---|
| Axial flow centrifugal separator Grant 11,446,598 - Holm , et al. September 20, 2 | 2022-09-20 |
| Filter element with a spacer Grant 11,383,184 - Currier , et al. July 12, 2 | 2022-07-12 |
| Filter Element With Self-contained Electrostatic Buildup Protection App 20220203269 - Verdegan; Barry Mark ; et al. | 2022-06-30 |
| Filter Assembly With A Diffuser App 20220161178 - Herman; Peter K. | 2022-05-26 |
| Duckbill Aerosol Separator With Always Open Refinement App 20220154608 - Herman; Peter K. ; et al. | 2022-05-19 |
| Water drain mechanism for filter assemblies Grant 11,333,116 - Bhat , et al. May 17, 2 | 2022-05-17 |
| Auto drain system for vacuum and pressure side fuel water separator Grant 11,318,403 - Wankhede , et al. May 3, 2 | 2022-05-03 |
| Filter Port Seal App 20220111315 - Kadam; Pravin S. ; et al. | 2022-04-14 |
| Split Flow Axial Crankcase Separator App 20220088523 - Parikh; Chirag D. ; et al. | 2022-03-24 |
| Filtration Element With Gradient Seal Interface App 20220072454 - Kadam; Pravin Shantinath ; et al. | 2022-03-10 |
| Tangential air cleaner with coiled filter cartridge Grant 11,260,404 - Bannister , et al. March 1, 2 | 2022-03-01 |
| Filter assembly with a diffuser Grant 11,235,273 - Herman February 1, 2 | 2022-02-01 |
| Fuel filter cartridges with automated air-bleeding internal features Grant 11,213,775 - Bowerman , et al. January 4, 2 | 2022-01-04 |
| System and method for improving mass air flow signal quality Grant 11,207,631 - Li , et al. December 28, 2 | 2021-12-28 |
| Filter port seal Grant 11,207,620 - Kadam , et al. December 28, 2 | 2021-12-28 |
| Bi-directional no filter no run pin Grant 11,198,076 - Kadam , et al. December 14, 2 | 2021-12-14 |
| Centrifugal separator with improved volumetric surface area packing density and separation performance Grant 11,173,440 - Herman , et al. November 16, 2 | 2021-11-16 |
| Air-oil separator with jet-enhanced impaction and method associated therewith Grant 11,174,766 - Herman , et al. November 16, 2 | 2021-11-16 |
| Crankcase Ventilation Systems Having A Swirl Breaker To Reduce Pressure Drop In Tangentially Exiting Fluids App 20210180486 - Surana; Navin ; et al. | 2021-06-17 |
| Integral Flow Structure Within A Containment Cover App 20210170313 - Abdalla; Wassem ; et al. | 2021-06-10 |
| Filter Element With A Spacer App 20210154602 - Currier; Wilson L. ; et al. | 2021-05-27 |
| Restriction Indicator Device For Filter Assembly App 20210129065 - Louison; Matt ; et al. | 2021-05-06 |
| External Brace Reinforcement Structure For Improved Strength And Performance Of Primary Filter Element App 20210121806 - Murthy; Aditya S. ; et al. | 2021-04-29 |
| Separation Assembly With A Single-piece Impulse Turbine App 20210039115 - Herman; Peter K. ; et al. | 2021-02-11 |
| Variable inertial particle separator Grant 10,888,881 - Herman , et al. January 12, 2 | 2021-01-12 |
| Variable Inertial Particle Separator App 20200376501 - Herman; Peter K. ; et al. | 2020-12-03 |
| Tangential Air Cleaner With Coiled Filter Cartridge App 20200353483 - Bannister; Robert A. ; et al. | 2020-11-12 |
| Water Drain Mechanism For Filter Assemblies App 20200347809 - Bhat; Mahesh Suhas ; et al. | 2020-11-05 |
| Air filter arrangement Grant 10,821,385 - Schwartz , et al. November 3, 2 | 2020-11-03 |
| Air-oil Separator With Jet-enhanced Impaction And Method Associated Therewith App 20200332686 - Herman; Peter K. ; et al. | 2020-10-22 |
| Inertial Precleaner With Variable Aspiration Flowrate Control Via Ambient Dust Concentration Sensor Input App 20200318585 - Herman; Peter K. ; et al. | 2020-10-08 |
| Rotating Coalescing Element with Directed Liquid Drainage and Gas Outlet App 20200276532 - Schwandt; Brian W. ; et al. | 2020-09-03 |
| Tangential air cleaner with coiled filter cartridge Grant 10,737,282 - Bannister , et al. A | 2020-08-11 |
| Methods and apparatuses for missing filter detection and prevention in rotating coalescer designs Grant 10,737,209 - Peck , et al. A | 2020-08-11 |
| Air-oil separator with jet-enhanced impaction and method associated therewith Grant 10,718,242 - Herman , et al. | 2020-07-21 |
| Fuel Filter Cartridges With Automated Air-bleeding Internal Features App 20200215469 - Bowerman; Jeff A. ; et al. | 2020-07-09 |
| Methods and apparatuses for separating liquid particles from a gas-liquid stream Grant 10,688,426 - Peck , et al. | 2020-06-23 |
| Rotating coalescing element with directed liquid drainage and gas outlet Grant 10,682,601 - Schwandt , et al. | 2020-06-16 |
| Axial Flow Centrifugal Separator App 20200171420 - Holm; Christopher E. ; et al. | 2020-06-04 |
| Bi-directional No Filter No Run Pin App 20200147529 - Kadam; Pravin Shantinath ; et al. | 2020-05-14 |
| Virtual filter condition sensor Grant 10,634,022 - Verdegan , et al. | 2020-04-28 |
| Separation Assembly With A Single-piece Impulse Turbine App 20200061638 - Herman; Peter K. ; et al. | 2020-02-27 |
| Systems and methods for utilizing a low-friction rotating coalescer contact seal Grant 10,537,842 - Parikh , et al. Ja | 2020-01-21 |
| System And Method For Improving Mass Air Flow Signal Quality App 20190381442 - Li; Miao ; et al. | 2019-12-19 |
| System and method for improving mass air flow signal quality Grant 10,507,417 - Li , et al. Dec | 2019-12-17 |
| Filter Assembly With A Diffuser App 20190351359 - Herman; Peter K. | 2019-11-21 |
| Impulse Turbine With Non-wetting Surface For Improved Hydraulic Efficiency App 20190321765 - Herman; Peter K. ; et al. | 2019-10-24 |
| Air filter assemblies and carrier frames having vortex-generating flow guide Grant 10,441,910 - Herman , et al. Oc | 2019-10-15 |
| Centrifugal Separator With Improved Volumetric Surface Area Packing Density And Separation Performance App 20190299134 - Herman; Peter K. ; et al. | 2019-10-03 |
| Virtual Filter Condition Sensor App 20190226367 - Verdegan; Barry Mark ; et al. | 2019-07-25 |
| Virtual filter condition sensor Grant 10,287,935 - Verdegan , et al. | 2019-05-14 |
| Filter Port Seal App 20190076762 - KADAM; Pravin S. ; et al. | 2019-03-14 |
| Air intake water separator Grant 10,213,718 - Loken , et al. Feb | 2019-02-26 |
| Tangential Air Cleaner With Coiled Filter Cartridge App 20180290153 - Bannister; Robert A. ; et al. | 2018-10-11 |
| System And Method For Oil Filtration In Bypass Mode App 20180264383 - Bisurkar; Sonali ; et al. | 2018-09-20 |
| Rotating Coalescing Element with Directed Liquid Drainage and Gas Outlet App 20180243677 - Schwandt; Brian W. ; et al. | 2018-08-30 |
| Virtual Filter Condition Sensor App 20180245491 - Verdegan; Barry Mark ; et al. | 2018-08-30 |
| Air Filter Arrangement App 20180229170 - Schwartz; Scott W. ; et al. | 2018-08-16 |
| Air-oil Separator With Jet-enhanced Impaction And Method Associated Therewith App 20180230873 - Herman; Peter K. ; et al. | 2018-08-16 |
| Auto Drain System For Vacuum And Pressure Side Fuel Water Separator App 20180216588 - WANKHEDE; Amit Shashikant ; et al. | 2018-08-02 |
| Systems And Methods For Utilizing A Low-friction Rotating Coalescer Contact Seal App 20180169556 - Parikh; Chirag D. ; et al. | 2018-06-21 |
| Methods And Apparatuses For Missing Filter Detection And Prevention In Rotating Coalescer Designs App 20180140985 - Peck; Lee A. ; et al. | 2018-05-24 |
| Systems And Methods For Rotating Coalescers Maintaining Positive Recirculation Through A Dynamic Seal App 20180140986 - Parikh; Chirag D. ; et al. | 2018-05-24 |
| Virtual filter condition sensor Grant 9,976,456 - Verdegan , et al. May 22, 2 | 2018-05-22 |
| Crankcase ventilation inside-out flow rotating coalescer Grant 9,885,265 - Schwandt , et al. February 6, 2 | 2018-02-06 |
| Air-oil separator with jet-enhanced impaction and method associated therewith Grant 9,879,578 - Herman , et al. January 30, 2 | 2018-01-30 |
| Auto Drain System For Vacuum Side Fuel Water Separators App 20170335812 - Xiao; Hui ; et al. | 2017-11-23 |
| System for monitoring and indicating filter life Grant 9,776,114 - Verdegan , et al. October 3, 2 | 2017-10-03 |
| Methods And Apparatuses For Separating Liquid Particles From A Gas-liquid Stream App 20170274306 - PECK; Lee A. ; et al. | 2017-09-28 |
| Methods and apparatuses for separating liquid particles from a gas-liquid stream Grant 9,737,835 - Peck , et al. August 22, 2 | 2017-08-22 |
| Filter Element With Varied Filter Media Pack Characteristics App 20170197165 - SCHWARTZ; Scott W. ; et al. | 2017-07-13 |
| Air Intake Water Separator App 20170100689 - Loken; Gregory K. ; et al. | 2017-04-13 |
| Air Filter Assemblies and Carrier Frames Having Vortex-Generating Flow Guide App 20170043289 - Herman; Peter K. ; et al. | 2017-02-16 |
| System and Method for Improving Mass Air Flow Signal Quality App 20170036152 - Li; Miao ; et al. | 2017-02-09 |
| Filter with tri-flow path combinations Grant 9,555,346 - Holm , et al. January 31, 2 | 2017-01-31 |
| Air filter assemblies and carrier frames having vortex-generating flow guide Grant 9,504,947 - Herman , et al. November 29, 2 | 2016-11-29 |
| Air-oil Separator With Jet-enhanced Impaction And Method Associated Therewith App 20160032798 - Herman; Peter K. ; et al. | 2016-02-04 |
| Virtual Filter Condition Sensor App 20150361840 - Verdegan; Barry Mark ; et al. | 2015-12-17 |
| System for Monitoring and Indicating Filter Life App 20150328568 - Verdegan; Barry M. ; et al. | 2015-11-19 |
| System for monitoring and indicating filter life Grant 9,061,224 - Verdegan , et al. June 23, 2 | 2015-06-23 |
| Inside-out flow filter with pressure recovery Grant 8,986,539 - Herman , et al. March 24, 2 | 2015-03-24 |
| Crankcase Ventilation Inside-Out Flow Rotating Coalescer App 20150027422 - Schwandt; Brian W. ; et al. | 2015-01-29 |
| Filter cartridge having a filter within a filter, and an endplate sealing structure on an outer filter element Grant 8,932,465 - Wells , et al. January 13, 2 | 2015-01-13 |
| V-shaped filter with serviceable frames and cartridges Grant 8,926,725 - Loken , et al. January 6, 2 | 2015-01-06 |
| Drain valve for filter service and method Grant 8,845,897 - Wieczorek , et al. September 30, 2 | 2014-09-30 |
| Crankcase ventilation inside-out flow rotating coalescer Grant 8,794,222 - Schwandt , et al. August 5, 2 | 2014-08-05 |
| Air Filter Assemblies and Carrier Frames Having Vortex-Generating Flow Guide App 20140130467 - Herman; Peter K. ; et al. | 2014-05-15 |
| Methods and Apparatuses for Separating Liquid Particles from a Gas-Liquid Stream App 20140033921 - Peck; Lee A. ; et al. | 2014-02-06 |
| V-Shaped Filter with Serviceable Frames and Cartridges App 20140034565 - Loken; Gregory K. ; et al. | 2014-02-06 |
| Top Load Filter With Exterior Drain Actuation App 20140027366 - Hawkins; Charles W. ; et al. | 2014-01-30 |
| Engine air management system Grant 08616188 - | 2013-12-31 |
| Engine air management system Grant 8,616,188 - Heckel , et al. December 31, 2 | 2013-12-31 |
| Apparatus, system, and method for a self-venting drain valve Grant 8,584,702 - Abdalla , et al. November 19, 2 | 2013-11-19 |
| Engine air filter replacement indication system Grant 8,534,123 - Herman , et al. September 17, 2 | 2013-09-17 |
| Lubricant Oil Filter With Continuous Release Additive Vessel App 20130199983 - PATEL; Manish ; et al. | 2013-08-08 |
| Drain tube for gas-liquid separation systems Grant 8,470,062 - Herman , et al. June 25, 2 | 2013-06-25 |
| Engine Air Management System App 20130104860 - Heckel; Scott P. ; et al. | 2013-05-02 |
| Filtration device with releasable additive Grant 8,425,772 - Martin , et al. April 23, 2 | 2013-04-23 |
| Filter Cartridge Having A Filter Within A Filter, And An Endplate Sealing Structure On An Outer Filter Element App 20130087497 - WELLS; Aaron M. ; et al. | 2013-04-11 |
| Engine air management system Grant 8,342,160 - Heckel , et al. January 1, 2 | 2013-01-01 |
| Filter cartridge having a filter within a filter, and an endplate sealing structure on an outer filter element Grant 8,333,890 - Wells , et al. December 18, 2 | 2012-12-18 |
| Filter with Tri-Flow Path Combinations App 20120285901 - Holm; Christopher E. ; et al. | 2012-11-15 |
| Filter with Shaped Flow Path Combinations App 20120285902 - Holm; Christopher E. ; et al. | 2012-11-15 |
| Filter with Specified Flow Path Combinations App 20120285324 - Holm; Christopher E. ; et al. | 2012-11-15 |
| Inside-Out Flow Filter with Pressure Recovery App 20120267294 - Herman; Peter K. ; et al. | 2012-10-25 |
| Multistage variable impactor Grant 8,241,411 - Faber , et al. August 14, 2 | 2012-08-14 |
| Engine Air Management System App 20120186566 - Heckel; Scott P. ; et al. | 2012-07-26 |
| Inertial impactor with enhanced separation Grant 8,202,339 - Janakiraman , et al. June 19, 2 | 2012-06-19 |
| Multistage Variable Impactor App 20120144788 - Faber; Stephanie L. ; et al. | 2012-06-14 |
| Spin-on filter with performance enhancement features Grant 8,177,967 - Bagci , et al. May 15, 2 | 2012-05-15 |
| Engine air management system Grant 8,146,574 - Heckel , et al. April 3, 2 | 2012-04-03 |
| Multistage variable impactor Grant 8,118,909 - Faber , et al. February 21, 2 | 2012-02-21 |
| Space optimized coalescer Grant 8,114,183 - Schwandt , et al. February 14, 2 | 2012-02-14 |
| Elliptical seal interface for filter assembly Grant 8,097,061 - Smith , et al. January 17, 2 | 2012-01-17 |
| Engine Air Filter Replacement Indication System App 20110308308 - Herman; Peter K. ; et al. | 2011-12-22 |
| System for Monitoring and Indicating Filter Life App 20110307160 - Verdegan; Barry M. ; et al. | 2011-12-15 |
| Rotative inertial impactor gas-oil separator for internal combustion engine Grant 8,075,655 - Anderson , et al. December 13, 2 | 2011-12-13 |
| Filtration Device With Releasable Additive App 20110278215 - Martin; Harold R. ; et al. | 2011-11-17 |
| Filtration device with releasable additive Grant 8,007,667 - Martin , et al. August 30, 2 | 2011-08-30 |
| Multistage Variable Impactor App 20110197765 - Faber; Stephanie L. ; et al. | 2011-08-18 |
| Crankcase Ventilation Inside-Out Flow Rotating Coalescer App 20110180051 - Schwandt; Brian W. ; et al. | 2011-07-28 |
| Drain Tube for Gas-Liquid Separation Systems App 20110167774 - Herman; Peter K. ; et al. | 2011-07-14 |
| Inertial gas-liquid separator with axially variable orifice area Grant 7,964,009 - Herman , et al. June 21, 2 | 2011-06-21 |
| Multistage variable impactor Grant 7,935,165 - Faber , et al. May 3, 2 | 2011-05-03 |
| Inertial Impactor with Enhanced Separation App 20110023429 - Janakiraman; Arun ; et al. | 2011-02-03 |
| Crankcase ventilation system with pumped scavenged oil Grant 7,870,850 - Herman , et al. January 18, 2 | 2011-01-18 |
| Centrifuge rotor-detection oil-shutoff device Grant 7,871,364 - Herman January 18, 2 | 2011-01-18 |
| Inertial gas-liquid separator with constrictable and expansible nozzle valve sidewall Grant 7,857,883 - Scheckel , et al. December 28, 2 | 2010-12-28 |
| Filter with installation integrity and magnetic flow-control Grant 7,850,845 - Wieczorek , et al. December 14, 2 | 2010-12-14 |
| Gas-liquid separator with dual flow impaction and coalescence Grant 7,828,865 - Hodges , et al. November 9, 2 | 2010-11-09 |
| Flow control valve with plate spring force actuation Grant 7,776,215 - Abdalla , et al. August 17, 2 | 2010-08-17 |
| Engine Air Management System App 20100199958 - Heckel; Scott P. ; et al. | 2010-08-12 |
| Crankcase Ventilation System with Pumped Scavenged Oil App 20100175642 - Herman; Peter K. ; et al. | 2010-07-15 |
| Multistage Variable Impactor App 20100107883 - Faber; Stephanie L. ; et al. | 2010-05-06 |
| Filter with Installation Integrity and Magnetic Flow-Control App 20100108591 - Wieczorek; Mark T. ; et al. | 2010-05-06 |
| Inertial Gas-Liquid Separator with Axially Variable Orifice Area App 20100101425 - Herman; Peter K. ; et al. | 2010-04-29 |
| Filter Cartridge Having A Filter Within A Filter, And An Endplate Sealing Structure On An Outer Filter Element App 20100101993 - Wells; Aaron M. ; et al. | 2010-04-29 |
| Crankcase ventilation system with pumped scavenged oil Grant 7,699,029 - Herman , et al. April 20, 2 | 2010-04-20 |
| Elliptical Seal Interface For Filter Assembly App 20100064646 - Smith; Bradley ; et al. | 2010-03-18 |
| Centrifuge with integral depth filter Grant 7,674,376 - Herman , et al. March 9, 2 | 2010-03-09 |
| Gas-Liquid Separator with Dual Flow Impaction and Coalescence App 20100024366 - Hodges; Daniel Y. ; et al. | 2010-02-04 |
| Automatic water drain for suction fuel water separators Grant 7,655,140 - Wieczorek , et al. February 2, 2 | 2010-02-02 |
| Multistage variable impactor Grant 7,648,543 - Faber , et al. January 19, 2 | 2010-01-19 |
| Rotative Inertial Impactor Gas-Oil Separator for Internal Combustion Engine App 20090308249 - Anderson; John R. ; et al. | 2009-12-17 |
| Filter Seal App 20090294351 - Herman; Peter K. ; et al. | 2009-12-03 |
| Filter with installation integrity and magnetic flow-control Grant 7,615,151 - Wieczorek , et al. November 10, 2 | 2009-11-10 |
| Filtration Device With Releasable Additive App 20090250388 - Martin; Harold R. ; et al. | 2009-10-08 |
| Spiral vane insert for a centrifuge Grant 7,566,294 - Amirkhanian , et al. July 28, 2 | 2009-07-28 |
| Filtration device with releasable additive Grant 7,563,368 - Martin , et al. July 21, 2 | 2009-07-21 |
| Apparatus, System, And Method For A Self-venting Drain Valve App 20090114287 - Abdalla; Wassem ; et al. | 2009-05-07 |
| Inertial Gas-Liquid Separator with Constrictable and Expansible Nozzle Valve Sidewall App 20090100811 - Scheckel; Benjamin L. ; et al. | 2009-04-23 |
| Magnetic check valve Grant 7,506,663 - Thomas , et al. March 24, 2 | 2009-03-24 |
| Flow Control Valve With Plate Spring Force Actuation App 20090045109 - ABDALLA; Wassem ; et al. | 2009-02-19 |
| Crankcase Ventilation System with Pumped Scavenged Oil App 20090025662 - Herman; Peter K. ; et al. | 2009-01-29 |
| Drain Valve For Filter Service And Method App 20080308481 - Wieczorek; Mark ; et al. | 2008-12-18 |
| Inertial Gas-liquid Separator With Slot Nozzle App 20080264018 - Herman; Peter K. | 2008-10-30 |
| Centrifuge rotor-detection oil-shutoff device App 20080220957 - Herman; Peter K. | 2008-09-11 |
| Filter with Installation Integrity and Magnetic Flow-Control App 20080179236 - Wieczorek; Mark T. ; et al. | 2008-07-31 |
| Centrifuge rotor-detection oil-shutoff device Grant 7,393,317 - Herman July 1, 2 | 2008-07-01 |
| Filtration Device With Releasable Additive App 20080135467 - MARTIN; Harold R. ; et al. | 2008-06-12 |
| Spiral vane insert for a centrifuge App 20080132396 - Amirkhanian; Hendrik N. ; et al. | 2008-06-05 |
| Apparatus, System, And Method For Maximizing Ultrafine Meltblown Fiber Attenuation App 20080122143 - Herman; Peter K. ; et al. | 2008-05-29 |
| Hero-turbine centrifuge with flow-isolated collection chamber Grant 7,377,893 - Herman , et al. May 27, 2 | 2008-05-27 |
| Magnetic check valve App 20080017256 - Thomas; Chad M. ; et al. | 2008-01-24 |
| Pressure gradient dosing system for fluid supply Grant 7,297,256 - Loftis , et al. November 20, 2 | 2007-11-20 |
| Multistage Variable Impactor App 20070256566 - Faber; Stephanie L. ; et al. | 2007-11-08 |
| Variable flow inertial gas-liquid impactor separator Grant 7,238,216 - Malgorn , et al. July 3, 2 | 2007-07-03 |
| Integral air/oil coalescer for a centrifuge Grant 7,235,177 - Herman , et al. June 26, 2 | 2007-06-26 |
| Space optimized coalescer App 20070062887 - Schwandt; Brian W. ; et al. | 2007-03-22 |
| Liquid additive slow-release apparatus driven by a filter pressure gradient Grant 7,156,991 - Herman , et al. January 2, 2 | 2007-01-02 |
| Liquid additive slow-release apparatus driven by a filter pressure gradient Grant 7,153,422 - Herman , et al. December 26, 2 | 2006-12-26 |
| Hero-turbine centrifuge with flow-isolated collection chamber App 20060240965 - Herman; Peter K. ; et al. | 2006-10-26 |
| Centrifuge rotor-detection oil-shutoff device App 20060229185 - Herman; Peter K. | 2006-10-12 |
| Pressure gradient dosing system for fluid supply App 20060180537 - Loftis; Ted S. ; et al. | 2006-08-17 |
| Automatic water drain for suction fuel water separators App 20060086649 - Wieczorek; Mark T. ; et al. | 2006-04-27 |
| Variable flow inertial gas-liquid impactor separator App 20060059875 - Malgorn; Gerard ; et al. | 2006-03-23 |
| Spin-on filter with performance enhancement features App 20050178706 - Bagci, Ismail C. ; et al. | 2005-08-18 |
| Centrifuge with separate hero turbine Grant 6,929,596 - Amirkhanian , et al. August 16, 2 | 2005-08-16 |
| Liquid additive slow-release apparatus driven by a filter pressure gradient App 20050167350 - Herman, Peter K. ; et al. | 2005-08-04 |
| Liquid additive slow-release apparatus driven by a filter pressure gradient App 20050167351 - Herman, Peter K. ; et al. | 2005-08-04 |
| Disposable centrifuge with molded gear drive and impulse turbine Grant 6,893,389 - South , et al. May 17, 2 | 2005-05-17 |
| Centrifuge rotor with low-pressure shut-off and capacity sensor Grant 6,821,241 - Herman , et al. November 23, 2 | 2004-11-23 |
| Integral air/oil coalescer for a centrifuge App 20040214710 - Herman, Peter K. ; et al. | 2004-10-28 |
| Internal seal for a disposable centrifuge Grant 6,793,615 - South , et al. September 21, 2 | 2004-09-21 |
| Centrifuge with separate hero turbine App 20040157719 - Amirkhanian, Hendrik N. ; et al. | 2004-08-12 |
| Extended life combination filter Grant 6,709,575 - Verdegan , et al. March 23, 2 | 2004-03-23 |
| Centrifuge rotor with low-pressure shut-off and capacity sensor App 20040023782 - Herman, Peter K. ; et al. | 2004-02-05 |
| Disposable rotor shell with integral molded spiral vanes Grant 6,652,439 - Herman , et al. November 25, 2 | 2003-11-25 |
| Internal seal for a disposable centrifuge App 20030162645 - South, Kevin C. ; et al. | 2003-08-28 |
| Self-driven centrifuge with vane module Grant 6,602,180 - Herman , et al. August 5, 2 | 2003-08-05 |
| Air-assisted drain with pressure cutoff valve Grant 6,599,229 - South , et al. July 29, 2 | 2003-07-29 |
| Centrifuge housing with oil fill port Grant 6,533,712 - Miller , et al. March 18, 2 | 2003-03-18 |
| Centrifuge rotation indicator App 20020147096 - Herman, Peter K. ; et al. | 2002-10-10 |
| Self-driven centrifuge with vane module App 20020119883 - Herman, Peter K. ; et al. | 2002-08-29 |
| Disposable rotor shell with integral molded spiral vanes App 20020049126 - Herman, Peter K. ; et al. | 2002-04-25 |
| Molded spiral vane and liner component for a centrifuge App 20020045526 - Herman, Peter K. ; et al. | 2002-04-18 |
| Hero-turbine centrifuge with drainage enhancing baffle devices Grant 6,364,822 - Herman , et al. April 2, 2 | 2002-04-02 |
| Extended life dual full-flow and bypass filter Grant 6,319,402 - Schwandt , et al. November 20, 2 | 2001-11-20 |
| Unitary spiral vane centrifuge module App 20010029227 - Herman, Peter K. ; et al. | 2001-10-11 |
| Disposable, self-driven centrifuge App 20010016549 - Herman, Peter K. ; et al. | 2001-08-23 |
| Air/oil coalescer with centrifugally assisted drainage Grant 6,139,595 - Herman , et al. October 31, 2 | 2000-10-31 |
| Nozzle inlet enhancement for a high speed turbine-driven centrifuge Grant 6,019,717 - Herman February 1, 2 | 2000-02-01 |
| Self-driven, cone-stack type centrifuge Grant 5,795,477 - Herman , et al. August 18, 1 | 1998-08-18 |
| Closed crankcase ventilation system Grant 5,669,366 - Beach , et al. September 23, 1 | 1997-09-23 |
| Self-driven, cone-stack type centrifuge Grant 5,575,912 - Herman , et al. November 19, 1 | 1996-11-19 |
| Pressure side integrated air filter and filtering networks for engines Grant 5,472,463 - Herman , et al. December 5, 1 | 1995-12-05 |
| Self-venting drain value assembly Grant 4,893,651 - Herman , et al. January 16, 1 | 1990-01-16 |
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