MULLER; Markus

Patent Applications and Registrations

Patent applications and USPTO patent grants for MULLER; Markus.The latest application filed is for "methods for protein purification".

Company Profile

9.83.122

MULLER; Markus - Rixensart BE
Muller; Markus - Munich DE
Muller; Markus - Koblenz DE
Muller; Markus - Mannedorf CH
MULLER; Markus - Troisdorf DE
MULLER; Markus - Linkenheim-Hochstetten DE
Muller; Markus - Hilden DE
MULLER; Markus - Friedrichshafen DE
Muller; Markus - Dresden DE
Muller; Markus - Hettlingen CH
MULLER; Markus - Wegenstetten CH
Muller; Markus - Uster CH
Muller; Markus - Dormagen DE
Muller; Markus - Munchen DE
Muller; Markus - Hamburg DE
Muller; Markus - Tamm DE
Muller; Markus - Nuremberg DE
MULLER; Markus - RADEBERG DE
Muller; Markus - Zufikon CH
MULLER; Markus - Munnerstadt DE
MULLER; MARKUS - DUBENDORF CH
Muller; Markus - Gebesee N/A DE
Muller; Markus - Waiblingen DE
Muller; Markus - Darmstadt DE
Muller; Markus - Wolfschlugen N/A DE
Muller; Markus - Brussels N/A BE
Muller; Markus - Heidenheim DE
Muller; Markus - Domagen DE
Muller; Markus - Dintikon CH
Muller; Markus - Marl N/A DE
Muller; Markus - Hersbruck DE
Muller; Markus - Nurnberg DE
Muller; Markus - Fruthwilen CH
Muller; Markus - Eindhoven NL
Muller; Markus - Dormagen-Nievenheim DE
Muller; Markus - Paderborn DE
Muller; Markus - Grenoble FR
Muller; Markus - Bruxelles BE
Muller; Markus - Stein CH
Muller; Markus - Berlin DE
Muller; Markus - Bend OR
Muller; Markus - Bochum DE
Muller, Markus - Remscheid DE
Muller; Markus - Burscheid DE
Muller; Markus - Villmergen CH

*profile and listings may contain filings by different individuals or companies with the same name. Review application materials to confirm ownership/assignment.

Patent Activity

Patent	Date
Methods For Protein Purification App 20220298205 - BRAUN; Martin Edward ; et al.	2022-09-22
Reagent for mass spectrometry Grant 11,442,046 - Carell , et al. September 13, 2	2022-09-13
Method for manufacturing a nozzle piston, production method for a damper, nozzle piston, damper, production plant for producing a damper Grant 11,353,083 - Lohken , et al. June 7, 2	2022-06-07
Custom Hearing Device Equipped With Optical Sensors For Biometrical Sensing App 20220174432 - Silberzahn; Konstantin ; et al.	2022-06-02
Oral Thin Film App 20220160646 - MULLER; Markus ; et al.	2022-05-26
Transdermal therapeutic system on the basis of adhesive plasticizer-polymer matrices Grant 11,304,912 - Linn , et al. April 19, 2	2022-04-19
Oral Thin Film App 20220096367 - BAUER; Marius ; et al.	2022-03-31
Method for producing a piston and piston Grant 11,278,993 - Lohken , et al. March 22, 2	2022-03-22
Hearing Device App 20220086576 - Thumm; Natasha ; et al.	2022-03-17
Neural Modulation Codes For Multilingual And Style Dependent Speech And Language Processing App 20220059083 - MULLER; Markus ; et al.	2022-02-24
Chromatographic device and method for isolating and purifying nucleic acids Grant 11,253,797 - Fabis , et al. February 22, 2	2022-02-22
Cerumen protection plug Grant 11,228,851 - Dittli , et al. January 18, 2	2022-01-18
Film-like form of administration for the transmucosal delivery of antidiabetic peptides Grant 11,213,491 - Muller , et al. January 4, 2	2022-01-04
Cerumen filter applicator Grant 11,190,888 - Beedham , et al. November 30, 2	2021-11-30
Hearing Device With Optical Sensor At Spout App 20210298670 - Roeck; Hans-Ueli ; et al.	2021-09-30
Processes For Offsetting A Carbon Footprint Of A Multistage Trip And For The Lifecycle Of A Vehicle App 20210256781 - JORN; Paul ; et al.	2021-08-19
Calibration device Grant 11,073,590 - Panicke , et al. July 27, 2	2021-07-27
Floor cleaning apparatus and method of cleaning a floor Grant 11,071,431 - Windmeisser , et al. July 27, 2	2021-07-27
Method For Producing A Piston And Piston App 20210197326 - Lohken; Lars ; et al.	2021-07-01
Rail brake damper Grant 11,028,896 - Probst , et al. June 8, 2	2021-06-08
Seating device comprising seating parameter detection Grant 10,888,161 - Lohken , et al. January 12, 2	2021-01-12
Rotational damper and seating arrangement Grant 10,875,423 - Lohken , et al. December 29, 2	2020-12-29
Oral Thin Film With High Active Agent Loading App 20200383936 - SCHMITZ; Christoph ; et al.	2020-12-10
Cerumen Protection Plug App 20200382882 - Dittli; Erich ; et al.	2020-12-03
Piston-cylinder assembly Grant 10,808,791 - Lohken , et al. October 20, 2	2020-10-20
Rail Brake Damper App 20200325956 - Probst; Ulrich ; et al.	2020-10-15
Method of customizing a hearing device component, a hearing device component and a hearing device Grant 10,805,747 - Thumm , et al. October 13, 2	2020-10-13
Cerumen Filter Applicator App 20200296528 - Beedham; Martyn ; et al.	2020-09-17
Transdermal Therapeutic System On The Basis Of Adhesive Plasticizer-polymer Matrices App 20200281867 - LINN; Michael ; et al.	2020-09-10
Water-soluble Polymer Adhesive Layers App 20200281847 - LINN; Michael ; et al.	2020-09-10
Folate Salts For Medical Use App 20200261460 - ULMANN; Martin ; et al.	2020-08-20
An Apparatus For Dispensing A Mixture Of A Diluent And An Additive For Sanitation, Cosmetic Or Cleaning Applications App 20200181893 - Mock; Elmar ; et al.	2020-06-11
Systems and methods for damping photovoltaic panel arrays Grant 10,648,528 - Kull , et al.	2020-05-12
Quickly Disintegrating Foam Wafer with High Mass Per Unit Area App 20200138714 - MULLER; Markus ; et al.	2020-05-07
Method and system for preventing and/or extinguishing a fire Grant 10,639,508 - Muller , et al.	2020-05-05
Measurement Of Operating Parameters On Actuators App 20200064223 - Ehre; Thomas ; et al.	2020-02-27
Method For Manufacturing A Nozzle Piston, Production Method For A Damper, Nozzle Piston, Damper, Production Plant For Producing App 20200056674 - Lohken; Lars ; et al.	2020-02-20
Rapid Purification Of High Quality Nucleic Acids From Biological Samples App 20200056169 - Muller; Markus ; et al.	2020-02-20
Reagent For Mass Spectrometry App 20200041470 - Carell; Thomas ; et al.	2020-02-06
A Method Of Customizing A Hearing Device Component, A Hearing Device Component And A Hearing Device App 20200029161 - Thumm; Natasha ; et al.	2020-01-23
Transmucosal Delivery System For Idebenone App 20200009080 - LINN; Michael ; et al.	2020-01-09
Device for isolation and/or purification of biomolecules Grant 10,514,330 - Hollander , et al. Dec	2019-12-24
Pressure bulkhead for an aircraft fuselage, and an aircraft comprising such a pressure bulkhead Grant 10,501,163 - Jorn , et al. Dec	2019-12-10
Electromechanical control assembly for a chair Grant 10,453,332 - Lohken , et al. Oc	2019-10-22
Pressure bulkhead for an aircraft fuselage Grant 10,384,759 - Zuardy , et al. A	2019-08-20
Aircraft structural component Grant 10,377,461 - Jorn , et al. A	2019-08-13
Method and system for manufacturing a three-dimensional object by additive manufacturing Grant 10,350,821 - Muller , et al. July 16, 2	2019-07-16
Corona ignition device Grant 10,340,664 - Pottiez , et al.	2019-07-02
Calibration Device App 20190170844 - PANICKE; Marcel ; et al.	2019-06-06
Method For Producing A Structural Section Of A Vehicle App 20190161154 - LINDE; Peter ; et al.	2019-05-30
Method for connecting fiber-reinforced structural components Grant 10,301,003 - Jorn , et al.	2019-05-28
Control device for a power semiconductor switch Grant 10,291,221 - Beckedahl , et al.	2019-05-14
Film-like Form of Administration for the Transmucosal Delivery of Antidiabetic Peptides App 20190125692 - MULLER; Markus ; et al.	2019-05-02
Pressure bulkhead for an aircraft fuselage, and an aircraft comprising such a pressure bulkhead Grant 10,259,557 - Jorn , et al.	2019-04-16
Floor Cleaning Apparatus And Method Of Cleaning A Floor App 20190082921 - Windmeisser; Dieter ; et al.	2019-03-21
Systems And Methods For Damping Photovoltaic Panel Arrays App 20190072150 - Kull; James T. ; et al.	2019-03-07
Rotational Damper And Seating Arrangement App 20190070978 - Lohken; Lars ; et al.	2019-03-07
Piece of furniture and adjusting assembly, in particular for adjusting a back of a chair Grant 10,219,625 - Probst , et al.	2019-03-05
Thermoformed acoustic seal Grant 10,142,748 - Karamuk , et al. Nov	2018-11-27
Seating Device Comprising Seating Parameter Detection App 20180332966 - Lohken; Lars ; et al.	2018-11-22
Floor cleaning apparatus and method of cleaning a floor Grant 10,130,231 - Windmeisser , et al. November 20, 2	2018-11-20
Control Device For A Power Semiconductor Switch App 20180309436 - BECKEDAHL; PETER ; et al.	2018-10-25
Storage, collection or isolation device Grant 10,094,749 - Hiesinger , et al. October 9, 2	2018-10-09
Piston-cylinder Assembly App 20180156294 - Lohken; Lars ; et al.	2018-06-07
Screw arrangement and seat arrangement comprising a screw arrangement Grant 9,885,403 - Lohken , et al. February 6, 2	2018-02-06
Method And System For Preventing And/or Extinguishing A Fire App 20170368390 - Muller; Markus ; et al.	2017-12-28
Electrically adjustable office chair Grant 9,848,705 - Probst , et al. December 26, 2	2017-12-26
Encapsulated hearing device Grant 9,832,579 - Karamuk , et al. November 28, 2	2017-11-28
Pinion Formed By Two Joinable Parts App 20170276227 - MULLER; Markus ; et al.	2017-09-28
Pressure Bulkhead For An Aircraft Fuselage App 20170137107 - Zuardy; Ichwan ; et al.	2017-05-18
Movement-damping unit and spring unit comprising a movement-damping unit of this type Grant 9,598,889 - Lohken , et al. March 21, 2	2017-03-21
Electrically Adjustable Office Chair App 20170027323 - Probst; Ulrich ; et al.	2017-02-02
Floor Cleaning Apparatus And Method Of Cleaning A Floor App 20170027401 - Windmeisser; Dieter ; et al.	2017-02-02
Piece Of Furniture And Adjusting Assembly, In Particular For Adjusting A Back Of A Chair App 20170027325 - Probst; Ulrich ; et al.	2017-02-02
Thermoformed Acoustic Seal App 20160373868 - KARAMUK; Erdal ; et al.	2016-12-22
Pressure Bulkhead For An Aircraft Fuselage, And An Aircraft Comprising Such A Pressure Bulkhead App 20160340017 - Jorn; Paul ; et al.	2016-11-24
Pressure Bulkhead For An Aircraft Fuselage, And An Aircraft Comprising Such A Pressure Bulkhead App 20160340018 - Jorn; Paul ; et al.	2016-11-24
Screw Arrangement And Seat Arrangement Comprising A Screw Arrangement App 20160327140 - Lohken; Lars ; et al.	2016-11-10
Electromechanical Control Assembly For A Chair App 20160327933 - Lohken; Lars ; et al.	2016-11-10
Method For Connectiong Fiber-reinforced Structural Components App 20160318631 - JORN; Paul J ; et al.	2016-11-03
Chromatographic Device And Method For Isolating And Purifying Nucleic Acids App 20160317949 - FABIS; Roland ; et al.	2016-11-03
Corona Ignition Device App 20160226226 - Pottiez; Christian ; et al.	2016-08-04
Method And System For Manufacturing A Three-dimensional Object By Additive Manufacturing App 20160144567 - Muller; Markus ; et al.	2016-05-26
Method of using a film-shaped preparation comprising oily substances for oral administration Grant 9,265,779 - Muller , et al. February 23, 2	2016-02-23
Corona Ignition Device App 20160049773 - Stifel; Timo ; et al.	2016-02-18
Setting accelerator for binders based on calcium sulfate Grant 9,255,032 - Muller , et al. February 9, 2	2016-02-09
Aircraft Structural Component App 20160001869 - Jorn; Paul ; et al.	2016-01-07
Movement-damping Unit And Spring Unit Comprising A Movement-damping Unit Of This Type App 20150337586 - Lohken; Lars ; et al.	2015-11-26
Combined Radial And Thrust Bearing And Wet Rotor Pump App 20150322957 - MULLER; Markus	2015-11-12
Tearing Brake App 20150299966 - FULDE; MARCEL ; et al.	2015-10-22
Method for isolating and purifying nucleic acids Grant 9,163,228 - Fabis , et al. October 20, 2	2015-10-20
Encapsulated Hearing Device App 20150249896 - Karamuk; Erdal ; et al.	2015-09-03
Hydraulic cylinder for a hydraulic drawing cushion Grant 9,038,431 - Micklisch , et al. May 26, 2	2015-05-26
Turbine housing for an exhaust gas turbocharger and method for producing turbine housing Grant 8,951,007 - Botsch , et al. February 10, 2	2015-02-10
Wet Rotor Pump Comprising A Permanent Magnet App 20150030479 - Muller; Markus	2015-01-29
Wet Rotor Pump Comprising Power Electronics App 20150004032 - Muller; Markus	2015-01-01
Wet Rotor Pump Comprising A Plain Bearing App 20140377101 - Muller; Markus	2014-12-25
Wet Rotor Pump App 20140341764 - Muller; Markus	2014-11-20
Force-sensing device for measuring a traction-and/or pressure force load in structure Grant 8,887,585 - Furniss , et al. November 18, 2	2014-11-18
Setting Accelerator For Binders Based On Calcium Sulfate App 20140303289 - MULLER; Markus ; et al.	2014-10-09
Edible film-shaped preparation with cola taste App 20140272069 - HOFFMANN; Hans-Rainer ; et al.	2014-09-18
Turbine housing for an exhaust gas turbocharger of an internal combustion engine Grant 8,827,635 - Kratschmer , et al. September 9, 2	2014-09-09
Method Of Using A Film-shaped Preparation Comprising Oily Substances For Oral Administration App 20140234444 - Muller; Markus ; et al.	2014-08-21
Device for joining book block and book cover Grant 8,790,060 - Muller July 29, 2	2014-07-29
Selective removal of a silicon oxide layer Grant 8,759,174 - Muller , et al. June 24, 2	2014-06-24
Film-shaped preparation comprising oily substances for oral administration Grant 8,758,803 - Muller , et al. June 24, 2	2014-06-24
Force Sensor Including Sensor Plate With Local Differences In Stiffness App 20130340537 - Freiwald; Florian ; et al.	2013-12-26
Device for sealing a rotating shaft Grant 8,550,780 - Muller , et al. October 8, 2	2013-10-08
Method And Device For Concentrating Target Compounds App 20130231460 - Erbacher; Christoph ; et al.	2013-09-05
Exhaust gas turbocharger for an internal combustion engine of a motor vehicle Grant 8,522,547 - Sumser , et al. September 3, 2	2013-09-03
Force-sensing device for measuring a traction-and/or pressure force load in structure App 20130180343 - Furniss; Hartmut ; et al.	2013-07-18
New Liquid Processing Device App 20130112622 - Muller; Markus ; et al.	2013-05-09
Device For Isolation And/or Purification Of Biomolecules App 20130115693 - Hollander; Vera ; et al.	2013-05-09
New Storage, Collection Or Isolation Device App 20130105393 - Hiesinger; Margit ; et al.	2013-05-02
Component Manipulator For The Dynamic Positioning Of A Substrate, Coating Method, As Well As Use Of A Component Manipulator App 20130071575 - Muller; Markus	2013-03-21
Method For Isolating And Purifying Nucleic Acids App 20130030163 - Fabis; Roland ; et al.	2013-01-31
Chromatographic Device And Method For Isolating And Purifying Nucleic Acids App 20130030165 - Fabis; Roland ; et al.	2013-01-31
Robust remote reset for networks Grant 8,363,542 - Lenz , et al. January 29, 2	2013-01-29
Method For Precipitating Anionic Surfactant Ions In The Presence Of Nucleic Acids App 20130023655 - Fabis; Roland ; et al.	2013-01-24
Method For The Production Of An Outer Wall, Method For The Production Of An Armored Motor Vehicle, And Side Wall For A Motor Vehicle App 20120312152 - Klasfauseweh; Udo ; et al.	2012-12-13
Fastening device for electronic modules on a support rail Grant 8,325,491 - Hecht , et al. December 4, 2	2012-12-04
Roller drive and roller transportation device Grant 8,307,976 - Kratz , et al. November 13, 2	2012-11-13
Holding device for a tool for processing a textile or non-textile sheet material for a sewing machine Grant 8,281,726 - Brunner , et al. October 9, 2	2012-10-09
Device and method for cutting textile and non-textile sheet materials Grant 8,272,341 - Konig , et al. September 25, 2	2012-09-25
Embroidery hoop Grant 8,245,654 - Konig , et al. August 21, 2	2012-08-21
Method of fabricating a transistor with semiconductor gate combined locally with a metal Grant 8,227,342 - Muller , et al. July 24, 2	2012-07-24
Changing hardware settings based on data preamble Grant 8,170,420 - Schorpp , et al. May 1, 2	2012-05-01
Turbine housing for an exhaust gas turbocharger and method for producing turbine housing App 20110318177 - Botsch; Siegfried ; et al.	2011-12-29
Hydraulic cylinder for a hydraulic drawing cushion App 20110265544 - Micklisch; Michael ; et al.	2011-11-03
Method for obtaining plasmid-DNA by means of an aqueous biphasic system Grant 8,034,562 - Muller , et al. October 11, 2	2011-10-11
Security Cabinet App 20110232542 - Rostek; Wilfried ; et al.	2011-09-29
Airframe structure of an aircraft or spacecraft Grant 8,016,234 - Muller , et al. September 13, 2	2011-09-13
Process for forming a wire portion in an integrated electronic circuit Grant 7,960,255 - Coronel , et al. June 14, 2	2011-06-14
Exhaust gas turbocharger for an internal combustion engine App 20110131976 - Kratschmer; Stephan ; et al.	2011-06-09
Gate structure and method for making same App 20110095381 - Muller; Markus ; et al.	2011-04-28
Exhaust gas turbocharger for an internal combustion engine of a motor vehicle App 20110088391 - Sumser; Siegfried ; et al.	2011-04-21
Turbine housing for an exhaust gas turbocharger of an internal combustion engine App 20110091318 - Kratschmer; Stephan ; et al.	2011-04-21
Film-shaped Preparation Comprising Oily Substances For Oral Administration App 20110064830 - Muller; Markus ; et al.	2011-03-17
Method of fabricating self aligned Schottky junctions for semiconductor devices Grant 7,884,002 - Muller February 8, 2	2011-02-08
Device for sealing a rotating shaft App 20110008169 - Muller; Markus ; et al.	2011-01-13
Embroidery Hoop App 20100313804 - Konig; Michael ; et al.	2010-12-16
Turbine housing and method for producing a turbine housing App 20100310364 - Botsch; Siegfried ; et al.	2010-12-09
MOS Transistor With Better Short Channel Effect Control and Corresponding Manufacturing Method App 20100283107 - Muller; Markus ; et al.	2010-11-11
Process For Forming A Wire Portion In An Integrated Electronic Circuit App 20100203712 - Coronel; Philippe ; et al.	2010-08-12
Holding Device For A Tool For Processing A Textile Or Non-textile Sheet Material For A Sewing Machine App 20100199900 - Brunner; Severin ; et al.	2010-08-12
Rudder Propeller Drive, And Rudder Propeller Driving Method App 20100190392 - Muller; Markus ; et al.	2010-07-29
Fastening device for electronic modules on a support rail App 20100134986 - Hecht; Franz ; et al.	2010-06-03
Method Of Fabricating A Transistor With Semiconductor Gate Combined Locally With A Metal App 20100102402 - Muller; Markus ; et al.	2010-04-29
Apparatus and process for drying items of laundry, using a heat pump and a heat exchanger App 20100083524 - Muller; Markus ; et al.	2010-04-08
Device And Method For Cutting Textile And Non-textile Sheet Materials App 20100050915 - Konig; Michael ; et al.	2010-03-04
Selective Removal Of A Silicon Oxide Layer App 20100041189 - Muller; Markus ; et al.	2010-02-18
Method For Selectively And Reversibly Adsorbing Nucleic Acids On A Carrier Material App 20100036109 - Frerix; Andreas ; et al.	2010-02-11
Dual gate CMOS fabrication Grant 7,659,154 - Muller , et al. February 9, 2	2010-02-09
Edible Film-shaped Preparation With Cola Taste App 20100015315 - Hoffmann; Hans-Rainer ; et al.	2010-01-21
Method for the Selective Enrichment of Double-Stranded Dna from Nucleic Acid Mixtures App 20100009434 - Muller; Markus ; et al.	2010-01-14
Changing Hardware Settings Based On Data Preamble App 20090238576 - SCHORPP; Marcus ; et al.	2009-09-24
Amine-substituted biphenyldiphosphines Grant 7,589,196 - Pugin , et al. September 15, 2	2009-09-15
Safety monitoring system for a people conveyor Grant 7,568,570 - Stripling , et al. August 4, 2	2009-08-04
Roller Drive and Roller Transportation Device App 20090166157 - Kratz; Hans-Peter ; et al.	2009-07-02
Method of Fabricating Self Aligned Schotky Junctions For Semiconductors Devices App 20080299715 - Muller; Markus	2008-12-04
Robust Remote Reset For Networks App 20080212493 - Lenz; Dominik ; et al.	2008-09-04
Hollow fiber module Grant 7,410,580 - Koch , et al. August 12, 2	2008-08-12
Airframe structure of an aircraft or spacecraft App 20080173765 - Muller; Markus ; et al.	2008-07-24
Dual Gate Cmos Fabrication App 20080169511 - Muller; Markus ; et al.	2008-07-17
Vehicle armor Grant 7,357,060 - Muller , et al. April 15, 2	2008-04-15
Embroidery module for a free-arm sewing machine Grant 7,328,665 - Konig , et al. February 12, 2	2008-02-12
Method for Chromatographic Separation of a Nucleic Acid Mixture App 20070275920 - Muller; Markus ; et al.	2007-11-29
Embroidery Module For A Free-arm Sewing Machine App 20070101917 - Konig; Michael ; et al.	2007-05-10
Frequency division Grant 7,167,685 - Kakerow , et al. January 23, 2	2007-01-23
Method for obtaining plasmid-dna by means of an aqueous biphasic system App 20060286080 - Muller; Markus ; et al.	2006-12-21
Vehicle armor App 20060213361 - Muller; Markus ; et al.	2006-09-28
Thermal spraying apparatus and also a thermal spraying process App 20060090699 - Muller; Markus	2006-05-04
Hollow fiber module App 20060065588 - Koch; Berthold ; et al.	2006-03-30
Safety monitoring system for a people conveyor App 20060006045 - Stripling; Ralph ; et al.	2006-01-12
Frequency division App 20060003725 - Kakerow; Ralf ; et al.	2006-01-05
Ultra-fast hopping frequency synthesizer for multi-band transmission standards App 20060002501 - Muller; Markus	2006-01-05
Calibration device App 20050223513 - Mau, Peter ; et al.	2005-10-13
Arc spraying method Grant 6,479,165 - Fischer , et al. November 12, 2	2002-11-12
Plasma spraying apparatus Grant 6,386,140 - Muller , et al. May 14, 2	2002-05-14
Cylinder liner for combustion engines and manufacturing method App 20010037786 - Fischer, Manfred ; et al.	2001-11-08
Arc sparying method App 20010033942 - Fischer, Manfred ; et al.	2001-10-25
Method of making a cylinder liner Grant 6,182,629 - Gobbels , et al. February 6, 2	2001-02-06
Nozzle for use in a torch head of a plasma torch apparatus Grant 5,897,059 - Muller April 27, 1	1999-04-27
Plasma spray gun for internal coatings Grant 4,661,682 - Gruner , et al. April 28, 1	1987-04-28