Hoffjann; Claus

Patent Applications and Registrations

Patent applications and USPTO patent grants for Hoffjann; Claus.The latest application filed is for "bipolar plate for use in a fuel cell stack".

Company Profile

8.64.66

Hoffjann; Claus - Hamburg DE
Hoffjann; Claus - Neu Wulmstorf DE
Hoffjann; Claus - Wulmstorf DE

*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
Auxiliary power system for an airplane and an airplane with such an auxiliary power system Grant 11,158,874 - Hoffjann , et al. October 26, 2	2021-10-26
Bipolar Plate For Use In A Fuel Cell Stack App 20200313203 - Wolff; Christian ; et al.	2020-10-01
Supply system and method for providing electric energy, oxygen depleted air and water as well and aircraft having such a supply system Grant 10,632,333 - Hoffjann , et al.	2020-04-28
Supply system for providing at least oxygen depleted air and water in a vehicle and aircraft having such a supply system Grant 10,583,935 - Hoffjann	2020-03-10
Fuel Cell System For An Aircraft App 20200058947 - HOFFJANN; Claus ; et al.	2020-02-20
Auxiliary Power System For An Airplane And An Airplane With Such An Auxiliary Power System App 20190393531 - Hoffjann; Claus ; et al.	2019-12-26
Fuel cell system, a fire fighting system, and an aircraft Grant 10,516,175 - Hoffjann , et al. Dec	2019-12-24
Auxiliary power system for an airplane and an airplane with such an auxiliary power system Grant 10,446,863 - Hoffjann , et al. Oc	2019-10-15
Aircraft having a redundant and efficient bleed system Grant 10,293,945 - Hoffjann , et al.	2019-05-21
Supply System And Method For Providing Electric Energy, Oxygen Depleted Air And Water As Well And Aircraft Having Such A Supply System App 20190099628 - Hoffjann; Claus ; et al.	2019-04-04
Supply system and method for providing electric energy, oxygen depleted air and water as well and aircraft having such a supply system Grant 10,173,086 - Hoffjann , et al. J	2019-01-08
Fuel Cell System, A Fire Fighting System, And An Aircraft App 20180102557 - Hoffjann; Claus ; et al.	2018-04-12
Engine for propelling an aircraft and aircraft having at least one engine and at least one hydrogen tank Grant 9,897,041 - Hoffjann , et al. February 20, 2	2018-02-20
Aircraft Having A Redundant And Efficient Bleed System App 20180037327 - HOFFJANN; Claus ; et al.	2018-02-08
Fuel cell system, a fire fighting system, and an aircraft Grant 9,882,227 - Hoffjann , et al. January 30, 2	2018-01-30
Fuel cell system, use of a fuel cell system and aircraft with a fuel cell system Grant 9,673,460 - Kurre , et al. June 6, 2	2017-06-06
Drive unit, method for providing power, and use of a drive unit Grant 9,541,001 - Steinwandel , et al. January 10, 2	2017-01-10
Supply System For Providing At Least Oxygen Depleted Air And Water In A Vehicle And Aircraft Having Such A Supply System App 20160362191 - Hoffjann; Claus	2016-12-15
Auxiliary Power System For An Airplane And An Airplane With Such An Auxiliary Power System App 20160181641 - Hoffjann; Claus ; et al.	2016-06-23
Method for manufacturing a solid oxide fuel cell element by layer-wise buildup and solid oxide fuel cell element Grant 9,350,037 - Steinwandel , et al. May 24, 2	2016-05-24
Fuel Cell System, A Fire Fighting System, And An Aircraft App 20160064751 - Hoffjann; Claus ; et al.	2016-03-03
Supply System And Method For Providing Electric Energy, Oxygen Depleted Air And Water As Well And Aircraft Having Such A Supply System App 20160030781 - Hoffjann; Claus ; et al.	2016-02-04
Tank System For The Cryogenic Storage Of Hydrogen, And Aircraft With A Tank System For The Cryogenic Storage Of Hydrogen App 20150336680 - Schumacher; Markus ; et al.	2015-11-26
Engine For Propelling An Aircraft And Aircraft Having At Least One Engine And At Least One Hydrogen Tank App 20150308383 - Hoffjann; Claus ; et al.	2015-10-29
System for drying the exhaust gases from a fuel cell system using the existing liquid hydrogen as a heat sink Grant 9,130,204 - Hoffjann , et al. September 8, 2	2015-09-08
Fuel Cell System, Method For Operating A Fuel Cell And Vehicle With Such A Fuel Cell System App 20150017557 - HOFFJANN; Claus ; et al.	2015-01-15
System and process for the reduction of harmful substances in engine exhaust gases Grant 8,910,484 - Hoffjann , et al. December 16, 2	2014-12-16
Tank module for a structurally integrated vacuum sewage system for aircraft Grant 8,888,041 - Hoffjann , et al. November 18, 2	2014-11-18
Cooling assembly for cooling a thermal body for an aircraft Grant 8,869,543 - Hoffjann , et al. October 28, 2	2014-10-28
Water system for a vehicle and method for reducing germs in a water system Grant 8,858,878 - Risch , et al. October 14, 2	2014-10-14
Protection of water conduits against frost Grant 8,820,362 - Roederer , et al. September 2, 2	2014-09-02
Fuel cell system for extinguishing fires Grant 8,813,860 - Bleil , et al. August 26, 2	2014-08-26
Method For Manufacturing A Solid Oxide Fuel Cell Element By Layer-wise Buildup And Solid Oxide Fuel Cell Element App 20140051014 - Steinwandel; Jurgen ; et al.	2014-02-20
Drive Unit, Method For Providing Power, And Use Of A Drive Unit App 20140047814 - Steinwandel; Jurgen ; et al.	2014-02-20
Hybrid drive for an aircraft Grant 8,640,439 - Hoffjann , et al. February 4, 2	2014-02-04
Fuel cell system with suction operation for an aircraft Grant 8,623,559 - Frahm , et al. January 7, 2	2014-01-07
Refueling Platform For Filling A Vehicle Tank With Liquid Hydrogen App 20130312871 - HOFFJANN; Claus ; et al.	2013-11-28
Fuel Cell System, Use Of A Fuel Cell System And Aircraft With A Fuel Cell System App 20130288160 - Kurre; Jens-Dietrich ; et al.	2013-10-31
Fire protection with fuel cell exhaust air Grant 8,567,516 - Bleil , et al. October 29, 2	2013-10-29
Double-walled floor segment for a means of locomotion for accommodating system components Grant 8,556,211 - Hoffjann , et al. October 15, 2	2013-10-15
Water System For A Vehicle And Method For Reducing Germs In A Water System App 20130094994 - RISCH; Timo ; et al.	2013-04-18
Protection Of Water Conduits Against Frost App 20130048128 - Roederer; Karsten ; et al.	2013-02-28
Hydride fuel-cell cooler and condensate cooler for aircraft Grant 8,372,554 - Hoffjann , et al. February 12, 2	2013-02-12
System for flushing a vacuum toilet and toilet cover for a system of this type Grant 8,341,773 - Hoffjann , et al. January 1, 2	2013-01-01
Fire Protection With Fuel Cell Exhaust Air App 20120292058 - Bleil; Julika ; et al.	2012-11-22
Fire protection with fuel cell exhaust air Grant 8,256,524 - Bleil , et al. September 4, 2	2012-09-04
System For Drying The Exhaust Gases From A Fuel Cell System Using The Existing Liquid Hydrogen As A Heat Sink App 20120210747 - Hoffjann; Claus ; et al.	2012-08-23
Self-sustaining washroom for mobile use Grant 8,141,185 - Hoffjann , et al. March 27, 2	2012-03-27
Semi-autonomous central supply system for passenger seats Grant 8,034,495 - Hoffjann , et al. October 11, 2	2011-10-11
Sorting device and method for sorting goods in transit for an aircraft Grant 8,019,464 - Hoffjann , et al. September 13, 2	2011-09-13
Water-wastewater module for aircraft Grant 7,980,513 - Hoffjann , et al. July 19, 2	2011-07-19
Supply system for the energy supply in an aircraft, aircraft and method for supplying an aircraft with energy Grant 7,954,753 - Hoffjann , et al. June 7, 2	2011-06-07
Aircraft with grey-water utilisation system Grant 7,947,164 - Hoffjann , et al. May 24, 2	2011-05-24
Use of cabin air for generation of water via exhaust gas of a fuel cell Grant 7,935,447 - Wolff , et al. May 3, 2	2011-05-03
Transfer unit Grant 7,926,505 - Hoffjann , et al. April 19, 2	2011-04-19
System And Process For The Reduction Of Harmful Substances In Engine Exhaust Gases App 20110048026 - Hoffjann; Claus ; et al.	2011-03-03
Rotable fuel cell system Grant 7,807,315 - Hoffjann , et al. October 5, 2	2010-10-05
Fuel Cell System With Suction Operation For An Aircraft App 20100221642 - Frahm; Lars ; et al.	2010-09-02
Device for producing water on board of an airplane Grant 7,767,359 - Hoffjann , et al. August 3, 2	2010-08-03
Safety system for reducing the explosion risk of a fuel tank Grant 7,759,011 - Hoffjann , et al. July 20, 2	2010-07-20
Apparatus for preparing meals Grant 7,739,947 - Hoffjann , et al. June 22, 2	2010-06-22
Autonomous passenger seat Grant 7,731,126 - Hoffjann , et al. June 8, 2	2010-06-08
Drain mast connector Grant 7,731,127 - Hoffjann , et al. June 8, 2	2010-06-08
Double-Walled Floor Segment for a Means of Locomotion for Accommodating System Components App 20100127123 - Hoffjann; Claus ; et al.	2010-05-27
Vacuum Toilet System For Waste Water Transport And Waste Water Collection In An Aircraft App 20100116935 - Rieger; Ulrich ; et al.	2010-05-13
Combined fuel cell system Grant 7,659,015 - Hoffjann , et al. February 9, 2	2010-02-09
Hydride Fuel-cell Cooler And Condensate Cooler For Aircraft App 20100028741 - Hoffjann; Claus ; et al.	2010-02-04
Cooling assembly for cooling a thermal body for an aircraft App 20100024438 - Hoffjann; Claus ; et al.	2010-02-04
Tank module for a structurally integrated vacuum sewage system for aircraft App 20100019088 - Hoffjann; Claus ; et al.	2010-01-28
Fire Protection With Fuel Cell Exhaust Air App 20100018723 - Bleil; Julika ; et al.	2010-01-28
Aircraft With Modular Structure App 20100012782 - Hoffjann; Claus ; et al.	2010-01-21
Water treatment for an aircraft Grant 7,648,628 - Hoffjann , et al. January 19, 2	2010-01-19
Fuel Cell System for Extinguishing Fires App 20090321090 - Bleil; Julika ; et al.	2009-12-31
System for Flushing a Vacuum Toilet and Toilet Cover for a System of This Type App 20090300834 - Hoffjann; Claus ; et al.	2009-12-10
Aircraft having integrated electrochemical supply system Grant 7,629,068 - Hoffjann , et al. December 8, 2	2009-12-08
Hybrid drive for an aircraft App 20090293494 - Hoffjann; Claus ; et al.	2009-12-03
Aeroplane drink dispenser Grant 7,592,084 - Hoffjann , et al. September 22, 2	2009-09-22
Fuel Cell System for Supplying Aircraft App 20090214900 - Hoffjann; Claus ; et al.	2009-08-27
Apparatus for producing water onboard of a craft driven by a power plant Grant 7,550,218 - Hoffjann , et al. June 23, 2	2009-06-23
Drain system for an aircraft Grant 7,546,981 - Hoffjann , et al. June 16, 2	2009-06-16
Fuel Cell System for the Supply of Drinking Water and Oxygen App 20080299432 - Hoffjann; Claus ; et al.	2008-12-04
Arrangement and method for the generation of water on board an aircraft Grant 7,431,238 - Hoffjann , et al. October 7, 2	2008-10-07
Combined Cooling And Heating System App 20080178609 - Hoffjann; Claus ; et al.	2008-07-31
Use Of Cabin Air For Generation Of Water Via Exhaust Gas Of A Fuel Cell App 20080179050 - Wolff; Christian ; et al.	2008-07-31
Autonomous Passenger Seat App 20080149770 - Hoffjann; Claus ; et al.	2008-06-26
Sorting Device And Method For Sorting Goods In Transit For An Aircraft App 20080128248 - Hoffjann; Claus ; et al.	2008-06-05
Self-sustaining washroom for mobile use App 20080127411 - Hoffjann; Claus ; et al.	2008-06-05
Semi-autonomous Central Supply System For Passenger Seats App 20080038597 - Hoffjann; Claus ; et al.	2008-02-14
Supply System for the Energy Supply in an Aircraft, Aircraft and Method for Supplying an Aircraft with Energy App 20080001026 - Hoffjann; Claus ; et al.	2008-01-03
Combined Fuel Cell System App 20070172707 - Hoffjann; Claus ; et al.	2007-07-26
Aeroplane Drink Dispenser App 20070119863 - Hoffjann; Claus ; et al.	2007-05-31
Aeroplane Steam-Bath Facility App 20070111066 - Hoffjann; Claus ; et al.	2007-05-17
Apparatus For Preparing Meals App 20070110861 - Hoffjann; Claus ; et al.	2007-05-17
Safety System For Reducing The Explosion Risk Of A Fuel Tank App 20070111060 - Hoffjann; Claus ; et al.	2007-05-17
Aircraft with grey-water utilisation system App 20070102370 - Hoffjann; Claus ; et al.	2007-05-10
Fuel cell system and method with increased efficiency and reduced exhaust emissions Grant 7,208,239 - Hoffjann , et al. April 24, 2	2007-04-24
Water-wastewater module for aircraft App 20070069078 - Hoffjann; Claus ; et al.	2007-03-29
Transfer unit App 20070068575 - Hoffjann; Claus ; et al.	2007-03-29
Method for using water in the processing of fuels for high temperature fuel cells Grant 7,172,702 - Hoffjann , et al. February 6, 2	2007-02-06
Drain Mast Connector App 20060273224 - Hoffjann; Claus ; et al.	2006-12-07
Arrangement And Method For The Generation Of Water On Board An Aircraft App 20060251933 - HOFFJANN; Claus ; et al.	2006-11-09
Method and apparatus for processing and re-using of gray water for flushing toilets Grant 7,118,677 - Hoffjann , et al. October 10, 2	2006-10-10
Arrangement and method for the generation of water on board an aircraft Grant 7,108,229 - Hoffjann , et al. September 19, 2	2006-09-19
Fuel cell system App 20060099477 - Hoffjann; Claus ; et al.	2006-05-11
Method for treating and distributing water generated in a self-contained water using unit Grant 7,036,314 - Hoffjann , et al. May 2, 2	2006-05-02
Drain system for an aircraft App 20060060712 - Hoffjann; Claus ; et al.	2006-03-23
Aircraft having integrated electrochemical supply system App 20060054740 - Hoffjann; Claus ; et al.	2006-03-16
Water treatment for an aircraft App 20060011525 - Hoffjann; Claus ; et al.	2006-01-19
Electrochemical reactor for aircraft and method for operating the electrochemical reactor App 20050271917 - Hoffjann, Claus ; et al.	2005-12-08
Device for producing water on board of an airplane App 20050266287 - Hoffjann, Claus ; et al.	2005-12-01
Arrangement and method for the generation of water on board an aircraft App 20050211842 - Hoffjann, Claus ; et al.	2005-09-29
Method for using water in the processing of fuels for high temperature fuel cells App 20040060869 - Hoffjann, Claus ; et al.	2004-04-01
Method and apparatus for processing and re-using of gray water for flushing toilets App 20040045910 - Hoffjann, Claus ; et al.	2004-03-11
Apparatus for producing water onboard of a craft driven by a power plant App 20040040312 - Hoffjann, Claus ; et al.	2004-03-04
Fuel cell system and method with increased efficiency and reduced exhaust emissions App 20040043276 - Hoffjann, Claus ; et al.	2004-03-04
Method for treating and distributing water generated in a self-contained water using unit App 20040038089 - Hoffjann, Claus ; et al.	2004-02-26
Apparatus for compacting and draining mixed waste in passenger transport vehicles Grant 6,640,701 - Hoffjann , et al. November 4, 2	2003-11-04
Apparatus for compacting and draining mixed waste in passenger transport vehicles App 20020185016 - Hoffjann, Claus ; et al.	2002-12-12

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