Inventor
Josef Sonntag
Inventor
Kirchheim, DE
Overview
14→
Patents
1997–2010
Patent span
General tagging of new technological developments
Primary field (CPC Y)
Patents· 14 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
Y02Eprimary
Y02EReduction of greenhouse gas [ghg] emissions, related to energy generation, transmission or distribution28%
H01MProcesses or means, e.g. batteries, for the direct conversion of chemical energy into electrical energy24%
B60LPropulsion of electrically-propelled vehicles18%
Y02TClimate change mitigation technologies related to transportation18%
G01NInvestigating or analysing materials by determining their chemical or physical properties4%
G01RMeasuring electric variables4%
H02JElectric power networks2%
H10WGeneric packages, interconnections, connectors or other constructional details of devices covered by class h102%
PatentTitleYear
7,709,977'Method and arrangement for controlling a switching connection between the electrical outputs of a fuel cell and an isolated electrical network'20107,477,049'Method for controlling the quality of the coolant for fuel cell systems'20097,422,809'Method and apparatus for regulating electrical power output of a fuel cell system'20087,057,306'Fuel cell and control unit in a detachable housing'20066,830,843'Method for controlling the quality of the coolant for fuel cell systems'20046,777,909'Device for generating electric energy in a motor vehicle by means of a fuel cell and method for operating such a device'20046,577,026'Circuit arrangement for supplying electric power to a network comprising a fuel cell and an accumulator system'20036,555,260'Fuel cell system having a fuel cell stack with integrated polarity reversal protection diode'20036,531,876'Apparatus for voltage measurement'20035,877,600'Process for determining a desired load value for a load-dependent current generating system in an electric vehicle'19995,794,732'Apparatus and method for starting a fuel cell vehicle'19985,780,981'Process for dynamically adjusting the power for a vehicle having a fuel cell'19985,760,488'Vehicle having a fuel cell or battery energy supply network'19985,646,852'Method and device for vehicle fuel cell dynamic power control'1997Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
1997–1999Patents assigned to DAIMLER BENZ AG (5)· patent assignee history
1997–1999Based in Illertissen, DE· patent location history
2003–2004Patents assigned to BALLARD POWER SYSTEMS (4)· patent assignee history
2003–2010Based in Kirchheim, DE· patent location history
2003Based in Senden, DE· patent location history
2004Patents assigned to BALLARD POWER SYSTEM AG (1)· patent assignee history
2004Based in Kirchhein, DE· patent location history
2006–2010Patents assigned to NUCELLSYS GMBH (4)· patent assignee history
2009Based in Kirhheim, DE· patent location history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| DAIMLER BENZ AG | 5 | 1997–1999 |
| BALLARD POWER SYSTEMS | 4 | 2003–2004 |
| NUCELLSYS GMBH | 4 | 2006–2010 |
| BALLARD POWER SYSTEM AG | 1 | 2004 |
Locations
| Location | Patents | Span |
|---|---|---|
| Kirchheim, DE | 6 | 2003–2010 |
| Illertissen, DE | 5 | 1997–1999 |
| Kirhheim, DE | 1 | 2009 |
| Kirchhein, DE | 1 | 2004 |
| Senden, DE | 1 | 2003 |