Inventor
Ulrich Dumke
Inventor
Ruesselsheim, DE
Overview
Patents· 4 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
H01Mprimary
H01MProcesses or means, e.g. batteries, for the direct conversion of chemical energy into electrical energy22%
Y02EReduction of greenhouse gas [ghg] emissions, related to energy generation, transmission or distribution22%
F04DNon-positive-displacement pumps17%
F04CRotary-piston, or oscillating-piston, positive-displacement machines for liquids11%
H02HEmergency protective circuit arrangements11%
Y02PClimate change mitigation technologies in the production or processing of goods11%
G01NInvestigating or analysing materials by determining their chemical or physical properties6%
PatentTitleYear
9,331,350'Fuel cell system including diagnostic technique for unbalanced compressor'20168,771,891'Diagnostic system for unbalanced motor shafts for high speed compressor'20148,105,720'Humidity sensing device for use in fuel cell systems'20126,830,842'Hydrogen purged motor for anode re-circulation blower'2004Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
2004Patents assigned to GEN MOTORS CORP (1)· patent assignee history
2004–2016Based in Ruesselsheim, DE· patent location history
2012–2014Patents assigned to DUMKE ULRICH (2)· patent assignee history
2012Patents assigned to GM Global Technologies LLC (1)· patent assignee history
2014–2016Patents assigned to GM GLOBAL TECH OPERATIONS INC (2)· patent assignee history
2014Patents assigned to ELGAS BERND PETER (1)· patent assignee history
2014Based in Russelsheim, DE· patent location history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| DUMKE ULRICHself | 2 | 2012–2014 |
| GM GLOBAL TECH OPERATIONS INC | 2 | 2014–2016 |
| ELGAS BERND PETER | 1 | 2014 |
| GEN MOTORS CORP | 1 | 2004 |
| GM Global Technologies LLC | 1 | 2012 |
Locations
| Location | Patents | Span |
|---|---|---|
| Ruesselsheim, DE | 3 | 2004–2016 |
| Russelsheim, DE | 1 | 2014 |