Inventor
Martin Volkening
Inventor
London, CA
Overview
Patents· 6 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
H02Kprimary
H02KDynamo-electric machines67%
H02PControl or regulation of electric motors, electric generators or dynamo-electric converters33%
PatentTitleYear
7,112,907'Flux modifier for a permanent magnet brush-type motor using wound field coils combined with permanent magnets'20067,105,969'Two speed electric motor with link wound dual-commutator and dual-armature winding'20066,995,490'Flux modifier for a permanent magnet brush-type motor using wound field coils combined with permanent magnets'20066,597,135'Combination of resistor and PWM electronic device to control speed of a permanent magnet DC motor'20036,590,356'Combination of resistor and PWM electronic device to control speed of a permanent magnet DC motor'20036,439,855'Direct current electric motor which eliminates outer case and places brushes and chokes in space efficient locations'2002Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
2002Patents assigned to SIEMENS AUTOMOTIVE INC (1)· patent assignee history
2002–2006Based in London, CA· patent location history
2003–2006Patents assigned to SIEMENS VDO AUTOMOTIVE INC (5)· patent assignee history
2003Based in Ontario, CA· patent location history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| SIEMENS VDO AUTOMOTIVE INC | 5 | 2003–2006 |
| SIEMENS AUTOMOTIVE INC | 1 | 2002 |
Locations
| Location | Patents | Span |
|---|---|---|
| London, CA | 5 | 2002–2006 |
| Ontario, CA | 1 | 2003 |