Inventor

Rolf Frech

Inventor

Weissach, DE

Overview

1992–2011

Patent span

Performing operations

Primary field (CPC B)

Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.

B60Kprimary

B60KArrangement or mounting of propulsion units or of transmissions in vehicles13%

B60LPropulsion of electrically-propelled vehicles13%

B60TVehicle brake control systems or parts thereof13%

B60WConjoint control of vehicle sub-units of different type or different function13%

F01LCyclically operating valves for machines or engines13%

F02BInternal-combustion piston engines13%

F16HGearing13%

Y02TClimate change mitigation technologies related to transportation13%

PatentTitleYear

Assembled from patent assignee/location history and declaration credentials.

1992–2011Patents assigned to PORSCHE AG (2)· patent assignee history

1992Patents assigned to HYDRAULIK RING GMBH (1)· patent assignee history

1992Based in Weissach-Flacht, DE· patent location history

2011Based in Weissach, DE· patent location history

Assignee and location history derived from the patent record.

Assignees

Assignee	Patents	Span
PORSCHE AG	2	1992–2011
HYDRAULIK RING GMBH	1	1992

Locations

Location	Patents	Span
Weissach, DE	1	2011
Weissach-Flacht, DE	1	1992