Inventor

Wilhelm Cramer

Inventor

Sundern, DE

Overview

1986–2017

Patent span

Mechanical engineering

Primary field (CPC F)

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

F24Cprimary

F24CDomestic stoves or ranges17%

H01MProcesses or means, e.g. batteries, for the direct conversion of chemical energy into electrical energy17%

Y02EReduction of greenhouse gas [ghg] emissions, related to energy generation, transmission or distribution17%

F16KValves9%

F17CVessels for containing or storing compressed, liquefied or solidified gases9%

F23NRegulating or controlling combustion9%

Y10TTechnical subjects covered by former us classification9%

LOC034%

LOC094%

Y02PClimate change mitigation technologies in the production or processing of goods4%

PatentTitleYear

Assembled from patent assignee/location history and declaration credentials.

1986–2005Patents assigned to HOPPECKE ZOELLNER SOHN ACCU (4)· patent assignee history

1986–2005Based in Brilon, DE· patent location history

1990–1992Patents assigned to CRAMER GMBH & CO KG (3)· patent assignee history

1990–1998Based in Sundern, DE· patent location history

2003–2004Based in Brilon-Messinghausen, DE· patent location history

2009Patents assigned to RECKITT BENCKISER NV (2)· patent assignee history

2009Based in Bestwig/Nuttlar, DE· patent location history

2014–2017Patents assigned to CAVAGNA GROUP SPA (2)· patent assignee history

2014–2017Patents assigned to TOPTRON GMBH (2)· patent assignee history

2014–2017Based in Menden, DE· patent location history

Assignee and location history derived from the patent record.

Assignees

Locations