Inventor

Ralf Strumpler

Inventor

Gebenstorf, CH

Overview

24→

Patents

1993–2009

Patent span

Electricity

Primary field (CPC H)

Patents· 24 as inventor

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

H01Cprimary

H01CResistors35%

H01HElectric switches16%

H02HEmergency protective circuit arrangements11%

Y10TTechnical subjects covered by former us classification8%

Y10STechnical subjects covered by former uspc cross-reference art collections [xracs] and digests5%

B33YAdditive manufacturing, i.e. manufacturing of three-dimensional [3d] objects by additive deposition, additive agglomeration or additive layering, e.g. by 3d printing, stereolithography or selective laser sintering3%

F01DNon-positive displacement machines or engines, e.g. steam turbines3%

F02BInternal-combustion piston engines3%

F04DNon-positive-displacement pumps3%

F05DIndexing scheme for aspects relating to non-positive-displacement machines or engines, gas-turbines or jet-propulsion plants3%

PatentTitleYear

7,524,166'Compressor cleaning system'2009 7,109,560'Micro-electromechanical system and method for production thereof'2006 6,932,928'Method of producing a PTC-resistor device'2005 6,743,989'Microswitch'2004 6,738,246'Electrical circuit breaker for protecting against overcurrents'2004 6,628,485'Apparatus for limiting an electrical current'2003 6,613,993'Microrelay working parallel to the substrate'2003 6,563,683'Electrical switchgear'2003 6,515,570'Fuse with overstoichiometric amount of oxidant'2003 6,492,799'Monitor circuit for a current limiting device'2002 6,469,611'Non-linear resistance with varistor behavior and method for the production thereof'2002 6,429,766'Electrical device comprising a PTC polymer element for overcurrent fault and short-circuit fault protection'2002 6,396,383'Protective element'2002 6,259,349'Electrical component with a constriction in a PTC polymer element'2001 6,157,290'Resistor element'2000 5,990,778'Current-limiting resistor having PTC behavior'1999 5,925,467'Electrically and thermally conductive plastic and use of this plastic'1999 5,861,795'Current-limiting resistor having PTC behavior'1999 5,858,533'Composite material'1999 5,602,520'Electrical resistance element and use of this resistance element in a current limiter'1997 5,416,462'Electrical resistance element'1995 5,414,403'Current-limiting component'1995 5,313,184'Resistor with PTC behavior'1994 5,248,890'Valance specific lanthanide doped optoelectronic metal fluoride semiconductor device'1993

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1993Patents assigned to FORSCHUNGSZENTRUM JUELICH GMBH (1)· patent assignee history

1993–1999Based in Baden, CH· patent location history

1994Patents assigned to ASEA BROWN BOVERI (1)· patent assignee history

1995–2009Patents assigned to ABB RESEARCH LTD (22)· patent assignee history

1999–2005Based in Gebenstorf, CH· patent location history

2006–2009Based in Erding, DE· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees

Assignee	Patents	Span
ABB RESEARCH LTD	22	1995–2009
ASEA BROWN BOVERI	1	1994
FORSCHUNGSZENTRUM JUELICH GMBH	1	1993

Locations

Location	Patents	Span
Gebenstorf, CH	16	1999–2005
Baden, CH	6	1993–1999
Erding, DE	2	2006–2009