Inventor · disambiguated record
Richard Hellinga
Also filed as: HELLINGA RICHARD · HELLINGA RICHARD J
11 granted patents·370 citations·filing 1991–2018
91Inventor score
Top patents by PatentIndex Score
11 records- 0197US5982126APower closure panel control apparatusMULTIMATIC INC·Filed 1995·Granted Nov 9, 1999·153 cites·19 claims
- 0291US6883275B2Method and apparatus for controlling the speed of closing of a movable elementMULTIMATIC INC·Filed 2002·Granted Apr 26, 2005·42 cites·10 claims
- 0383US6215681B1Bus bar heat sinkAGILE SYSTEMS INC·Filed 1999·Granted Apr 10, 2001·59 cites·22 claims
- 0476US5299143ADisplacement detecting apparatusKAYABA INDUSTRY CO LTD·Filed 1991·Granted Mar 29, 1994·36 cites·15 claims
- 0561US8217755B2Vehicle with controlled door operationMARTIN ROGER J·Filed 2008·Granted Jul 10, 2012·7 cites·9 claims
- 0658US8375635B2Apparatus for opening and closing overhead sectional doorsHELLINGA RICHARD·Filed 2009·Granted Feb 19, 2013·3 cites·17 claims
- 0758US5331258ASynchronous-rectification type control for direct current motors and method of makingSOLARIA RESEARCH ENTERPRISES L·Filed 1992·Granted Jul 19, 1994·41 cites·12 claims
- 0855US5640304APower electronic device mounting apparatusAGILE SYSTEMS INC·Filed 1995·Granted Jun 17, 1997·27 cites·5 claims
- 0949US11374510B2Method and apparatus for controlling an electric motorSEVCON LTD·Filed 2017·Granted Jun 28, 2022·0 cites·3 claims
- 1044US7213372B2Method for controlling the speed of closing of a movable elementMULTIMATIC INC·Filed 2004·Granted May 8, 2007·2 cites·8 claims
- 1143US11370307B2Method and apparatus for controlling an electric motorSEVCON LTD·Filed 2018·Granted Jun 28, 2022·0 cites·16 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →