Inventor

HELLINGA RICHARD J

JP7 patents

⚠️ This page may combine multiple inventors who share the name “HELLINGA RICHARD J”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.

MULTIMATIC INC

2 patents

US6883275B2Apr 26, 2005

Method and apparatus for controlling the speed of closing of a movable element

MULTIMATIC INC42 citations92

US7213372B2May 8, 2007

Method for controlling the speed of closing of a movable element

MULTIMATIC INC2 citations62

AGILE SYSTEMS INC

2 patents

US6215681B1Apr 10, 2001

Bus bar heat sink

AGILE SYSTEMS INC59 citations90

US5640304AJun 17, 1997

Power electronic device mounting apparatus

AGILE SYSTEMS INC27 citations85

KAYABA INDUSTRY CO LTD

1 patent

US5299143AMar 29, 1994

Displacement detecting apparatus

KAYABA INDUSTRY CO LTD36 citations89

SOLARIA RESEARCH ENTERPRISES L

1 patent

US5331258AJul 19, 1994

Synchronous-rectification type control for direct current motors and method of making

SOLARIA RESEARCH ENTERPRISES L41 citations86

MARTIN ROGER J

1 patent

US8217755B2Jul 10, 2012

Vehicle with controlled door operation

MARTIN ROGER J7 citations71