Inventor
ZIRNHELD RICHARD A
US6 patents
⚠️ This page may combine multiple inventors who share the name “ZIRNHELD RICHARD A”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
GEN MOTORS CORP
3 patentsUS5254968AOct 19, 1993
Electrically conductive plastic speed control resistor for an automotive blower motor
GEN MOTORS CORP22 citations90
US5291174AMar 1, 1994
Ceramic substrate blower motor resistor array
GEN MOTORS CORP14 citations70
US4864915ASep 12, 1989
Vacuum operated actuator
GEN MOTORS CORP5 citations60