Inventor · disambiguated record
Darrell P. Ophaug
Also filed as: OPHAUG DARRELL P
7 granted patents·159 citations·filing 1975–1998
87Inventor score
Files withSQUARE D CO7
Top patents by PatentIndex Score
7 records- 0190US4013929AMultiple duty components of a ground fault receptacleSQUARE D CO·Filed 1975·Granted Mar 22, 1977·53 cites·2 claims
- 0288US4084203AGround fault receptacleSQUARE D CO·Filed 1976·Granted Apr 11, 1978·46 cites·8 claims
- 0364US4921083AClutch module with predetermined torqueSQUARE D CO·Filed 1989·Granted May 1, 1990·15 cites·4 claims
- 0461US4912380AField installable electrical operator for a circuit breakerSQUARE D CO·Filed 1989·Granted Mar 27, 1990·12 cites·11 claims
- 0556US5910757APhase barrier for use in a multiphase circuit breakerSQUARE D CO·Filed 1998·Granted Jun 8, 1999·17 cites·14 claims
- 0640US5005880ASelf-sealing snap-in receptacle, especially for circuit breaker cover retentionSQUARE D CO·Filed 1989·Granted Apr 9, 1991·12 cites·29 claims
- 0732US4041423AUndervoltage release for circuit breakerSQUARE D CO·Filed 1975·Granted Aug 9, 1977·4 cites·14 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →