Inventor · disambiguated record
Douglas W. Calder
Also filed as: CALDER DOUGLAS W
3 granted patents·32 citations·filing 1992–1992
69Inventor score
Technology areasH03K
Files withSQUARE D CO2
Top patents by PatentIndex Score
3 records- 0162US5463333AProximity switchesSQUARE D CO·Filed 1992·Granted Oct 31, 1995·20 cites·9 claims
- 0236US5552644AProximity switchesFiled 1992·Granted Sep 3, 1996·7 cites·8 claims
- 0334US5463354AProximity switches including long tail pair with emitter follower feedbackSQUARE D CO·Filed 1992·Granted Oct 31, 1995·5 cites·8 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →