Inventor · disambiguated record
Donald Jack Birchall
Also filed as: BIRCHALL DONALD J · BIRCHALL DONALD JACK
4 granted patents·155 citations·filing 1974–1977
79Inventor score
Top patents by PatentIndex Score
4 records- 0192US3952234APressure transducersBIRCHALL DONALD JACK·Filed 1974·Granted Apr 20, 1976·94 cites·6 claims
- 0284US4075525APiezoelectric accelerometer transducerBIRCHALL DONALD JACK·Filed 1976·Granted Feb 21, 1978·34 cites·6 claims
- 0373US3979739AApparatus for the detection of vibration in rotating machineryBIRCHALL DONALD JACK·Filed 1975·Granted Sep 7, 1976·24 cites·6 claims
- 0425US4157510AElectronic instrument amplifierBIRCHALL DONALD J·Filed 1977·Granted Jun 5, 1979·3 cites·5 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →