Inventor · disambiguated record
Robert K. Hoffman
Also filed as: HOFFMAN ROBERT K
5 granted patents·51 citations·filing 1977–1985
80Inventor score
Files withPARKER HANNIFIN CORP5
Top patents by PatentIndex Score
5 records- 0156US4082107AAutomatic drain valve for a compressed air systemPARKER HANNIFIN CORP·Filed 1977·Granted Apr 4, 1978·12 cites·7 claims
- 0253US4640309APilot operated poppet valve with speed controlPARKER HANNIFIN CORP·Filed 1985·Granted Feb 3, 1987·16 cites·3 claims
- 0351US4112968AAutomatic drain valve for a compressed air systemPARKER HANNIFIN CORP·Filed 1977·Granted Sep 12, 1978·10 cites·2 claims
- 0437US4353290APneumatic control valve and circuitPARKER HANNIFIN CORP·Filed 1979·Granted Oct 12, 1982·6 cites·11 claims
- 0537US4243072AThree position selector valvePARKER HANNIFIN CORP·Filed 1978·Granted Jan 6, 1981·7 cites·14 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →