Inventor · disambiguated record
David P. Hargraves
Also filed as: HARGRAVES DAVID P
6 granted patents·280 citations·filing 1975–1982
86Inventor score
Files withEMERSON ELECTRIC CO6
Top patents by PatentIndex Score
6 records- 0194US4467613AApparatus for and method of automatically adjusting the superheat setting of a thermostatic expansion valveEMERSON ELECTRIC CO·Filed 1982·Granted Aug 28, 1984·118 cites·9 claims
- 0290US4459819APulse controlled expansion valve and methodEMERSON ELECTRIC CO·Filed 1982·Granted Jul 17, 1984·83 cites·17 claims
- 0379US3985154AFour-way valveEMERSON ELECTRIC CO·Filed 1975·Granted Oct 12, 1976·33 cites·15 claims
- 0469US4340202AFour way valveEMERSON ELECTRIC CO·Filed 1980·Granted Jul 20, 1982·27 cites·7 claims
- 0551US4268006AModulating diaphragm valveEMERSON ELECTRIC CO·Filed 1979·Granted May 19, 1981·13 cites·7 claims
- 0639US4202373AFour way valveEMERSON ELECTRIC CO·Filed 1977·Granted May 13, 1980·6 cites·10 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →