Assignee
RICHDEL
11 granted patents·539 citations·filing 1974–1981
Top patents by PatentIndex Score
11 records- 0196US4505450ASolenoid-operated pilot-actuated valveRICHDEL·Filed 1981·Granted Mar 19, 1985·82 cites·2 claims
- 0296US4398562AMotorized diverter valveRICHDEL·Filed 1981·Granted Aug 16, 1983·144 cites·5 claims
- 0396US4135696APilot operated diaphragm valveRICHDEL·Filed 1976·Granted Jan 23, 1979·111 cites·1 claims
- 0488US4180236ANormally-open valve assembly with solenoid-operated pilotRICHDEL·Filed 1976·Granted Dec 25, 1979·47 cites·3 claims
- 0586US4012673ATiming valve control systemRICHDEL·Filed 1975·Granted Mar 15, 1977·42 cites·12 claims
- 0684US4191166ASolar heat systemRICHDEL·Filed 1977·Granted Mar 4, 1980·45 cites·7 claims
- 0777US4230142AVent/vacuum breaker float valve assemblyRICHDEL·Filed 1978·Granted Oct 28, 1980·33 cites·3 claims
- 0852US4097763AElectric programmerRICHDEL·Filed 1977·Granted Jun 27, 1978·7 cites·3 claims
- 0946US4195621ASolid state differential temperature regulator for a solar heating systemRICHDEL·Filed 1977·Granted Apr 1, 1980·14 cites·3 claims
- 1044US3987430AProgrammed control unitRICHDEL·Filed 1974·Granted Oct 19, 1976·8 cites·6 claims
- 1140US4269229ASolar heat systemRICHDEL·Filed 1979·Granted May 26, 1981·6 cites·2 claims
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Counts cover granted patents and pending applications in the PatentIndex corpus. How scoring works →