Assignee
FISHER CONTROLS CO
US·17 granted patents·625 citations·filing 1974–1983
Top patents by PatentIndex Score
17 records- 0195US4402485AEccentrically nested tube gas line silencerFISHER CONTROLS CO·Filed 1981·Granted Sep 6, 1983·74 cites·25 claims
- 0295US4005848ABidirectional pressure-assisted valve sealFISHER CONTROLS CO·Filed 1975·Granted Feb 1, 1977·67 cites·9 claims
- 0390US4231546AHigh-temperature bidirectional metal sealFISHER CONTROLS CO·Filed 1978·Granted Nov 4, 1980·53 cites·5 claims
- 0487US4108210AControl valve trim assemblyFISHER CONTROLS CO·Filed 1976·Granted Aug 22, 1978·97 cites·6 claims
- 0585US4137934AValve constructionFISHER CONTROLS CO·Filed 1977·Granted Feb 6, 1979·39 cites·3 claims
- 0685US3951168ACurtain valveFISHER CONTROLS CO·Filed 1974·Granted Apr 20, 1976·45 cites·3 claims
- 0783US4362499ACombustion control system and methodFISHER CONTROLS CO·Filed 1980·Granted Dec 7, 1982·44 cites·4 claims
- 0879US3960364AHigh pressure tight shutoff valve sealFISHER CONTROLS CO·Filed 1974·Granted Jun 1, 1976·47 cites·6 claims
- 0974US4559832APiezoelectric pressure frequency sensorFISHER CONTROLS CO·Filed 1983·Granted Dec 24, 1985·29 cites·25 claims
- 1072US4295489APilot-operated back pressure regulatorFISHER CONTROLS CO·Filed 1979·Granted Oct 20, 1981·31 cites·2 claims
- 1171US4148458ATight shutoff butterfly valveFISHER CONTROLS CO·Filed 1977·Granted Apr 10, 1979·24 cites·2 claims
- 1266US4350047AVortex-shedding flowmeter having two bluff bodiesFISHER CONTROLS CO·Filed 1980·Granted Sep 21, 1982·24 cites·7 claims
- 1364US4041973AQuick change valve trim assemblyFISHER CONTROLS CO·Filed 1975·Granted Aug 16, 1977·17 cites·5 claims
- 1455US4004601AQuick closing emergency valveFISHER CONTROLS CO·Filed 1975·Granted Jan 25, 1977·19 cites·17 claims
- 1553US4175283ABatch option moduleFISHER CONTROLS CO·Filed 1978·Granted Nov 20, 1979·12 cites·3 claims
- 1629US3991903AQuick-disconnect valve closure structureFISHER CONTROLS CO·Filed 1975·Granted Nov 16, 1976·1 cites·6 claims
- 1728US4453559APneumatic controllerFISHER CONTROLS CO·Filed 1981·Granted Jun 12, 1984·2 cites·12 claims
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