Inventor · disambiguated record
Larry A. Vyvial
Also filed as: VYVIAL LARRY · VYVIAL LARRY A
5 granted patents·180 citations·filing 1976–2005
82Inventor score
Top patents by PatentIndex Score
5 records- 0194US4213480AManual override for hydraulic gate valve actuatorsACF IND INC·Filed 1978·Granted Jul 22, 1980·110 cites·14 claims
- 0262US5435520ABackseat assembly for an expanding gate valveCOOPER IND INC·Filed 1994·Granted Jul 25, 1995·25 cites·15 claims
- 0360US4718679ALockdown ring assembly for wellhead sealCOOPER IND INC·Filed 1987·Granted Jan 12, 1988·33 cites·5 claims
- 0458US7300035B2Valve, actuator and control system thereforCAMERON INT CORP·Filed 2005·Granted Nov 27, 2007·3 cites·24 claims
- 0545US4055325ALubricant pocket for pressed in gate valve seatACF IND INC·Filed 1976·Granted Oct 25, 1977·9 cites·5 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →