Inventor · disambiguated record
David L. Gambetta
Also filed as: GAMBETTA DAVID · GAMBETTA DAVID L
9 granted patents·1 pending application·213 citations·filing 1985–2010
89Inventor score
Top patents by PatentIndex Score
10 records- 0181US5653423AKnife gate valve with mechanically retained gate seatTECHNAFLOW INC·Filed 1996·Granted Aug 5, 1997·57 cites·2 claims
- 0280US8056882B2Gate valve with lubricated secondary sealOHLSON ROBERT KENT·Filed 2009·Granted Nov 15, 2011·12 cites·20 claims
- 0380US7815170B2Valve assembly having a reinforced valve seatTYCO VALVES & CONTROLS LP·Filed 2007·Granted Oct 19, 2010·16 cites·19 claims
- 0480US5338006AGate valve with improved seal unitTECHNAFLOW INC·Filed 1993·Granted Aug 16, 1994·47 cites·24 claims
- 0572US5560587AGate valve sleeveTECHNAFLOW INC·Filed 1994·Granted Oct 1, 1996·34 cites·16 claims
- 0666US8408519B2Gate valve with lubricated secondary sealOHLSON ROBERT KENT·Filed 2010·Granted Apr 2, 2013·3 cites·8 claims
- 0760US4623122AValve with improved sealITT·Filed 1985·Granted Nov 18, 1986·20 cites·14 claims
- 0859US5979874ASplit knife gate valve having a uniformly compressed and constrained resilient gate seat and method for producing the sameTECHNAFLOW INC·Filed 1997·Granted Nov 9, 1999·23 cites·9 claims
- 0948US8251086B2Rotary gate valve with secondary sealELLIS JOHNNY·Filed 2010·Granted Aug 28, 2012·1 cites·6 claims
- 1042US2009159827A1Rotary gate valveTYCO VALVES & CONTROLS LP·Filed 2007·Application pending·0 cites
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →