Inventor · disambiguated record
David Keiser
Also filed as: KEISER DAVID · KEISER DAVID B · KEISER DAVID BURTON
7 granted patents·80 citations·filing 1996–2015
84Inventor score
Top patents by PatentIndex Score
7 records- 0188US7347408B2High differential pressure, low torque precision temperature control valveGRISWOLD CONTROLS INC·Filed 2006·Granted Mar 25, 2008·22 cites·10 claims
- 0284US7448410B2High differential pressure, low torque precision temperature control valveGRISWOLD CONTROLS INC·Filed 2007·Granted Nov 11, 2008·13 cites·10 claims
- 0377US6948699B1Retainer for a ball valve seatKEISER DAVID B·Filed 2002·Granted Sep 27, 2005·25 cites·2 claims
- 0467US7971854B2Replaceable valve shaft sealing systemGRISWOLD CONTROLS INC·Filed 2008·Granted Jul 5, 2011·5 cites·10 claims
- 0546US8100149B2Combined pressure, temperature and air vent deviceKEISER DAVID B·Filed 2008·Granted Jan 24, 2012·2 cites·11 claims
- 0639US9664283B2Captivated seal assemblyKEISER DAVID·Filed 2015·Granted May 30, 2017·0 cites·16 claims
- 0739US5712936AHybrid bi-directional three color wave division multiplexer and method using sameMCI COMMUNICATIONS CORP·Filed 1996·Granted Jan 27, 1998·13 cites·26 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →