Inventor · disambiguated record
David John Koester
Also filed as: KOESTER DAVID J · KOESTER DAVID JOHN
11 granted patents·4 pending applications·281 citations·filing 1997–2016
91Inventor score
Files withFISHER CONTROLS INT8FISHER CONTROLS INT LLC3HELFER WADE JONATHON2HUTCHENS WILBUR D1KOESTER DAVID J1
Top patents by PatentIndex Score
15 records- 0194US7484710B2Fluid flow control valve with high temperature bi-directional shutoffFISHER CONTROLS INT·Filed 2005·Granted Feb 3, 2009·41 cites·19 claims
- 0294US5769122AFluid pressure reduction deviceFISHER CONTROLS INT·Filed 1997·Granted Jun 23, 1998·93 cites·23 claims
- 0393US5941281AFluid pressure reduction deviceFISHER CONTROLS INT·Filed 1998·Granted Aug 24, 1999·65 cites·17 claims
- 0488US6974121B2Fluid flow control valve with bi-directional shutoffFISHER CONTROLS INT·Filed 2002·Granted Dec 13, 2005·48 cites·36 claims
- 0585US9127775B2Flexible seals for process control valvesHELFER WADE JONATHON·Filed 2012·Granted Sep 8, 2015·7 cites·23 claims
- 0684US8286938B2Flexible seals for process control valvesHELFER WADE JONATHON·Filed 2007·Granted Oct 16, 2012·11 cites·25 claims
- 0767US9587747B2Flexible seals for process control valvesFISHER CONTROLS INT LLC·Filed 2015·Granted Mar 7, 2017·1 cites·11 claims
- 0866US7469708B2Universal fluid valve bodyFISHER CONTROLS INT·Filed 2004·Granted Dec 30, 2008·12 cites·14 claims
- 0962US9400061B2Fluid valve apparatus having enclosed sealsFISHER CONTROLS INT LLC·Filed 2013·Granted Jul 26, 2016·1 cites·26 claims
- 1057US7980530B2Packing nut for control valveFISHER CONTROLS INT·Filed 2005·Granted Jul 19, 2011·2 cites·20 claims
- 1152US2016238149A1Fluid valve apparatus having enclosed sealsFISHER CONTROLS INT LLC·Filed 2016·Application pending·0 cites
- 1244US2007138429A1Flexible seals for process control valvesHUTCHENS WILBUR D·Filed 2005·Application pending·0 cites
- 1341US2015102246A1Interlocking Spring Seat Assembly and Rotary Control Valve Comprising SameFISHER CONTROLS INT·Filed 2013·Application pending·0 cites
- 1439US7077384B2Integrated post-guided seat ring assemblyFISHER CONTROLS INT·Filed 2004·Granted Jul 18, 2006·0 cites·14 claims
- 1539US2009020167A1Rotary Actuator Lever with Locking DeviceKOESTER DAVID J·Filed 2007·Application pending·0 cites
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