Inventor · disambiguated record
Walter Chapman
Also filed as: CHAPMAN JR WALTER R · CHAPMAN WALTER · CHAPMAN WALTER R
10 granted patents·3 pending applications·187 citations·filing 1976–2019
90Inventor score
Top patents by PatentIndex Score
13 records- 0193US5896004ADouble ended quartz lamp with end bend controlGEN ELECTRIC·Filed 1998·Granted Apr 20, 1999·91 cites·19 claims
- 0280US7373980B2Mono-trip cement thru completionBAKER HUGHES INC·Filed 2006·Granted May 20, 2008·17 cites·32 claims
- 0371US7940043B2NMR method of detecting precipitants in a hydrocarbon streamUNIV RICE WILLIAM M·Filed 2007·Granted May 10, 2011·7 cites·20 claims
- 0466US7069992B2Mono-trip cement thru completionBAKER HUGHES INC·Filed 2003·Granted Jul 4, 2006·24 cites·27 claims
- 0564US5430353ALamp inlead assembly having a formed foil arrangementGEN ELECTRIC·Filed 1993·Granted Jul 4, 1995·21 cites·13 claims
- 0645US2015107680A1Modulating check valveCHAPMAN JR WALTER R·Filed 2013·Application pending·0 cites
- 0744US7228897B2Cement through side pocket mandrelBAKER HUGHES INC·Filed 2003·Granted Jun 12, 2007·7 cites·16 claims
- 0844US3999568ASelf unloading check valveCHAPMAN WALTER R·Filed 1976·Granted Dec 28, 1976·8 cites·13 claims
- 0944US2020248818A1Hemispherical Poppet Valve For Rotary Screw Compressor Intake ValvesCHAPMAN JR WALTER R·Filed 2019·Application pending·0 cites
- 1041US2019249791A1Back pressure valve having a reduced pressure drop required for fluid to pass through the valveCHAPMAN JR WALTER R·Filed 2018·Application pending·0 cites
- 1139US10598006B2Methods and systems for downhole sensing and communications in wellsGEN ELECTRIC·Filed 2017·Granted Mar 24, 2020·0 cites·19 claims
- 1237US5019743AMount structure for double ended lampGEN ELECTRIC·Filed 1989·Granted May 28, 1991·5 cites·12 claims
- 1337US4826134AIntake valve for air compressors and the likeCHAPMAN WALTER R·Filed 1988·Granted May 2, 1989·7 cites·7 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →