Inventor · disambiguated record
Wai Ming Choi
Also filed as: CHOI WAI M · CHOI WAI MING
18 granted patents·4 pending applications·415 citations·filing 1981–2017
95Inventor score
Top patents by PatentIndex Score
22 records- 0193US4699857ABattery separatorGRACE W R & CO·Filed 1986·Granted Oct 13, 1987·57 cites·25 claims
- 0286US7964012B2Filter media with improved conductivityHOLLINGSWORTH & VOSE CO·Filed 2006·Granted Jun 21, 2011·11 cites·25 claims
- 0385US6802315B2Vapor deposition treated electret filter mediaHOLLINGSWORTH & VOSE CO·Filed 2001·Granted Oct 12, 2004·40 cites·62 claims
- 0481US6680144B2Battery separatorKVG TECHNOLOGIES INC·Filed 2002·Granted Jan 20, 2004·21 cites·13 claims
- 0579US7097939B2Gel-forming battery separatorHOLLINGSWORTH & VOSE CO·Filed 2001·Granted Aug 29, 2006·25 cites·5 claims
- 0678US9457322B2Porous composite membraneCHOI WAI-MING·Filed 2010·Granted Oct 4, 2016·12 cites·16 claims
- 0778US6384100B1Graft polymerization, separators, and batteries including the separatorsHOLLINGSWORTH & VOSE CO·Filed 2000·Granted May 7, 2002·19 cites·15 claims
- 0877US8663358B2Filter media with improved conductivityCHOI WAI M·Filed 2011·Granted Mar 4, 2014·5 cites·23 claims
- 0975US4734344ABattery separatorGRACE W R & CO·Filed 1986·Granted Mar 29, 1988·36 cites·20 claims
- 1073US4369236ABattery separatorGRACE W R & CO·Filed 1981·Granted Jan 18, 1983·27 cites·16 claims
- 1171US10150087B2Organic solvent purifier and method of usingENTEGRIS INC·Filed 2015·Granted Dec 11, 2018·1 cites·28 claims
- 1269US5384211AOxidation resistant enveloped separatorGRACE W R & CO·Filed 1993·Granted Jan 24, 1995·41 cites·19 claims
- 1368US9192942B2Filter media with improved conductivityHOLLINGSWORTH & VOSE CO·Filed 2014·Granted Nov 24, 2015·1 cites·22 claims
- 1468US5154988ADeep cycle battery separatorsGRACE W R & CO·Filed 1991·Granted Oct 13, 1992·39 cites·20 claims
- 1567US5478677AComposite gauntlet/separatorDARAMIC INC·Filed 1995·Granted Dec 26, 1995·40 cites·16 claims
- 1664US5618642ABattery separator with sodium sulfateDARAMIC INC·Filed 1995·Granted Apr 8, 1997·35 cites·15 claims
- 1762US6955865B2Graft polymerization, separators, and batteries including the separatorsHOLLINGSWORTH & VOSE CO·Filed 2002·Granted Oct 18, 2005·5 cites·9 claims
- 1857US11103833B2Hydrophobic polyethylene membrane for use in venting, degassing, and membrane distillation processesENTEGRIS INC·Filed 2017·Granted Aug 31, 2021·0 cites·17 claims
- 1957US2016166960A1Filter media with improved conductivityHOLLINGSWORTH & VOSE CO·Filed 2015·Application pending·0 cites
- 2053US2015144557A1Organic Solvent Purifier And Method Of UsingENTEGRIS INC·Filed 2013·Application pending·0 cites
- 2141US2015001146A2Porous Composite Membrane Including Microporous Membrane Layers and Nanofiber LayerRAMIREZ RAUL A·Filed 2012·Application pending·0 cites
- 2233US2013043183A1Electron Source Modification Of Microporous Halocarbon Filter MembranesGE JIJUN·Filed 2011·Application pending·0 cites
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →