WC

Wai Ming Choi

HV Hollingsworth & Vose: 7 patents #17 of 80Top 25%
EN Entegris: 3 patents #193 of 643Top 35%
W& W. R. Grace &: 3 patents #62 of 433Top 15%
DA Daramic: 2 patents #31 of 57Top 55%
WC W.R. Grace & Co.-Conn.: 2 patents #348 of 1,045Top 35%
KT Kvg Technologies: 1 patents #2 of 5Top 40%
📍 Newton, MA: #306 of 2,747 inventorsTop 15%
🗺 Massachusetts: #6,479 of 88,656 inventorsTop 8%
Overall (All Time): #253,929 of 4,157,543Top 7%
18
Patents All Time

Issued Patents All Time

Showing 1–18 of 18 patents

Patent #TitleCo-InventorsDate
11103833 Hydrophobic polyethylene membrane for use in venting, degassing, and membrane distillation processes Jad Jaber, Vinay Goel, Vinay Kalyani, Anthony Dennis 2021-08-31
10150087 Organic solvent purifier and method of using Saksatha Ly 2018-12-11
9457322 Porous composite membrane Kiminori Kataoka 2016-10-04
9192942 Filter media with improved conductivity Karin N. Soper 2015-11-24
8663358 Filter media with improved conductivity Karin N. Soper 2014-03-04
7964012 Filter media with improved conductivity Karin N. Soper 2011-06-21
7097939 Gel-forming battery separator Anthony L. Ferreira, Norman Lifshutz 2006-08-29
6955865 Graft polymerization, separators, and batteries including the separators 2005-10-18
6802315 Vapor deposition treated electret filter media Richard E. Gahan 2004-10-12
6680144 Battery separator 2004-01-20
6384100 Graft polymerization, separators, and batteries including the separators 2002-05-07
5618642 Battery separator with sodium sulfate Abbas Samii 1997-04-08
5478677 Composite gauntlet/separator Ingo Schmidt 1995-12-26
5384211 Oxidation resistant enveloped separator Werner Boehnstedt 1995-01-24
5154988 Deep cycle battery separators James K. Kung 1992-10-13
4734344 Battery separator 1988-03-29
4699857 Battery separator Richard T. Giovannoni, James K. Kung 1987-10-13
4369236 Battery separator Dennis D. O'Rell, Nan J. Lin 1983-01-18