RH

Richard C. Hartwig

WC W.R. Grace & Co.-Conn.: 9 patents #76 of 1,045Top 8%
📍 Laurel, MD: #47 of 605 inventorsTop 8%
🗺 Maryland: #3,562 of 35,612 inventorsTop 15%
Overall (All Time): #591,218 of 4,157,543Top 15%
9
Patents All Time

Issued Patents All Time

Showing 1–9 of 9 patents

Patent #TitleCo-InventorsDate
5389433 Battery separator Victor S. Chang, James K. Kung, Joseph T. Lundquist, Marc E. Parham, James A. Avtges +1 more 1995-02-14
5389463 Battery separator Victor S. Chang, Richard T. Giovannoni, Joseph T. Lundquist, Christian B. Lundsager, Marc E. Parham +1 more 1995-02-14
5362582 Battery separator Victor S. Chang, Joseph T. Lundquist, Marc E. Parham, James K. Kung, James A. Avtges +1 more 1994-11-08
5362581 Battery separator Victor S. Chang, Joseph T. Lundquist, Marc E. Parham, Anthony J. Laccetti 1994-11-08
5346788 Microporous polyurethane based battery separator Victor S. Chang, Joseph T. Lundquist, Marc E. Parham, Anthony J. Laccetti 1994-09-13
5091455 Polyurethane-poly (vinylchloride) interpenetrating network Norman Blank, Cung Vu 1992-02-25
4855185 Polyurethane coatings for bridge deckings and the like Cung Vu, Susan P. Buxbaum, Norman Blank 1989-08-08
4804734 Polyurethane composition consisting essentially of a polyether diol, a polyether triol, glycerol, and a polyisocyanate Cung Vu 1989-02-14
4788269 Polyurethane coatings for bridge deckings and the like Cung Vu, Susan P. Buxbaum, Norman Blank 1988-11-29