Inventor · disambiguated record
Richard C. Hartwig
Also filed as: HARTWIG RICHARD C
9 granted patents·253 citations·filing 1987–1993
91Inventor score
Files withGRACE W R & CO9
Top patents by PatentIndex Score
9 records- 0182US5091455APolyurethane-poly (vinylchloride) interpenetrating networkGRACE W R & CO·Filed 1990·Granted Feb 25, 1992·31 cites·12 claims
- 0279US5362581ABattery separatorGRACE W R & CO·Filed 1993·Granted Nov 8, 1994·60 cites·16 claims
- 0374US5362582ABattery separatorGRACE W R & CO·Filed 1993·Granted Nov 8, 1994·51 cites·13 claims
- 0470US4788269APolyurethane coatings for bridge deckings and the likeGRACE W R & CO·Filed 1988·Granted Nov 29, 1988·26 cites·16 claims
- 0565US4804734APolyurethane composition consisting essentially of a polyether diol, a polyether triol, glycerol, and a polyisocyanateGRACE W R & CO·Filed 1987·Granted Feb 14, 1989·14 cites·8 claims
- 0656US5389433ABattery separatorGRACE W R & CO·Filed 1993·Granted Feb 14, 1995·26 cites·15 claims
- 0755US4855185APolyurethane coatings for bridge deckings and the likeGRACE W R & CO·Filed 1988·Granted Aug 8, 1989·10 cites·18 claims
- 0849US5389463ABattery separatorGRACE W R & CO·Filed 1993·Granted Feb 14, 1995·18 cites·15 claims
- 0948US5346788AMicroporous polyurethane based battery separatorGRACE W R & CO·Filed 1993·Granted Sep 13, 1994·17 cites·17 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →