Inventor · disambiguated record
Philip F. Wolf
Also filed as: WOLF PHILIP F
32 granted patents·466 citations·filing 1978–2001
97Inventor score
Top patents by PatentIndex Score
32 records- 0196US5672634ACrosslinked PVP-I2 foam productISP INVESTMENTS INC·Filed 1996·Granted Sep 30, 1997·124 cites·4 claims
- 0293US6667029B2Stable, aqueous cationic hydrogelISP INVESTMENTS INC·Filed 2001·Granted Dec 23, 2003·72 cites·13 claims
- 0384US5354823AFilms and extrusions of cured crosslinked vinyl lactam polymer and method of preparationISP INVESTMENTS INC·Filed 1993·Granted Oct 11, 1994·35 cites·8 claims
- 0476US5502136AProcess for making substantially homogeneous copolymers of vinyl pyrrolidone and vinyl acetate which form clear aqueous solutionsISP INVESTMENTS INC·Filed 1994·Granted Mar 26, 1996·29 cites·5 claims
- 0575US5723524AMethod for preventing or retarding the formation of gas hydratesISP INVESTMENTS INC·Filed 1996·Granted Mar 3, 1998·35 cites·25 claims
- 0669US5663258AStrongly swellable, moderately crosslinked copolymers of vinylpyrrolidone and vinyl acetateISP INVESTMENTS INC·Filed 1996·Granted Sep 2, 1997·22 cites·26 claims
- 0764US6124415ACrosslinked polyvinylpyrrolidone (PVPP) copolymer of vinyl pyrrolidone (VP) and monomer derived from 1-vinyl-3-(E)-ethylidene pyrrolidone (EVP)ISP INVESTMENT INC·Filed 1999·Granted Sep 26, 2000·10 cites·8 claims
- 0864US5393854AColorless, purified polymerizable composition useful for the production of crosslinked polyvinylpyrrolidoneISP INVESTMENTS INC·Filed 1994·Granted Feb 28, 1995·6 cites·2 claims
- 0961US4313890APolyol ester functional fluidsUNION CARBIDE CORP·Filed 1980·Granted Feb 2, 1982·15 cites·10 claims
- 1058US5716634AClear, homogenized, flowable hydrogel of crosslinked N-vinyl lactam polymerISP INVESTMENTS INC·Filed 1996·Granted Feb 10, 1998·18 cites·14 claims
- 1158US5468820AReactive diluent for radiation curing of film-forming polymersISP INVESTMENTS INC·Filed 1994·Granted Nov 21, 1995·9 cites·10 claims
- 1257US5534564AProcess for the color stabilization of an aqueous N-vinyl heterocyclic copolymer solutionISP INVESTMENTS INC·Filed 1994·Granted Jul 9, 1996·11 cites·12 claims
- 1357US4183863AConversion of cyclohexanol to ε-caprolactoneUNION CARBIDE CORP·Filed 1978·Granted Jan 15, 1980·4 cites·8 claims
- 1453US5567786APolymerizable composition of vinylpyrrolidone and vinyl caprolactamISP INVESTMENTS INC·Filed 1996·Granted Oct 22, 1996·10 cites·8 claims
- 1551US5274120A1-vinyl-3(E)-ethylidene pyrrolidoneISP INVESTMENTS INC·Filed 1993·Granted Dec 28, 1993·3 cites·1 claims
- 1649US5912312AHomogeneous copolymers containing vinyl pyrrolidone and 2-methylene-1,3-dioxepane and process for making sameISP INVESTMENTS INC·Filed 1998·Granted Jun 15, 1999·8 cites·9 claims
- 1749US4524224AHydrolysis of alkylene carbonates to aklylene glycolsUNION CARBIDE CORP·Filed 1983·Granted Jun 18, 1985·6 cites·17 claims
- 1847US5684105AProcess for providing homogeneous copolymers of vinylpyrrolidone and 3-dimethylaminopropyl methacrylamide (DMAPMA) which form clear aqueous solutions having high cloud pointsISP INVESTMENTS INC·Filed 1996·Granted Nov 4, 1997·8 cites·10 claims
- 1947US5604275AColor stabilized aqueous n-vinyl heterocyclic copolymer solutionsISP INVESTMENTS INC·Filed 1995·Granted Feb 18, 1997·8 cites·14 claims
- 2047US5391668AColorless, purified polymerizable composition useful for the production of crosslinked polyvinylpyrrolidoneISP INVESTMENTS INC·Filed 1993·Granted Feb 21, 1995·2 cites·7 claims
- 2145US5393825AFilms and extrusions of cured crosslinked vinyl lactam polymer and method of preparationISP INVESTMENTS INC·Filed 1994·Granted Feb 28, 1995·5 cites·8 claims
- 2245US5286876AProcess for obtaining 1-vinyl-3(E)-ethylidene pyrrolidoneISP INVESTMENTS INC·Filed 1993·Granted Feb 15, 1994·2 cites·7 claims
- 2343US5280049AMolded cellular crosslinked vinyl lactam polymer gel and method of preparationISP INVESTMENTS INC·Filed 1993·Granted Jan 18, 1994·6 cites·11 claims
- 2441US6359128B1Free-flowing flakes of vinyl caprolactam monomer and process for making sameISP INVESTMENTS INC·Filed 2000·Granted Mar 19, 2002·0 cites·1 claims
- 2539US5654385AOne-step process for making lightly-crosslinked polyvinylpyrrolidone hydrogelISP INVESTMENTS INC·Filed 1996·Granted Aug 5, 1997·6 cites·5 claims
- 2639US5360883AProcess for obtaining a polymerizable reaction solutionISP INVESTMENTS INC·Filed 1993·Granted Nov 1, 1994·1 cites·4 claims
- 2736US5614583AHomogenized flowable hydrogel of crosslinked N-vinyl lactam polymerISP INVESTMENTS INC·Filed 1995·Granted Mar 25, 1997·3 cites·6 claims
- 2836US5362796AMolded crosslinked vinyl lactam polymer gel and method of preparationISP INVESTMENTS INC·Filed 1993·Granted Nov 8, 1994·2 cites·17 claims
- 2935US6011160ACrosslinked polyvinylpyrrolidone (PVPP) copolymer of vinyl pyrrolidone (VP) and monomer derived from 1-vinyl-3-(E)-ethylidene pyrrolidone (EVP)ISP INVESTMENTS INC·Filed 1997·Granted Jan 4, 2000·2 cites·16 claims
- 3034US5112887AFormable coatingsUNION CARBIDE CHEM PLASTIC·Filed 1991·Granted May 12, 1992·3 cites·14 claims
- 3132US5342964AProcess for obtaining the isomeric compound 1-vinyl-3(E)-ethylidene pyrrolidoneISP INVESTMENTS INC·Filed 1993·Granted Aug 30, 1994·0 cites·7 claims
- 3232US5336697AMolded cellular crosslinked vinyl lactam polymer gel and method of preparationISP INVESTMENTS INC·Filed 1993·Granted Aug 9, 1994·1 cites·10 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →