Inventor · disambiguated record
Duane A. Heyman
Also filed as: HEYMAN DUANE A
28 granted patents·1 pending application·599 citations·filing 1977–2004
97Inventor score
Top patents by PatentIndex Score
29 records- 0194US4454255AProcess for the preparation of white graft polymer dispersions and flame-retardant polyurethane foamsBASF WYANDOTTE CORP·Filed 1982·Granted Jun 12, 1984·70 cites·9 claims
- 0292US4458038AProcess for the preparation of white graft polymer dispersions and flame-retardant polyurethane foamsBASF WYANDOTTE CORP·Filed 1983·Granted Jul 3, 1984·57 cites·60 claims
- 0390US5093412AMacromers for graft polyols and the polyols prepared therefromBASF CORP·Filed 1989·Granted Mar 3, 1992·44 cites·23 claims
- 0490US4522976AGraft polymer dispersion in a mixture of low molecular weight polyols and polyether polyols and polyurethane foams prepared therefromBASF WYANDOTTE CORP·Filed 1984·Granted Jun 11, 1985·49 cites·16 claims
- 0588US4690956AProcess for the preparation of graft polymer dispersions and flame-retardant polyurethane foamsBASF CORP·Filed 1985·Granted Sep 1, 1987·49 cites·20 claims
- 0685US4689354AProcess for the preparation of white graft polymer dispersions and flame-retardant polyurethane foamsBASF CORP·Filed 1985·Granted Aug 25, 1987·33 cites·29 claims
- 0783US4568705AGraft polymer dispersion in a mixture of low molecular weight polyols and polyether polyols and polyurethane foams prepared therefromBASF WYANDOTTE CORP·Filed 1985·Granted Feb 4, 1986·35 cites·4 claims
- 0882US6710096B2Polyether polyol for foam applicationsBASF CORP·Filed 2002·Granted Mar 23, 2004·18 cites·21 claims
- 0981US4458050APolymer dispersions and their usesBASF WYANDOTTE CORP·Filed 1983·Granted Jul 3, 1984·27 cites·10 claims
- 1078US6255431B1Compositions of polytetramethylene ether glycols and polyoxy alkylene polyether polyols having a low degree of unsaturationBASF CORP·Filed 2000·Granted Jul 3, 2001·13 cites·4 claims
- 1178US4334049AProcess for the preparation of finely divided solid polymers in polyolBASF WYANDOTTE CORP·Filed 1980·Granted Jun 8, 1982·24 cites·11 claims
- 1278US4327005AProcess for the preparation of stabilized polymer dispersions in polyol at low temperatureBASF WYANDOTTE CORP·Filed 1980·Granted Apr 27, 1982·27 cites·11 claims
- 1377US5607982AFlexible open-cell polyurethane foamBASF CORP·Filed 1996·Granted Mar 4, 1997·29 cites·20 claims
- 1475US4661531AProcess for preparing graft polymer dispersions and polyurethanes prepared therefromBASF CORP·Filed 1985·Granted Apr 28, 1987·21 cites·12 claims
- 1573US6172164B1Process for making graft polyols using t-amyl peroxy free radical initiatorBASF CORP·Filed 1999·Granted Jan 9, 2001·26 cites·27 claims
- 1670US5198473APolyurethane foams of increased flame retardancyBASF CORP·Filed 1991·Granted Mar 30, 1993·18 cites·16 claims
- 1764US6780932B2Graft polyols prepared by a continuous processBASF CORP·Filed 2002·Granted Aug 24, 2004·6 cites·54 claims
- 1857US4503207AProcess for the preparation of acrylamide graft polymer dispersionsBASF WYANDOTTE CORP·Filed 1983·Granted Mar 5, 1985·9 cites·6 claims
- 1952US4113952AProcess for preparing 2-benzimidazolonesSHERWIN WILLIAMS CO·Filed 1977·Granted Sep 12, 1978·2 cites·19 claims
- 2049US4334031AFlame-retardant polyurethane foam prepared by incorporating a graft polymer having a particle size greater than 0.5 micronBASF WYANDOTTE CORP·Filed 1981·Granted Jun 8, 1982·8 cites·6 claims
- 2145US6040413AComposition of polytetramethylene ether glycols and polyoxy alkylene polyether polyols having a low degree of unsaturationBASF CORP·Filed 1996·Granted Mar 21, 2000·7 cites·21 claims
- 2243US4536557APolymer dispersions and their usesBASF WYANDOTTE CORP·Filed 1984·Granted Aug 20, 1985·7 cites·6 claims
- 2342US4555527AProcess for the preparation of acrylamide graft polymer dispersionsBASF WYANDOTTE CORP·Filed 1984·Granted Nov 26, 1985·5 cites·6 claims
- 2441US2005239968A1Process for preparing graft polyols using enol ethers as reaction moderatorsHEYMAN DUANE A·Filed 2004·Application pending·0 cites
- 2538US5919972AGraft polymer dispersion having a third monomer and polyurethane foams having a reduced tendency to shrink prepared therebyBASF CORP·Filed 1998·Granted Jul 6, 1999·4 cites·10 claims
- 2638US4503193APolymer dispersions and their usesBASF WYANDOTTE CORP·Filed 1984·Granted Mar 5, 1985·3 cites·9 claims
- 2737US5741851AGraft polymer dispersion having a third monomer and polyurethane foams having a reduced tendency to shrink prepared therebyBASF CORP·Filed 1995·Granted Apr 21, 1998·4 cites·3 claims
- 2832US5863959AGraft polymer dispersion having a third monomer and polyurethane foams having a reduced tendency to shrink prepared therebyBASF CORP·Filed 1998·Granted Jan 26, 1999·2 cites·14 claims
- 2932US5710220AGraft polymer dispersion having a third monomer and polyurethane foams having a reduced tendency to shrink prepared therebyBASF CORP·Filed 1995·Granted Jan 20, 1998·2 cites·1 claims
Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →