Inventor
Duane A. Heyman
Inventor
Monroe, MI, US
Overview
Patents· 29 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
C08Gprimary
C08GMacromolecular compounds obtained otherwise than by reactions only involving unsaturated carbon-to-carbon bonds41%
C08FMacromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds36%
C08LCompositions of macromolecular compounds8%
C08JWorking-up7%
Y10STechnical subjects covered by former uspc cross-reference art collections [xracs] and digests7%
C07DHeterocyclic compounds2%
PatentTitleYear
6,780,932'Graft polyols prepared by a continuous process'20046,710,096'Polyether polyol for foam applications'20046,255,431'Compositions of polytetramethylene ether glycols and polyoxy alkylene polyether polyols having a low degree of unsaturation'20016,172,164'Process for making graft polyols using t-amyl peroxy free radical initiator'20016,040,413'Composition of polytetramethylene ether glycols and polyoxy alkylene polyether polyols having a low degree of unsaturation'20005,919,972'Graft polymer dispersion having a third monomer and polyurethane foams having a reduced tendency to shrink prepared thereby'19995,863,959'Graft polymer dispersion having a third monomer and polyurethane foams having a reduced tendency to shrink prepared thereby'19995,741,851'Graft polymer dispersion having a third monomer and polyurethane foams having a reduced tendency to shrink prepared thereby'19985,710,220'Graft polymer dispersion having a third monomer and polyurethane foams having a reduced tendency to shrink prepared thereby'19985,607,982'Flexible open-cell polyurethane foam'19975,198,473'Polyurethane foams of increased flame retardancy'19935,093,412'Macromers for graft polyols and the polyols prepared therefrom'1992RE033291'Process for the preparation of white graft polymer dispersions and flame-retardant polyurethane foams'19904,690,956'Process for the preparation of graft polymer dispersions and flame-retardant polyurethane foams'19874,689,354'Process for the preparation of white graft polymer dispersions and flame-retardant polyurethane foams'19874,661,531'Process for preparing graft polymer dispersions and polyurethanes prepared therefrom'19874,568,705'Graft polymer dispersion in a mixture of low molecular weight polyols and polyether polyols and polyurethane foams prepared therefrom'19864,555,527'Process for the preparation of acrylamide graft polymer dispersions'19854,536,557'Polymer dispersions and their uses'19854,522,976'Graft polymer dispersion in a mixture of low molecular weight polyols and polyether polyols and polyurethane foams prepared therefrom'19854,503,207'Process for the preparation of acrylamide graft polymer dispersions'19854,503,193'Polymer dispersions and their uses'19854,458,038'Process for the preparation of white graft polymer dispersions and flame-retardant polyurethane foams'19844,458,050'Polymer dispersions and their uses'19844,454,255'Process for the preparation of white graft polymer dispersions and flame-retardant polyurethane foams'19844,334,031'Flame-retardant polyurethane foam prepared by incorporating a graft polymer having a particle size greater than 0.5 micron'19824,334,049'Process for the preparation of finely divided solid polymers in polyol'19824,327,005'Process for the preparation of stabilized polymer dispersions in polyol at low temperature'19824,113,952'Process for preparing 2-benzimidazolones'1978Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
1978Patents assigned to SHERWIN WILLIAMS CO (1)· patent assignee history
1978Based in Waterville, OH, US· patent location history
1982–1986Patents assigned to BASF WYANDOTTE CORP (12)· patent assignee history
1982–2004Based in Monroe, MI, US· patent location history
1987–2004Patents assigned to BASF CORP (15)· patent assignee history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| BASF CORP | 15 | 1987–2004 |
| BASF WYANDOTTE CORP | 12 | 1982–1986 |
| SHERWIN WILLIAMS CO | 1 | 1978 |
Locations
| Location | Patents | Span |
|---|---|---|
| Monroe, MI, US | 28 | 1982–2004 |
| Waterville, OH, US | 1 | 1978 |