Issued Patents All Time
Showing 1–25 of 50 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5098991 | Process of preparing polyamide-imide and polyimide polymers from acid anhydrides and dianhydrides of disubstituted maleic anhydrides | Steven J. Behrend, David A. Young | 1992-03-24 |
| 5072003 | Acid anhydrides and dianhydrides of disubstituted maleic anhydrides | Steven J. Behrend | 1991-12-10 |
| 5003085 | Acid anhydrides and dianhydrides of disubstituted maleic anhydrides | Steven J. Behrend, David A. Young | 1991-03-26 |
| 4638072 | Disubstituted maleic anhydride compounds | Mark L. Winzenburg, Steven J. Behrend | 1987-01-20 |
| 4596867 | Disubstituted maleic anhydride compounds | Mark L. Winzenburg, Steven J. Behrend | 1986-06-24 |
| 4585897 | Process for preparation of fuel additives from acetylene | Mark L. Winzenburg, David A. De Marco | 1986-04-29 |
| 4560761 | Quaternary ammonium compounds containing an anhydride group | Mark L. Winzenburg | 1985-12-24 |
| 4555350 | Carbamates of beta-hydroxyethylsulfoxides | — | 1985-11-26 |
| 4540527 | Phosphites and phosphates of 3-sulfoxy-1,2-propylene glycols | — | 1985-09-10 |
| 4536560 | Polyimides prepared from cyclic dianhydrides | Mark L. Winzenburg, Benjamin L. Shneider | 1985-08-20 |
| 4533478 | 3-Sulfoxy-1,2-propylene glycols-1-esters of tricyclo (4.2.2.0.sup.2,5) dec-9-ene-3,4,7,8-tetracarboxylic acid | — | 1985-08-06 |
| 4526986 | Halomethyl, methyl maleic anhydride and synthesis of bromomethyl, methyl maleic anhydride | Mark L. Winzenburg | 1985-07-02 |
| 4511730 | Carbamates of beta-hydroxyethylsulfoxides | — | 1985-04-16 |
| 4508605 | Nonaromatic dianhydride and polyimides from tricyclo[4.2.1.0.sup.2,5 ] nonane-3,4-dimethyl-3,4,7,8-tetracarboxylic acid dianhydride | Tayseer S. Nimry | 1985-04-02 |
| 4507186 | Dianhydrides and polyimides | Tayseer S. Nimry | 1985-03-26 |
| 4506093 | 3-Sulfoxy-1,2-propylene glycols-1-esters of tricyclo (4.2.2.0.sup.2,5) dec-9-ene-3,4,7,8-tetracarboxylic acid | — | 1985-03-19 |
| 4490545 | Cyclic dianhydrides prepared from maleic anhydride | Mark L. Winzenburg, Benjamin L. Shneider | 1984-12-25 |
| 4475597 | Low molecular weight olefin polymers and copolymers of 3-butene-1-ol | William C. Clarke | 1984-10-09 |
| 4436940 | Photochemical method for preparing low molecular weight olefin polymers and copolymers of 3-butene-1-ol | William C. Clarke | 1984-03-13 |
| 4432847 | Poly sulfoxides from 1,3,4-thiadiazole-2,5-dithiol | — | 1984-02-21 |
| 4431791 | Fibers from copolyimides and polymidies derived from tetramethylcyclobutane-1,2,3,4-tetracarboxylic dianhydride and diamines | Tayseer S. Nimry, Edward E. Paschke | 1984-02-14 |
| 4427565 | Novel class of rust inhibitors for fuels and oils | Ronald L. Anderson | 1984-01-24 |
| 4417045 | Polyimides and polyimide-amides | Tayseer S. Nimry | 1983-11-22 |
| 4415483 | Class of Friedel-Crafts catalysts | — | 1983-11-15 |
| 4414406 | Class of Friedel-crafts catalysts | — | 1983-11-08 |