Issued Patents All Time
Showing 1–17 of 17 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5268193 | Low dielectric constant, low moisture uptake polyimides and copolyimides for interlevel dielectrics and substrate coatings | Allyson Beuhler, Douglas E. Fjare | 1993-12-07 |
| 5206091 | Low dielectric constant, low moisture uptake polyimides and copolyimides for interlevel dielectrics and substrate coatings | Allyson Beuhler, Douglas E. Fjare | 1993-04-27 |
| 5089593 | Polyimide containing 4,4'-bis(4-amino-2-trifluoromethylphenoxy)-biphenyl moieties | Douglas E. Fjare | 1992-02-18 |
| 4992527 | Polyamide, polyimide, and polyamide-imide polymers of diamino-t-butylbenzene | David J. Fenoglio, Douglas E. Fjare, John L. Melquist, Edwin F. Morello | 1991-02-12 |
| 4975521 | Polyamide, polyimide, and polyamide-imide polymers and copolymers using 3,5-diamino-t-butylbenzene | Douglas E. Fjare | 1990-12-04 |
| 4973659 | Polyamide from diamino-t-butylbenzene | David J. Fenoglio, Douglas E. Fjare, John L. Melquist, Edwin F. Morello | 1990-11-27 |
| 4968780 | Polyamide, polyimide, and polyamide-imide polymers of diamino-t-butylbenzene | David J. Fenoglio, Douglas E. Fjare, John L. Melquist, Edwin F. Morello | 1990-11-06 |
| 4946934 | Polyamide from 3,5-diamino-t-butylbenzene | David J. Fenoglio, Douglas E. Fjare, Edwin F. Morello | 1990-08-07 |
| 4892970 | Staged aromatics oxidation in aqueous systems | James D. Lowry, Jr. | 1990-01-09 |
| 4876385 | Batch or semicontinuous pseudocumene oxidation and catalyst recovery and recycle | Donald E. Thomka | 1989-10-24 |
| 4876329 | Polyimide polymers and copolymers using 3,5-diaminobenzotrifluoride | Weilong L. Chiang, Douglas E. Fjare | 1989-10-24 |
| 4822527 | Process for preparation of anthraquinones and fluorenones | David E. James | 1989-04-18 |
| 4816601 | Process for the manufacture of trimellitic acid | James D. Lowry, Jr., Walter Partenheimer | 1989-03-28 |
| 4804501 | Process for preparation of anthraquinones and fluorenones | David E. James | 1989-02-14 |
| 4786752 | Catalyst recovery and recycle of catalysts in pseudocument oxidation process | Juergen K. Holzhauer, Wayne P. Schammel | 1988-11-22 |
| 4769488 | Batch or semicontinuous pseudocumene oxidation and catalyst recovery and recycle | Donald E. Thomka | 1988-09-06 |
| 4652674 | Method for monitoring the fluorescence of 4-carboxy-p-terphenyl in crude terephthalic acid | David E. James, Robert William McCoy | 1987-03-24 |