Issued Patents All Time
Showing 1–14 of 14 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5997658 | Aqueous stripping and cleaning compositions | Darryl Peters, Irl E. Ward, Floyd Riddle | 1999-12-07 |
| 5988186 | Aqueous stripping and cleaning compositions | Irl E. Ward | 1999-11-23 |
| 5928430 | Aqueous stripping and cleaning compositions containing hydroxylamine and use thereof | Irl E. Ward | 1999-07-27 |
| 5872295 | Purification of hydroxylamine | Irl E. Ward | 1999-02-16 |
| 5753601 | Organic stripping composition | Irl E. Ward | 1998-05-19 |
| 5728664 | Photoresist stripping compositions | — | 1998-03-17 |
| 5709756 | Basic stripping and cleaning composition | Irl E. Ward, Darryl Peters | 1998-01-20 |
| 5707947 | Organic stripping composition | Irl E. Ward | 1998-01-13 |
| 5698503 | Stripping and cleaning composition | Irl E. Ward, Darryl Peters | 1997-12-16 |
| 5571447 | Stripping and cleaning composition | Irl E. Ward, Leslie D. Molnar | 1996-11-05 |
| 5556482 | Method of stripping photoresist with composition containing inhibitor | Irl E. Ward | 1996-09-17 |
| 5496491 | Organic stripping composition | Irl E. Ward | 1996-03-05 |
| 5139607 | Alkaline stripping compositions | Irl E. Ward | 1992-08-18 |
| 4992108 | Photoresist stripping compositions | Irl E. Ward | 1991-02-12 |