Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4791043 | Positive photoresist stripping composition | Edmund W. Smalley, Kane D. Cook | 1988-12-13 |
| 4620934 | Soluble fluorinated cycloalkane sulfonate surfactant additives for NH.sub.4 | Ronald J. Hopkins, Harold John Kieta | 1986-11-04 |
| 4517106 | Soluble surfactant additives for ammonium fluoride/hydrofluoric acid oxide etchant solutions | Ronald J. Hopkins, Harold John Kieta | 1985-05-14 |
| 4491530 | Brown stain suppressing phenol free and chlorinated hydrocarbons free photoresist stripper | — | 1985-01-01 |