Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date | Approx Value ⓘ |
|---|---|---|---|---|
| 4963283 | Solutions of perhalogenated compounds | Nicholas A. Troughton | 1990-10-16 | $106,000 |
| 4963342 | Solutions of permonosulphuric acid | Nicholas A. Troughton | 1990-10-16 | $106,000 |
| 4917122 | Compositions for use in the production of integrated circuits and method for its preparation and use | Geoffrey Hitchmough | 1990-04-17 | $193,000 |
| 4885106 | Storable semiconductor cleaning solution containing permonosulphuric acid | Geoffrey Hitchmough | 1989-12-05 | $166,000 |