Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4490330 | Sulphur dioxide-liberating, sterilizing composition and method of using same | John G. B. Howes | 1984-12-25 |
| 4304894 | Quaternary ammonium terpolymers | John K. Andrews, John G. B. Howes | 1981-12-08 |