Issued Patents All Time
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6328496 | Marking instruments | Alan Robert Hill, Charles C. Packham, Mark Arthur Seddon | 2001-12-11 |
| 6039493 | Ball point pen | Mark Arthur Seddon | 2000-03-21 |
| 5750956 | Methods of manufacturing perforated foils | Trevor John Crichton | 1998-05-12 |
| 5645697 | Preventing contaminant build-up in beer lines | David Middleton, David Brian Telfer | 1997-07-08 |
| 4968392 | Treatment of condenser tubes | Susan B. Smith, Roger Francis | 1990-11-06 |
| 4196063 | Electrodeposition of black chromium | John J. B. Ward | 1980-04-01 |