Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6328496 | Marking instruments | Clive Barnes, Charles C. Packham, Mark Arthur Seddon | 2001-12-11 |
| 5775827 | Brush with cleaning element | Charles C. Packham, Robert D. White | 1998-07-07 |