Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date | Approx Value ⓘ |
|---|---|---|---|---|
| 6139982 | Magnetic recording medium having a binder system including a polyurethane polymer having both phosphonate and quaternary ammonium pendant groups | William E. Bottomley, Ruth M. Erkkila | 2000-10-31 | $1,936,000 |
| 6099895 | Surface modification of magnetic particle pigments | Ian T. Morgan, Colin F. Norman, Robert James Domett Nairne | 2000-08-08 | $5,083,000 |
| 6045986 | Formation and photographic use of solid particle dye dispersions | Valerie Millar, Mark P. Kirk | 2000-04-04 | |
| 5868959 | Surface modification of magnetic particle pigments | Ian T. Morgan, Colin F. Norman, Robert James Domett Nairne | 1999-02-09 | $29,563,000 |