Issued Patents All Time
Showing 25 most recent of 27 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7382280 | Parking violation recording system and method | — | 2008-06-03 |
| 6522754 | Digital vehicle microphone system and method | Alan Chen, Rich Gibbons | 2003-02-18 |
| 6259956 | Method and apparatus for site management | Robert J. Myers, Ben E. Winstead, III | 2001-07-10 |
| 5793281 | Method and apparatus for point of sale promotional announcements | — | 1998-08-11 |
| 5770351 | Processing of monochrome photographic silver halide print material | Michael Parker | 1998-06-23 |
| 5376510 | Concentrated photographic developing solution | Michael Parker, Anthony M. Lannon, Terence C. Webb | 1994-12-27 |
| 4948714 | Processing of photographic silver halide materials | Kenneth M. McCombe, Marion R. Palmer, Terence C. Webb | 1990-08-14 |
| 4917992 | Developing agents | Malcolm D. Tirel | 1990-04-17 |
| 4788115 | Processing holograms | David W. Butcher | 1988-11-29 |
| 4753869 | Photographic developing agents containing stable, soluble, pyrazolidinones | Malcolm D. Tirel, Monica H. Gent, Terence C. Webb | 1988-06-28 |
| 4732981 | 3-pyrazolidinone salts | Malcolm D. Tirel | 1988-03-22 |
| 4728601 | Tetra-aza indene compounds | David Rowland, Michael E. Dale, Geoffrey E. Ficken, Andrew W. Yates | 1988-03-01 |
| 4687846 | Pyrazolidinone salts as developing agents | Malcolm D. Tirel | 1987-08-18 |
| 4609620 | Pyrazolone compounds and a process for their manufacture | Stephen Postle | 1986-09-02 |
| 4560646 | Protected developing agents | Norman Alfred Smith, Terence C. Webb, Stephen Postle, Kenneth M. McCombe, Martin C. Grossel | 1985-12-24 |
| 4482716 | Dyestuffs and their use in photographic material | — | 1984-11-13 |
| 4446216 | Photographic material | Norman Alfred Smith, Stephen Postle | 1984-05-01 |
| 4446227 | Dyestuffs and their use in photographic material | — | 1984-05-01 |
| 4386149 | Process for the production of photographic images by dye diffusion transfer and photographic material suitable in this process | Leslie F. A. Mason, Rainer Kitzing, Brian R. D. Whitear, Glenn Wood, David L. R. Reeves | 1983-05-31 |
| 4353974 | Process for the production of photographic images and photographic materials used in this process | Terence C. Webb, Patrick D. P. Thomas | 1982-10-12 |
| 4335245 | Process for preparing certain pyridine 2,3,6-triones | — | 1982-06-15 |
| 4288598 | Pyridine-2,3,6-triones | — | 1981-09-08 |
| 4285859 | Azo compounds useful in a photographic dye diffusion transfer process | Rainer Kitzing, Brian R. D. Whitear, David L. R. Reeves, Glenn Wood | 1981-08-25 |
| 4269928 | Process for the production of photographic images by dye diffusion transfer and photographic material suitable in this process | Leslie F. A. Mason, Rainer Kitzing, Brian R. D. Whitear, Glenn Wood, David L. R. Reeves | 1981-05-26 |
| 4248772 | Positively or negatively charged azo compounds containing a ballasting group | — | 1981-02-03 |