Issued Patents All Time
Showing 1–11 of 11 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10552809 | Programmable card | — | 2020-02-04 |
| 6323368 | Process | — | 2001-11-27 |
| 5731918 | Lens mounting for optical instrument | Philip Michael Parr-Burman, Allan Gardam | 1998-03-24 |
| 5495401 | Distance lighting system for boats | — | 1996-02-27 |
| 4723511 | Continuous monitoring of water quality | Arthur J. Solman | 1988-02-09 |
| 4510238 | Photographic material and a process for its manufacture | Samuel B. Kingston | 1985-04-09 |
| 4336326 | Optical brightening agents and photographic materials which contain these brightening agents | — | 1982-06-22 |
| 4302579 | Optical brightening agents and photographic materials which contain these brightening agents | — | 1981-11-24 |
| 4233399 | Photographic elements containing amino-substituted hydroxy-pyridones | Rainer Kitzing, John G. V. Scott, Terence C. Webb | 1980-11-11 |
| 4229577 | Yellow photographic color couplers containing 3-imino-1,3,4-thiadiazolyl-4 groups | Mario Fryberg, Thomas Stauner, Paul Tschopp, David G. Leppard | 1980-10-21 |
| 4182886 | Amino-substituted hydroxy-pyridones | Rainer Kitzing, John G. V. Scott, Terence C. Webb | 1980-01-08 |