Issued Patents All Time
Showing 1–18 of 18 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4526441 | Method and electrolytic display for selectively displaying an image | Barry F. Dowden, David H. Kirkman | 1985-07-02 |
| 4507178 | Electrodeposition of chromium and its alloys | — | 1985-03-26 |
| 4502927 | Electrodeposition of chromium and its alloys | William M. Morgan, James M. Vigar | 1985-03-05 |
| 4488782 | Electrolytic display device employing metal ion catalysis | Colin Leonard Bird | 1984-12-18 |
| 4472250 | Bath and process for the electrodeposition of chromium | William M. Morgan, James M. Vigar | 1984-09-18 |
| 4448648 | Trivalent chromium electroplating baths | William M. Morgan, James M. Vigar | 1984-05-15 |
| 4448649 | Trivalent chromium electroplating baths | William M. Morgan, James M. Vigar | 1984-05-15 |
| RE31508 | Electrodeposition of chromium | William M. Morgan | 1984-01-24 |
| 4417955 | Method of and solution for electroplating chromium and chromium alloys and method of making the solution | William M. Morgan | 1983-11-29 |
| 4374007 | Trivalent chromium electroplating solution and process | James M. Vigar | 1983-02-15 |
| 4278512 | Low concentration trivalent chromium electroplating solution and process | James M. Vigar | 1981-07-14 |
| 4265543 | Kerr effect apparatus | Christopher T. Prowting | 1981-05-05 |
| 4256548 | Elimination of anode hydrogen cyanide formation in trivalent chromium plating | James M. Vigar | 1981-03-17 |
| 4256380 | Counter electrode arrangement of an electrochromic display device | Anthony Cyril Lowe, David H. Martin | 1981-03-17 |
| 4252418 | Electrochromic display device | Colin Leonard Bird, David H. Martin, William M. Morgan | 1981-02-24 |
| 4228431 | Electrochromic display device | Colin Leonard Bird, Michael H. Hallett, David H. Martin | 1980-10-14 |
| 4196062 | Method of brightening electrodeposited chromium | James M. Vigar | 1980-04-01 |
| 4187003 | Electrolyte for electrochromic display device | — | 1980-02-05 |