Issued Patents All Time
Showing 26–36 of 36 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5194211 | Bar stamping | Brian Edmondson | 1993-03-16 |
| 4964134 | Semiconductor laser structures | Leslie D. Westbrook | 1990-10-16 |
| 4962502 | Optical signal processing device | — | 1990-10-09 |
| 4952016 | Optical power limiter | David A. H. Mace | 1990-08-28 |
| 4873690 | Optical switch | — | 1989-10-10 |
| 4822273 | Apparatus for stamping a detergent bar | Brian Edmondson | 1989-04-18 |
| 4814967 | Digitally-controlled cycloconverter | M. Blythe Broughton | 1989-03-21 |
| 4793677 | Electro-optic devices with waveguide and having small spatial spread of applied electric field | Michael Robertson, Paul M. Rodgers, Simon Ritchie | 1988-12-27 |
| 4793959 | Process for stamping a detergent bar | Brian Edmondson | 1988-12-27 |
| 4776655 | Single mode optical waveguides of rectangular cross-section | Michael Robertson | 1988-10-11 |
| 4515475 | Measurement of refractive index profile | David Neil Payne, Issei Sasaki | 1985-05-07 |