Issued Patents All Time
Showing 1–25 of 29 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6028656 | Optical polarization switch and method of using same | Peter J. Miller | 2000-02-22 |
| 5892612 | Tunable optical filter with white state | Peter J. Miller | 1999-04-06 |
| 5132822 | Optical switch | — | 1992-07-21 |
| 5115481 | Multi-position optical fiber rotary switch | — | 1992-05-19 |
| 4991938 | Quasi-achromatic optical isolators and circulators using prisms with total internal fresnel reflection | W. John Carlsen | 1991-02-12 |
| 4988170 | Quasi-achromatic optical isolators and circulators | — | 1991-01-29 |
| 4987567 | Optical wavelength multiplexer/demultiplexer and demultiplexer/remultiplexer | — | 1991-01-22 |
| 4955686 | Optical fiber crossconnect switch | W. John Carlsen, Sarah S. Cousins, Alfred H. Bellows | 1990-09-11 |
| 4953938 | Optical fiber expanded beam connector | Alfred H. Bellows | 1990-09-04 |
| 4772104 | Achromatic tuner for birefringent optical filter | — | 1988-09-20 |
| 4744075 | Multichannel wavelength multiplexer/demultiplexer | — | 1988-05-10 |
| 4691141 | Dosing composition for high pressure sodium lamps | Alfred E. Feuersanger | 1987-09-01 |
| 4678287 | Methods of and apparatus for tuning a birefringent optical filter | — | 1987-07-07 |
| 4671613 | Optical beam splitter prism | — | 1987-06-09 |
| 4634239 | Multiple port optical fiber switch | — | 1987-01-06 |
| 4597640 | Optical polarization restoration apparatus | — | 1986-07-01 |
| 4589726 | Optical fiber rotary switch | — | 1986-05-20 |
| 4587462 | Fluorescent light source with parallel DC discharges | — | 1986-05-06 |
| 4464133 | Method of charging a vessel with mercury | — | 1984-08-07 |
| 4450385 | Inductive ballasting of direct current gas discharges | — | 1984-05-22 |
| 4399392 | Arc lamp power supply | — | 1983-08-16 |
| 4382210 | Ballast circuit for direct current arc lamp | — | 1983-05-03 |
| 4366410 | Vacuum-tight assembly particularly for a discharge tube | — | 1982-12-28 |
| 4339690 | Energy saving fluorescent lighting system | Robert J. Regan, Adrian I. Cogan | 1982-07-13 |
| 4334628 | Vacuum-tight assembly | Alfred E. Feuersanger | 1982-06-15 |