Issued Patents All Time
Showing 1–20 of 20 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8786847 | Light measuring meter apparatus | John K. O'Farrell | 2014-07-22 |
| 7876421 | Light meter apparatus and system | John K. O'Farrell, James L. Domigan | 2011-01-25 |
| 5278737 | Wall and ceiling lighting unit | Ron Luce, Mark J. Hastings, Robert T. Allen | 1994-01-11 |
| 5185637 | Portable traffic signal light photometer | Ladd Howell | 1993-02-09 |
| 5149191 | Combination louver/lens light fixture shield | Joe Greer | 1992-09-22 |
| 4709312 | Floodlight with improved reflector system | Richard V. Heinisch | 1987-11-24 |
| 4703405 | Glare reducing lens | — | 1987-10-27 |
| 4665463 | Electrostatic chuck | Rodney Ward | 1987-05-12 |
| 4652851 | Lamp control system | — | 1987-03-24 |
| 4575788 | Segmented luminaire | — | 1986-03-11 |
| 4564888 | Wall-wash lighting fixture | Richard V. Heinisch, Arnold L. Tanunliong | 1986-01-14 |
| 4559587 | Wall mounted luminaire | Honesto D. Quiogue | 1985-12-17 |
| 4554611 | Electrostatic chuck loading | — | 1985-11-19 |
| 4502094 | Electrostatic chuck | Michael Plummer, Rodney Ward | 1985-02-26 |
| 4388675 | Indirect lighting fixture | — | 1983-06-14 |
| 4383289 | Task lighting fixture for concentrating illumination | — | 1983-05-10 |
| 4344111 | High efficiency lighting units and systems using same | Alan J. Ruud | 1982-08-10 |
| 4310876 | Lighting fixture and method using multiple reflections | Edward A. Small, Jr. | 1982-01-12 |
| 4262326 | Lens for high intensity lamp fixtures | — | 1981-04-14 |
| 4229782 | High efficiency lighting units with beam cut-off angle | Alan J. Ruud | 1980-10-21 |