Issued Patents All Time
Showing 26–42 of 42 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5121309 | Industrial luminaire with a quickly installed new and improved optical assembly | Robert L. Ewing, Robert J. Hayes, David G. Meredith | 1992-06-09 |
| D321408 | Luminaire | James S. Hughes, Robert L. Ewing, Bonnie J. Brohard | 1991-11-05 |
| D315612 | Luminaire | James S. Hughes, Robert L. Ewing, Bonnie J. Brohard | 1991-03-19 |
| D303434 | Industrial luminaire | Robert L. Ewing, James S. Hughes, Bruce G. Bruggeman | 1989-09-12 |
| 4858091 | Luminaire with uplight control | — | 1989-08-15 |
| D301278 | Fluorescent lighting fixture | James S. Hughes, Joel T. Gundlach, Paul A. Reeder | 1989-05-23 |
| D300952 | Fluorescent lighting fixture | James S. Hughes, Joel T. Gundlach, Paul A. Reeder | 1989-05-02 |
| D300953 | Fluorescent lighting fixture | James S. Hughes, Joel T. Gundlach, Paul A. Reeder | 1989-05-02 |
| D300951 | Fluorescent lighting fixture | James S. Hughes, Joel T. Gundlach, Paul A. Reeder | 1989-05-02 |
| D300873 | Recessed fluorescent lighting fixture | Neil Thompson, John R. Brass, Mark San George | 1989-04-25 |
| 4816976 | High efficiency luminaire with high angle brightness control | John R. Brass | 1989-03-28 |
| D298861 | Area light | Robert L. Ewing, James S. Hughes, Bruce G. Bruggeman | 1988-12-06 |
| D295792 | Area light | Robert L. Ewing, John W. Harvey, Richard G. Armstrong | 1988-05-17 |
| D294645 | Area light | Robert L. Ewing, John W. Harvey, Richard G. Armstrong | 1988-03-08 |
| D294647 | Area light | Robert L. Ewing, James S. Hughes, Bruce G. Bruggeman | 1988-03-08 |
| D293722 | Stanchion for exterior luminaire | Robert L. Ewing, James S. Hughes, Bruce G. Bruggeman | 1988-01-12 |
| 4670825 | Reflector for use in uniformly illuminating a polygonal area | — | 1987-06-02 |