Issued Patents All Time
Showing 201–224 of 224 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5337221 | Means and method for highly controllable lighting | Joe P. Crookham | 1994-08-09 |
| 5313378 | Mobile lighting system | Robert D. Jones, George P. Glass, David M. Crookham, Bradley M. Chelesvig, James A. Witson | 1994-05-17 |
| 5229681 | Discharge lamp with offset or tilted arc tube | Jim L. Drost | 1993-07-20 |
| D337168 | Lighting fixture support | Jim L. Drost | 1993-07-06 |
| 5211473 | Glare control lamp and reflector assembly and method for glare control | Jim L. Drost | 1993-05-18 |
| 5207747 | Mobile lighting system | Robert D. Jones, George P. Glass, David M. Crookham, Bradley M. Chelesvig, James A. Whitson | 1993-05-04 |
| 5161883 | Means and method for increasing output, efficiency, and flexibility of use of an arc lamp | Jim L. Drost | 1992-11-10 |
| 5134557 | Means and method for increasing output, efficiency, and flexibility of use of an arc lamp | Jim L. Drost | 1992-07-28 |
| 5075828 | Glare control lamp and reflector assembly and method for glare control | Jim L. Drost | 1991-12-24 |
| 5016150 | Means and method for increasing output, efficiency, and flexibility of use of an arc lamp | Jim L. Drost | 1991-05-14 |
| 4994718 | Method and means for dimming ballasted lamps | — | 1991-02-19 |
| 4947303 | Glare control lamp and reflector assembly and method for glare control | Jim L. Drost | 1990-08-07 |
| 4816974 | Glare control lamp and reflector assembly and method for glare control | — | 1989-03-28 |
| 4729077 | Variable beam width lighting device | James L. Drost | 1988-03-01 |
| 4725934 | Glare control lamp and reflector assembly and method for glare control | — | 1988-02-16 |
| 4712167 | Remote control, moveable lighting system | James L. Drost | 1987-12-08 |
| 4450507 | Composite photometric method | — | 1984-05-22 |
| 4423471 | Mobile lighting fixture, method and boom | James L. Drost, Bryan L. Mydosh | 1983-12-27 |
| 4374407 | Ballast mounting means | Jim L. Drost | 1983-02-15 |
| 4337576 | Knife with retractable blade | Jim L. Drost | 1982-07-06 |
| D263445 | Cutting blade holder for use in the graphic arts or the like | Jim L. Drost | 1982-03-23 |
| D257891 | Flood lighting assembly | James L. Drost | 1981-01-13 |
| D254694 | Socket unit for a flood lighting fixture | Jim L. Drost | 1980-04-08 |
| 4190881 | Crossarm assembly for high intensity discharge luminaries | James L. Drost | 1980-02-26 |