Issued Patents All Time
Showing 1–19 of 19 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7517119 | Externally adjustable directional luminaire | Robert E. Kaeser, Michael D. Wyatt | 2009-04-14 |
| 5682039 | Media position sensing system having a plurality of apertures in the media edge margin | John M. Bertalan | 1997-10-28 |
| 5599094 | Mounting system for light fixture | Jerry F. Fischer, Robert E. Kaeser | 1997-02-04 |
| 5461402 | Pinch roller for pen plotters including platen bridge to prevent media snag | William C. Chow | 1995-10-24 |
| 5458040 | Teaching device for stringed instruments | — | 1995-10-17 |
| D339374 | Pedestal-mounted case for a pen plotter | William C. Chow | 1993-09-14 |
| 5159848 | Self-adjusting motor mount for drive motors of a pen plotter | — | 1992-11-03 |
| 4879567 | Carriage coupling device system for pen plotter | — | 1989-11-07 |
| 4849771 | Plotter pen presence and type identification system | Aftab H. Kapadya | 1989-07-18 |
| RE32775 | Pinch roller assembly | — | 1988-11-01 |
| 4777727 | Plotter pen up/down control system | — | 1988-10-18 |
| 4779104 | Pen plotter pen type identification system | Aftab H. Kapadya | 1988-10-18 |
| 4754288 | Pen carousel, pen sensing and indexing | — | 1988-06-28 |
| 4567491 | Pinch roller assembly | — | 1986-01-28 |
| 4540994 | Releasable pen block guide | — | 1985-09-10 |
| 4539574 | Pen capping mechanism | Lloyd N. Broome | 1985-09-03 |
| 4290836 | Method of making composite pipe having an integral bell end | Alex L. McPherson, Douglas E. Triestram | 1981-09-22 |
| 4243075 | Composite pipe | Alex L. McPherson, Douglas E. Triestram | 1981-01-06 |
| 4240470 | Composite pipe having an integral bell end | Alex L. McPherson, Douglas E. Triestram | 1980-12-23 |