Issued Patents All Time
Showing 1–12 of 12 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7347588 | Focusable spotlight with asymmetrical light distribution | — | 2008-03-25 |
| 6575598 | Focusable spotlight with a negative lens | Depu Chin | 2003-06-10 |
| 6499862 | Spotlight with an adjustable angle of radiation and with an aspherical front lens | Depu Chin | 2002-12-31 |
| 6004007 | Spotlight with an adjustable angle of radiation | — | 1999-12-21 |
| 5954415 | Illuminating apparatus | — | 1999-09-21 |
| 5795057 | Asymmetrical lamp | — | 1998-08-18 |
| 5674001 | Asymmetrical lamp | — | 1997-10-07 |
| 5418694 | Gate for a lamp | — | 1995-05-23 |
| 5313380 | Lighting assembly | — | 1994-05-17 |
| 5088812 | High-frequency movie camera | — | 1992-02-18 |
| 4823243 | Miniature spotlight with extremely variable exit angle and constant even field of illumination | — | 1989-04-18 |
| 4702577 | Film transport device | — | 1987-10-27 |