Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5789847 | High efficiency sealed beam reflector lamp with reflective surface of heat treated silver | David R. Woodward, Jack R. Sheppard | 1998-08-04 |
| 5747919 | Electric lamp having a hybrid skirted lamp base | Harish F. Gandhi, David R. Woodward | 1998-05-05 |
| 5493170 | High efficiency sealed beam reflector lamp | Jack R. Sheppard, David R. Woodward, James A. Cinalli, Douglas W. Shriver, Edmund R. Kern | 1996-02-20 |
| 5117156 | Rapid start fluorescent lamp having quick hot restarting | Thomas O. Leyh | 1992-05-26 |
| 4271109 | Method of manufacturing a ceramic article | — | 1981-06-02 |