Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5028136 | Rugate optical filter systems | Kent J. Kogler, Craig S. Bartholomew, Howard T. Betz, Richard J. Harris | 1991-07-02 |
| 4837044 | Rugate optical filter systems | Kent J. Kogler, Craig S. Bartholomew, Howard T. Betz, Richard J. Harris | 1989-06-06 |