Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5032002 | Write with light optical notching filter | Nils J. Fonneland, Robert W. Brandstetter, Philip G. Grieve | 1991-07-16 |
| 4699466 | Optical RF filtering system | Robert W. Brandstetter, Adrian R. Doucette, Charles E. Lindig, Nils J. Fonneland | 1987-10-13 |