Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9039208 | Manually adjustable ruggedized focus mechanism | George Costigan, Robert Tremblay, John F. Keating, Brian S. Phillips, James Hoffmaster | 2015-05-26 |
| 8033670 | Manually adjustable ruggedized focus mechanism | George Costigan, Robert Tremblay, John F. Keating, Brian S. Phillips, James Hoffmaster | 2011-10-11 |
| 7417803 | Focusing mechanism for a vision detector | George Costigan, David King, Robert Tremblay, John F. Keating, Brian S. Phillips +1 more | 2008-08-26 |
| 4287433 | Transistor logic tristate output with reduced power dissipation | — | 1981-09-01 |