Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4864282 | Method and apparatus for detecting or measuring the presence of humans or biological organism | — | 1989-09-05 |
| 4682801 | Electromagnet access control circuit | Robert C. Cook | 1987-07-28 |