Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5070732 | Modular sensor device | William M. Duncan, George E. Glass, Jeffrey L. Johnson, Edward A. McMillan, Frank S. Maney +2 more | 1991-12-10 |
| 4870863 | Modular switch device | William M. Duncan, George E. Glass, Jeffrey L. Johnson, Edward A. McMillan, Frank S. Maney +2 more | 1989-10-03 |