Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5646601 | Magnetic apparatus for actuating a reed switch and associated system | Robert W. Pospick | 1997-07-08 |
| 5594925 | Method and apparatus determining order and identity of subunits by inputting bit signals during first clock period and reading configuration signals during second clock period | Stanley D. Harder, Richard A. Houghton | 1997-01-14 |
| 5364272 | Apparatus and method for teaching | Susan J. Herman, Michel Georges Stella, George L. Brantingham | 1994-11-15 |
| 5324898 | Motion detector and associated system | Brian C. McCormack, James R. Cox, Kevin Scott Hodge | 1994-06-28 |
| 5163844 | Battery-free electronic teaching apparatus with keypad of piezo film switches | Eugene E. Hollis, Jr., Richard A. Houghton | 1992-11-17 |