Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4479102 | Machine tool relay structure | Kenneth J. Marien | 1984-10-23 |
| 4472697 | Armature assembly for machine tool relay | James T. Tucker, Kenneth H. Marien, Joseph J. Gribble | 1984-09-18 |
| 4344102 | Anti-telegraph control circuit for electromagnet coil | Julian C. Kampf, James T. Libert | 1982-08-10 |