Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4838442 | Product preserving stopper | — | 1989-06-13 |
| 4620111 | Auxiliary portable power supply | William J. McArthur | 1986-10-28 |
| 4535036 | Multi-cell power supply | Roger W. Kelm, William J. McArthur | 1985-08-13 |
| 4192640 | Multiple transfer process and article resulting therefrom | — | 1980-03-11 |