Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4628243 | Battery charging system having means for distinguishing between primary and secondary batteries | Ferdinand H. Mullersman | 1986-12-09 |
| 4577144 | Battery charging system including means for distinguishing between rechargeable and non-rechargeable batteries | Ferdinand H. Mullersman | 1986-03-18 |