Issued Patents All Time
Showing 1–12 of 12 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| H858 | Electrical battery cell wicking structure and method | John F. Leonard, Stephen Vukson, Ken Kim | 1990-12-04 |
| 4894298 | Alkali and halogen rechargeable cell with reactant recombination | Stephen Vukson, John F. Leonard, Kwang Kim | 1990-01-16 |
| 4872847 | Pilfer proofing system for electric utility meter box | Robert B. Fennell, David S. LeGasse | 1989-10-10 |
| 4628593 | Method for fabricating battery plaque and low shear nickel electrode | John F. Leonard | 1986-12-16 |
| 4623600 | Low shear nickel electrode | John F. Leonard | 1986-11-18 |
| 4546897 | Inert atmosphere transfer vessel | Joseph T. Maloy, John F. Leonard | 1985-10-15 |
| 4399005 | Method of nickel electrode production | John F. Leonard | 1983-08-16 |
| 4395469 | Low pressure nickel hydrogen battery | — | 1983-07-26 |
| 4380926 | Battery electrode hardness tester | John F. Leonard | 1983-04-26 |
| 4379410 | Battery electrode fatigue simulator | John F. Leonard | 1983-04-12 |
| 4338382 | Battery safety terminal | — | 1982-07-06 |
| 4242179 | Method of fabricating cadmium electrodes | John F. Leonard, Thirumalai G. Palanisamy | 1980-12-30 |