Issued Patents All Time
Showing 26–43 of 43 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5656395 | Metal-air cathode and cell having a hardened current collecting substrate | John Edward Oltman, Joseph L. Passaniti | 1997-08-12 |
| 5650246 | Metal-air cathode and cell having a hardened current collecting substrate | John Edward Oltman, Joseph L. Passaniti | 1997-07-22 |
| 5637117 | Method of hardening a metal current collecting strip of an air cathode and a method of making a button type battery | John Edward Oltman, Joseph L. Passaniti | 1997-06-10 |
| 5587259 | Metal-air cathode and cell having a hardened current collecting substrate | John Edward Oltman, Joseph L. Passaniti | 1996-12-24 |
| 5582930 | High energy density metal-air cell | John Edward Oltman, John David Burns | 1996-12-10 |
| 5567538 | Metal-air cell having thin-walled anode and cathode cans | John Edward Oltman, John David Burns | 1996-10-22 |
| 5451473 | Long life metal-air (battery and button cells therefor) cell having increased current pulse capability | John Edward Oltman | 1995-09-19 |
| 5378562 | Method of making air cathode material having catalytically active manganese compounds of valance state +2 | Joseph L. Passaniti | 1995-01-03 |
| 5308711 | Metal-air cathode and cell having catalytically active manganese compounds of valence state +2 | Joseph L. Passaniti | 1994-05-03 |
| 4999265 | Alkaline cells containing fluorescent dyes | — | 1991-03-12 |
| 4857424 | Zinc alkaline electrochemical cells with reduced mercury anodes | Duane M. Larsen | 1989-08-15 |
| 4791034 | Sealing sleeve | — | 1988-12-13 |
| 4649090 | Seal tab for a metal-air electrochemical cell | John Edward Oltman, Denis D. Carpenter | 1987-03-10 |
| 4617242 | Organic siliconate additive for alkaline zinc electrochemical cells | — | 1986-10-14 |
| 4591539 | Metal-air cathode button cell | John Edward Oltman, Denis D. Carpenter | 1986-05-27 |
| 4369568 | Method for manufacturing cells utilizing centrifuging techniques | — | 1983-01-25 |
| 4343869 | Seal for metal-air batteries | John Edward Oltman | 1982-08-10 |
| 4299593 | Method and apparatus for detecting and measuring a gas | — | 1981-11-10 |