Issued Patents All Time
Showing 1–8 of 8 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4613552 | Cell cathode material | — | 1986-09-23 |
| 4487822 | Galvanic cell with tin fluoborate electrolyte | — | 1984-12-11 |
| 4358956 | Liquid level indicator | Philip E. Kalker | 1982-11-16 |
| 4306005 | Alkaline primary cell with cathode of potassium permanganate with lithium hydroxide | — | 1981-12-15 |
| 4297232 | Glycol-iodine composition and method of preparation | — | 1981-10-27 |
| 4251608 | Lead-sulfuric acid battery with stainless steel or titanium grid | — | 1981-02-17 |
| 4227410 | Attitude compensating indicator | Philip E. Kalker | 1980-10-14 |
| 4207766 | Attitude compensating liquid content indicator | Philip E. Kalker | 1980-06-17 |