Issued Patents All Time
Showing 1–9 of 9 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4505998 | Alkaline battery containing a separator of a cross-linked copolymer of vinyl alcohol and unsaturated carboxylic acid | Li-Chen Hsu, Warren H. Philipp, Olga D. Gonzalez-Sanabria | 1985-03-19 |
| 4418130 | Additive for zinc electrodes | Daniel G. Soltis, William J. Nagle | 1983-11-29 |
| 4371596 | Advanced inorganic separators for alkaline batteries and method of making the same | — | 1983-02-01 |
| 4357402 | Polyvinyl alcohol cross-linked with two aldehydes | Lorra L. Rieker, Li-Chen Hsu, Michelle A. Manzo | 1982-11-02 |
| 4331746 | Advanced inorganic separators for alkaline batteries | — | 1982-05-25 |
| 4309372 | Method of making formulated plastic separators for soluble electrode cells | — | 1982-01-05 |
| 4272470 | Cross-linked polyvinyl alcohol and method of making same | Li-Chen Hsu, Warren H. Philipp | 1981-06-09 |
| 4262067 | In-situ cross linking of polyvinyl alcohol | Warren H. Philipp, Li-Chen Hsu | 1981-04-14 |
| 4218280 | Method of cross-linking polyvinyl alcohol and other water soluble resins | Warren H. Philipp, Charles E. May, Li-Chen Hsu | 1980-08-19 |