Issued Patents 1989
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4807977 | Multi-color electrochromic cells having solid polymer electrolytes and a distinct electrochromic layer | — | 1989-02-28 |
| 4804448 | Apparatus for simultaneous generation of alkali metal species and oxygen gas | Krystyna W. Semkow | 1989-02-14 |
| 4803134 | High energy density lithium-oxygen secondary battery | — | 1989-02-07 |