Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4849500 | Polyamide from diacetylene dicarboxylic acid compound | — | 1989-07-18 |
| 4808336 | Measurement of strain employing a piezoresistive blend of a doped acetylene polymer and an elastomer | Enid K. Sichel | 1989-02-28 |