Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4388212 | Reducing surface tension with N-type betaines of 2-hydroxyl-1,1,2,3,3-pentahydroperfluoroalkylamines | — | 1983-06-14 |
| 4283533 | N-type betaines of 2-hydroxy-1,1,2,3,3-pentahydroperfluoroalkylamines | — | 1981-08-11 |
| RE30351 | Aromatic polyimide, polyester and polyamide separation membranes | Harvey H. Hoehn | 1980-07-29 |