Issued Patents All Time
Showing 51–58 of 58 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4774314 | Preparing poly(aryl ethers) using alkaline earth metal carbonates, organic acid salts, and optionally copper compounds, as catalysts | Paul A. Winslow, Markus Matzner | 1988-09-27 |
| 4774344 | 2,2-bis-phenol dioxolanes monomers | — | 1988-09-27 |
| 4766197 | Modified poly(aryl ether ketones) derived from biphenol | Robert A. Clendinning | 1988-08-23 |
| 4638044 | Process for preparing poly(aryl ether ketone)s | — | 1987-01-20 |
| 4625000 | Process for preparing sulfonated poly(aryl ether) resins | Herbert Chao | 1986-11-25 |
| 4305829 | Process for flocculating an aqueous suspension of particles with quaternary ammonium graft copolymers | Russell L. Kreeger | 1981-12-15 |
| 4271053 | Quaternary ammonium graft copolymers for use as flocculants and method of preparing same | Russell L. Kreeger | 1981-06-02 |
| 4198528 | Preparation of di-tertiary peroxides | — | 1980-04-15 |