Zacher; Wieland
Patent Applications and Registrations
Patent applications and USPTO patent grants for Zacher; Wieland.The latest application filed is for "production of ethylene copolymers".
- Zacher; Wieland - Wesseling DE
| Patent | Date |
|---|---|
| Production of ethylene copolymers Grant 4,260,722 - Pfleger , et al. April 7, 1 | 1981-04-07 |
| Manufacture of ethylene copolymers Grant 4,217,431 - Zacher , et al. August 12, 1 | 1980-08-12 |
| Manufacture of high pressure polyethylene Grant 4,153,774 - Boettcher , et al. May 8, 1 | 1979-05-08 |
| Removal of ethylene from gases Grant 4,093,703 - Buechner , et al. June 6, 1 | 1978-06-06 |
| Manufacture of copolymers of ethylene Grant 4,048,411 - Mietzner , et al. September 13, 1 | 1977-09-13 |
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