Wintershall Aktiengesellschaft
Patent Applications and Registrations
Patent applications and USPTO patent grants for Wintershall Aktiengesellschaft.The latest application filed is for "pretreatment of solid wastes, and wastes to be compacted, for introduction into underground salt cavities of salt caverns via a downpipe under the force of gravity".
- Wintershall Aktiengesellschaft - Kassel DE
- Wintershall Aktiengesellschaft - both of DE
- Wintershall Aktiengesellschaft - DE DE
Trademarks
| Patent | Date |
|---|---|
| Pretreatment of solid wastes, and wastes to be compacted, for introduction into underground salt cavities of salt caverns via a downpipe under the force of gravity Grant 4,886,393 - Jahn-Held , et al. December 12, 1 | 1989-12-12 |
| Process and installation for the flooding of petroleum deposits and oil shale Grant 4,286,660 - Wagner , et al. September 1, 1 | 1981-09-01 |
| Method for the tertiary recovery of petroleum by flooding with hot water and an aqueous alkaline solution Grant 4,223,730 - Schulz , et al. September 23, 1 | 1980-09-23 |
| Apparatus for producing petroleum coke calcinate Grant 4,198,273 - Dudek , et al. April 15, 1 | 1980-04-15 |
| Method of producing petroleum coke calcinate Grant 4,176,010 - Dudek , et al. November 27, 1 | 1979-11-27 |
| Two-stage Electrostatic Separation Of Particulate Material Grant 3,581,886 - Singewald , et al. June 1, 1 | 1971-06-01 |
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