SCA Development Aktiebolag
Patent Applications and Registrations
Patent applications and USPTO patent grants for SCA Development Aktiebolag.The latest application filed is for "refiner disc segment".
- SCA Development Aktiebolag - SE SE
- SCA Development Aktiebolag - Sundsvall SW
| Patent | Date |
|---|---|
| Refiner disc segment Grant 4,635,864 - Peterson , et al. January 13, 1 | 1987-01-13 |
| Method for delignification of ligno-cellulose containing fiber material with an alkali-oxygen extraction stage Grant 4,451,332 - Annergren , et al. May 29, 1 | 1984-05-29 |
| Process for digesting and bleaching cellulosic material with reduced emissions Grant 4,329,199 - Andersson , et al. May 11, 1 | 1982-05-11 |
| Method of manufacturing cellulose derivative Grant 4,256,877 - Karlsson , et al. March 17, 1 | 1981-03-17 |
| Steam treating method and system Grant 4,240,260 - Gustafson December 23, 1 | 1980-12-23 |
| Refining element Grant 4,039,154 - Peterson August 2, 1 | 1977-08-02 |
| Continuously refining raw fibrous material to produce mechanical refiner pulp Grant 4,037,792 - Peterson * July 26, 1 | 1977-07-26 |
| Mechanical refining of fiber material including steam recycle Grant 3,921,918 - Peterson November 25, 1 | 1975-11-25 |
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