Kamyr AB
66Patents
0Active
66Granted
37Portfolio score
Filing activity: Mar 21, 1975 → Sep 22, 1997
Most-cited patents
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US5209641A | Apparatus for fluidizing, degassing and pumping a suspension of fibrous cellulose material | Mechanical Engineering; Lighting; Heating | 129 | Expired |
| US4435193A | Controlling operation of a centrifugal pump | Mechanical Engineering; Lighting; Heating | 42 | Expired |
| US4419184A | Method for control of chemicals during gas treatment of suspensions | Physics | 36 | Expired |
| US5080755A | Process for the continuous digestion of cellulosic fiber material | Textiles; Paper | 30 | Expired |
| US4339206A | Mixing apparatus for mixing a fluid fiber suspension with a treatment fluid suspension | Textiles; Paper | 29 | Expired |
| US4776758A | Combined fluidizing and vacuum pump | Mechanical Engineering; Lighting; Heating | 27 | Expired |
| US4826398A | Medium consistency pump with self-feeding | Mechanical Engineering; Lighting; Heating | 23 | Expired |
| US5053108A | High sulfidity cook for paper pulp using black liquor sulfonization of steamed chips | Textiles; Paper | 22 | Expired |
| US4941970A | Apparatus for dividing a suspension of fibrous cellulose pulp | Textiles; Paper | 16 | Expired |
| US4680108A | Screening device | Textiles; Paper | 16 | Expired |
| US5039320A | Apparatus for fluidizing, degassing and pumping a suspension of fibrous cellulose material | Mechanical Engineering; Lighting; Heating | 15 | Expired |
| US4804912A | Apparatus for electromagnetically measuring the distance between two opposing grinding surfaces | Physics | 15 | Expired |
| US5217575A | Process for oxygen bleaching using two vertical reactors | Textiles; Paper | 14 | Expired |
| US4991720A | Apparatus for dividing a suspension of fibrous cellulose pulp | Textiles; Paper | 14 | Expired |
| US4699324A | Combined screening and reject reduction | Textiles; Paper | 14 | Expired |
| US5192396A | Process for the continuous digestion of cellulosic fiber material | Textiles; Paper | 13 | Expired |
| US4793161A | Effective diffuser/thickener screen backflushing | Performing Operations; Transporting | 13 | Expired |
| US4368628A | Apparatus for treatment of suspensions in movement | Performing Operations; Transporting | 13 | Expired |
| US4810964A | Method and apparatus for measuring the distance between a measuring transducer and an opposing surface, particularly with paper pulp equipment | Physics | 13 | Expired |
| US5669948A | Separating arrangement and method for counteracting foam formation | Performing Operations; Transporting | 13 | Expired |
| US4396509A | Device for extraction of liquid from suspensions in movement | Performing Operations; Transporting | 13 | Expired |
| US4750340A | Apparatus for treating a fibre suspension | Performing Operations; Transporting | 13 | Expired |
| US4986480A | Method and apparatus for feeding a conical refiner | Textiles; Paper | 12 | Expired |
| US4705600A | Method for the treatment of pulp with liquid | Textiles; Paper | 12 | Expired |
| US4754935A | Method and apparatus for refining fibrous material | Textiles; Paper | 12 | Expired |
Source: USPTO / EPO open patent data. Counts and citation impact are objective bibliographic measures.