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Karlstad, Sweden

Kamyr Ab

USPTO Granted Patents = 66

Forward Citations = 701

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38 inventors (with patents filed for the assignee):

Finn Jacobsen (11 out of 15 patents)

Ole J Richter (9 out of 20 patents)

Johan C Richter (8 out of 29 patents)

4. Johan E Gullichsen (7 out of 20 patents)

5. Ake Backlund (6 out of 16 patents)

6. Bengt H Nilsson (6 out of 25 patents)

7. Bjorn Ahs (5 out of 5 patents)

8. Ronny Hoglund (5 out of 12 patents)

9. Ulf Jansson (4 out of 27 patents)

10. Rolf Ekholm (3 out of 29 patents)

11. Rune Hillstrom (3 out of 4 patents)

12. Claes G Lysen (2 out of 2 patents)

13. Goran Tistad (2 out of 2 patents)

14. Goran Brottgangrdh (2 out of 2 patents)

15. Toivo J Niskanen (2 out of 23 patents)

Core Competencies:

Foam Formation

Continuous Digester Apparatus

Oxygen Bleaching

Cellulosic Fiber Material

Energy Consumption Reduction

Refining Cellulosic Material

Pressure Diffuser Screens

Fluidizing Pump

Mechanical Pulp Treatment

Pulp Production

Screening Apparatus

Tramp Material Separator

66 patents: Sort by Forward Citations

1. 5879422 - Separating arrangement and method for counteracting foam formation (1999-03-09),

2. 5669948 - Separating arrangement and method for counteracting foam formation (1997-09-23),

3. 5300195 - Continuous vertical digester apparatus (1994-04-05),

4. 5236553 - Continuous cooking with reduced horsepower and pulp degradation (1993-08-17),

5. 5217575 - Process for oxygen bleaching using two vertical reactors (1993-06-08),

6. 5209641 - Apparatus for fluidizing, degassing and pumping a suspension of fibrous (1993-05-11),

7. 5192396 - Process for the continuous digestion of cellulosic fiber material (1993-03-09),

8. 5152871 - Method for decreasing energy consumption during refining of fiber (1992-10-06),

9. 5085735 - Method of refining cellulosic fibrous material with successive (1992-02-04),

10. 5080755 - Process for the continuous digestion of cellulosic fiber material (1992-01-14),

11. 5069752 - Digester screen switching (1991-12-03),

12. 5053108 - High sulfidity cook for paper pulp using black liquor sulfonization of (1991-10-01),

13. 5051167 - Apparatus for screening a suspension of fibrous cellulose material (1991-09-24),

14. 5047118 - Method for decreasing energy consumption during refining of fiber (1991-09-10),

15. 5044179 - Stabilizing pressure and flow conditions in a screening apparatus (1991-09-03),

Kamyr AB is a leading supplier of process equipment and engineering services for the pulp and paper industry. With over 100 years of experience, Kamyr is known for providing innovative solutions that improve production efficiency, quality, and sustainability. Their portfolio includes advanced technologies for pulp washing, oxygen delignification, pulp bleaching, and more. Kamyr's expertise and dedication to customer satisfaction have made them a trusted partner for many global pulp and paper manufacturers.

This text is generated by artificial intelligence and may not be accurate.

Company Badge

USPTO Data Jan 1 1976 - Dec 30 2025

66 Patents

#2 in Karlstad

#108 in Sweden

#10,736 in the World

Karlstad, Sweden

Kamyr Ab

Forward Citations = 701

38 inventors:

Finn Jacobsen (11 out of 15 patents)

Ole J Richter (9 out of 20 patents)

Johan C Richter (8 out of 29 patents)

4. Johan E Gullichsen (7 out of 20 patents)

5. Ake Backlund (6 out of 16 patents)

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