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For the Inventor, By the Inventor

Karlstad, Sweden

Kamyr Aktiebolag

Calculating rank
USPTO Granted Patents = 28

Forward Citations = 292

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23 inventors (with patents filed for the assignee):

goldMedal Johan C Richter (12 out of 29 patents)

silverMedal Ole J Richter (6 out of 20 patents)

bronzeMedal Ulf Jansson (4 out of 27 patents)

4.  Rolf Ekholm (4 out of 29 patents)

5.  Finn Jacobsen (3 out of 15 patents)

6.  Lennart Gustavsson (2 out of 29 patents)

7.  Ronny Hoglund (2 out of 12 patents)

8.  Bo Clarstrom (1 out of 7 patents)

9.  Hakan Dahllof (1 out of 6 patents)

10.  Joseph R Phillips (1 out of 39 patents)

11.  Allan Sven Jonsson (1 out of 5 patents)

12.  Finn Oulie (1 out of 6 patents)

13.  Rune Hillstrom (1 out of 4 patents)

14.  Ann-Sofi Jonsson (1 out of 2 patents)

15.  Sture Eriksson (1 out of 3 patents)


Core Competencies:
Separation Device
Pulp Pump
Dewatering
Cellulosic Fiber
Hydraulic Fluid
Diffusion Washing
Oxygen Bleaching
Mixing Apparatus
Screening Device
Impregnation
Continuous Treatment
Recirculation

28 patents:

1. 6004364 - Separation device (1999-12-21),
2. 5407103 - Apparatus for discharging particle material (1995-04-18),
3. D354063 - Chute connection to a pulp pump (1995-01-03),
4. 5366347 - Suspension pump with built-in variably eccentric liquid ring pump (1994-11-22),
5. 5366288 - Apparatus for mixing a suspension of cellulosic fibrous material and (1994-11-22),
6. 5234550 - Wall means having slots between adjacent bars for withdrawing liquid (1993-08-10),
7. 5074995 - Apparatus for separating particles from a pulp flow and dividing the (1991-12-24),
8. 5050380 - Means for receiving and subsequently emptying hydraulic fluid from a (1991-09-24),
9. 5034128 - Apparatus for dewatering pulp (1991-07-23),
10. 4890550 - Apparatus for treating fibre material containing liquid (1990-01-02),
11. 4637878 - Reciprocal movable screens in a vertically elongated vessel (1987-01-20),
12. 4556494 - Method of diffusion washing or thickening of pulp (1985-12-03),
13. 4529482 - Apparatus for the treatment of pulp having oscillating distributing (1985-07-16),
14. 4303508 - Screening device (1981-12-01),
15. 4280902 - Separation of dense impurities from a fluid (1981-07-28),
Company Overview
Kamyr Aktiebolag, based in Karlstad, Sweden, specializes in the development and manufacturing of advanced technologies for the pulp and paper industry. The company is known for its innovative solutions in chemical recovery systems, focusing on enhancing efficiency and sustainability in production processes. With a strong emphasis on research and development, Kamyr is dedicated to providing cutting-edge equipment and services that meet the evolving needs of the global market, contributing to the advancement of environmentally friendly practices in the industry.
Profile summary synthesized from public USPTO records and patent filings.

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USPTO Data Jan 1 1976 - Nov 3 2026

28 Patents

#5 in Karlstad

#247 in Sweden

#23,325 in the World

Karlstad, SE
Karlstad, Sweden

Kamyr Aktiebolag

Forward Citations = 292

23 inventors:

goldMedal Johan C Richter (12 out of 29 patents)

silverMedal Ole J Richter (6 out of 20 patents)

bronzeMedal Ulf Jansson (4 out of 27 patents)

4.  Rolf Ekholm (4 out of 29 patents)

5.  Finn Jacobsen (3 out of 15 patents)

IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: Kamyr Aktiebolag. Retrieved from https://idiyas.com/company/kamyr-aktiebolag

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

Data Sources: USPTO Patent Grant XML, Patent Center, EPO & CIPO • Normalized by IDiyas Innovation Graph. Methodology & provenance architecturePlease report any incorrect information to [email protected]
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