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Karlstad, Sweden

Kvaerner Pulping Technologies Ab

USPTO Granted Patents = 25

Forward Citations = 169

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45 inventors (with patents filed for the assignee):

Ake Backlund (5 out of 16 patents)

Johanna Svanberg (4 out of 7 patents)

Erik Nilsson (3 out of 3 patents)

4. Petter Tibbling (3 out of 4 patents)

5. Finn Oulie (3 out of 6 patents)

6. Stig Andtbacka (3 out of 4 patents)

7. Soren Soderqvist (3 out of 4 patents)

8. Per Toreld (2 out of 3 patents)

9. Rolf Ekholm (2 out of 29 patents)

10. Anders Bergqvist (2 out of 6 patents)

11. Lars-Ove Larsson (2 out of 2 patents)

12. Lennart Bergkvist (2 out of 3 patents)

13. Jan G Carlsson (2 out of 3 patents)

14. Martin Wimby (2 out of 5 patents)

15. Magnus Ingelman (1 out of 6 patents)

Core Competencies:

Bleaching Processes

Chemical Pulp

Pressurized Bleaching

Pulp Cooking

Screening Device

Recovery Boiler

Digester

Fluidizing Bed

Waste Liquors

Cellulosic Fiber

Energy Recovery

Hydraulic Digester

25 patents: Sort by Forward Citations

1. 6325891 - Method of bleaching pulp without using chlorine chemicals in a (QP)Z bleaching sequence (2001-12-04),

2. 6149766 - Process for peroxide bleaching of chemical pulp in a pressurized (2000-11-21),

3. 5972228 - Filters employing 'filling bodies' to reduce the amount of backwashing (1999-10-26),

4. 5919337 - Method of continuously isothermally cooking of pulp (1999-07-06),

5. 5858170 - Method for pressurized peroxide bleaching (1999-01-12),

6. 5827401 - Screen system for a continuous digester (1998-10-27),

7. 5803020 - Recovery boiler for combustion of waste liquors (1998-09-08),

8. 5705031 - Process for removing and washing dregs from green liquor in a kraft pulp (1998-01-06),

9. 5698079 - Arrangement for spreading paper pulp in a container (1997-12-16),

10. 5685342 - Apparatus for mixing a first fluid into a second fluid (1997-11-11),

11. 5676797 - Apparatus for removing high-volume, low concentration non-condensable (1997-10-14),

12. 5658428 - Method for impregnation in a single-vessel hydraulic digester (1997-08-19),

13. 5644996 - Method and arrangement for reburning lime sludge in a fluidizing bed (1997-07-08),

14. 5591303 - Process for operating a digester (1997-01-07),

15. 5571377 - Process for peroxide bleaching of chemical pulp in a pressurized bleach (1996-11-05),

Company Overview

Kvaerner Pulping Technologies AB, based in Karlstad, Sweden, specializes in the development and manufacturing of advanced technologies for the pulp and paper industry. The company focuses on innovative solutions that enhance the efficiency and sustainability of pulp production processes. With a commitment to research and development, Kvaerner Pulping Technologies aims to provide cutting-edge equipment and systems that meet the evolving needs of the global market, contributing to environmentally responsible practices in the industry.

Profile summary synthesized from public USPTO records and patent filings.

Company Badge

USPTO Data Jan 1 1976 - Oct 6 2026

25 Patents

#6 in Karlstad

#270 in Sweden

#25,681 in the World

Karlstad, Sweden

Kvaerner Pulping Technologies Ab

Forward Citations = 169

45 inventors:

Ake Backlund (5 out of 16 patents)

Johanna Svanberg (4 out of 7 patents)

Erik Nilsson (3 out of 3 patents)

4. Petter Tibbling (3 out of 4 patents)

5. Finn Oulie (3 out of 6 patents)

IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: Kvaerner Pulping Technologies Ab. Retrieved from https://idiyas.com/company/kvaerner-pulping-technologies-ab

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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