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Karlstad, Sweden

Kvaerner Pulping Ab

USPTO Granted Patents = 109

CIPO Patents = 1

Trademarks = 1

Forward Citations = 448

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103 inventors (with patents filed for the assignee):

Vidar Martin Snekkenes (22 out of 54 patents)

Rolf Ekholm (13 out of 29 patents)

Lennart Gustavsson (10 out of 29 patents)

4. Ulf Jansson (8 out of 27 patents)

5. Johan Engstrom (7 out of 7 patents)

6. Bengt H Nilsson (7 out of 25 patents)

7. Stefan Hansson (6 out of 6 patents)

8. Krister Olsson (5 out of 12 patents)

9. Bo Clarstrom (5 out of 7 patents)

10. Martin Ragnar (5 out of 5 patents)

11. Lars Gunnar Olausson (5 out of 10 patents)

12. Kent Strid (5 out of 14 patents)

13. Christofer Lindgren (4 out of 8 patents)

14. Mikael H Lindstrom (4 out of 20 patents)

15. Olle Wennberg (4 out of 5 patents)

Core Competencies:

Chemical Cellulose Pulp

Oxygen Delignification

Continuous Cooking

Pulp Digestion

Fibre Suspension Treatment

Evaporation Apparatus

Lignocellulosic Fiber

Washing Liquid Supply

Heat Economy

Fluid Mixing

Dewatering Arrangement

Condensate Purification

109 patents: Sort by Forward Citations

1. 7217338 - Process for continuously cooking chemical cellulose pulp (2007-05-15),

2. 7214291 - Method for the modification of cellulose fibres (2007-05-08),

3. 7179437 - Feeding device and process and feeding system which utilize the feeding device (2007-02-20),

4. 7156952 - Method and arrangement for oxygen delignification of cellulose pulp (2007-01-02),

5. 7147230 - Sealing device and sleeve and holding element for such (2006-12-12),

6. 7112256 - Method for continuous cooking of chemical pulp to improve heat economy (2006-09-26),

7. 7077931 - Method and bleaching line with a main conduit for wash liquor (2006-07-18),

8. 6966970 - Method for supplying washing liquid to a process for cooking cellulose pulp (2005-11-22),

9. 6946072 - Method and apparatus for washing a fibre suspension (2005-09-20),

10. 6946056 - Method for regulating the manufacturing of pulp by optically measuring the amount of hexenuronic acid (2005-09-20),

11. 6887345 - Process and device for evaporating liquids, for example black liquor from cellulose cooking, which contain solid and dissolved substances (2005-05-03),

12. 6843885 - Method for controlling the cooking temperature in a continuous vapour phase digester (2005-01-18),

13. 6841036 - Process for the oxygen delignification of pulp in two stages with higher pressure in the second stage (2005-01-11),

14. 6808596 - System for the oxygen delignification of pulp consisting of lignocellulose-containing material (2004-10-26),

15. 6793809 - Pipe system for receiving and transporting lime sludge from a white liquor filter (2004-09-21),

Kvaerner Pulping AB is a leading Swedish company specializing in the design and construction of state-of-the-art pulp and paper mills. With extensive experience in the industry, we offer comprehensive solutions that cater to the unique needs of pulp and paper manufacturers worldwide. Our innovative technology, sustainable practices, and commitment to quality enable us to deliver efficient and reliable solutions for our clients. Visit our website to explore our range of services and learn more about how we can help your business.

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

Company Badge

USPTO Data Jan 1 1976 - Dec 9 2025

109 Patents

#1 in Karlstad

#71 in Sweden

#7,003 in the World

Karlstad, Sweden

Kvaerner Pulping Ab

Forward Citations = 448

103 inventors:

Vidar Martin Snekkenes (22 out of 54 patents)

Rolf Ekholm (13 out of 29 patents)

Lennart Gustavsson (10 out of 29 patents)

4. Ulf Jansson (8 out of 27 patents)

5. Johan Engstrom (7 out of 7 patents)

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