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Karlstad, Sweden

Valmet-Karlstad Ab

USPTO Granted Patents = 53

Forward Citations = 609

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83 inventors (with patents filed for the assignee):

Erik Brox (8 out of 15 patents)

Lars-Erik Roland Onnerlov (7 out of 7 patents)

Tord Olof Svanqvist (7 out of 8 patents)

4. Lars O Gustavsson (5 out of 8 patents)

5. Ingvar B Klerelid (4 out of 15 patents)

6. Roland Bengtsson (3 out of 5 patents)

7. Lars-Magnus Hultcrantz (3 out of 3 patents)

8. Roland Karlsson (3 out of 3 patents)

9. Mikael Nyman (3 out of 3 patents)

10. Bo Lennart Ortemo (3 out of 3 patents)

11. Tommy Rolf Karlsson (3 out of 4 patents)

12. Anders Tommy Linden (3 out of 3 patents)

13. Dennis Edward Jewitt (2 out of 12 patents)

14. Göran Ekström (2 out of 5 patents)

15. Tommy Göran Andersson (2 out of 2 patents)

Core Competencies:

Shoe Press

Headbox

Web Drying

Reel-Up

Papermaking Machine

Adhesive Dispenser

Multi-Layer Headbox

Creping Conditions

Fibrous Web

Tissue Paper

Stock Feeding

Winding Paper

53 patents: Sort by Forward Citations

1. 6805317 - Adhesive dispenser in a reel-up in a paper machine (2004-10-19),

2. 6398916 - Simplified through-air drying paper making machine having a twin wire forming section (2002-06-04),

3. 6355143 - Method and device for oil evacuation from a shoe press unit (2002-03-12),

4. 6325896 - Apparatus for transferring a fast running fibrous web from a first location to a second location (2001-12-04),

5. 6309512 - Device for impulse-pressing a web (2001-10-30),

6. 6287426 - Paper machine for manufacturing structured soft paper (2001-09-11),

7. 6261415 - Paper machine (2001-07-17),

8. 6260788 - Reel-up and associated method (2001-07-17),

9. 6199296 - Seal arrangement for through-air drying papermaking machine (2001-03-13),

10. 6176975 - Headbox (2001-01-23),

11. 6169290 - Method and measuring device for measuring at an envelope surface (2001-01-02),

12. 6165324 - Multi-layer headbox and separator vane therefor (2000-12-26),

13. 6159342 - Shoe press (2000-12-12),

14. 6152670 - Storage arrangement for cores of a papermaking machine (2000-11-28),

15. 6145778 - Reel-up and method of controlling nip load therein (2000-11-14),

Company Overview

Valmet-Karlstad Ab is a prominent player in the papermaking technology sector, specializing in advanced solutions that enhance the efficiency and quality of paper production. The company focuses on key technologies such as shoe presses, headboxes, web drying systems, and reel-up mechanisms, which are essential for modern papermaking processes. With a strong emphasis on innovation, Valmet-Karlstad Ab also develops multi-layer headboxes and adhesive dispensers, contributing to the evolution of sustainable and high-performance paper manufacturing in Karlstad, Sweden.

Profile summary synthesized from public USPTO records and patent filings.

Company Badge

USPTO Data Jan 1 1976 - Oct 20 2026

53 Patents

#3 in Karlstad

#131 in Sweden

#13,348 in the World

Karlstad, Sweden

Valmet-Karlstad Ab

Forward Citations = 609

83 inventors:

Erik Brox (8 out of 15 patents)

Lars-Erik Roland Onnerlov (7 out of 7 patents)

Tord Olof Svanqvist (7 out of 8 patents)

4. Lars O Gustavsson (5 out of 8 patents)

5. Ingvar B Klerelid (4 out of 15 patents)

IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: Valmet-Karlstad Ab. Retrieved from https://idiyas.com/company/valmet-karlstad-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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