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Helsinki, Finland

Valmet Corporation

USPTO Granted Patents = 372

% Expired Patents = 1.3

CIPO Patents = 3

EPO Patents = 11

Trademarks = 16

Forward Citations = 1,739

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375 inventors (with patents filed for the assignee):

Jorma Laapotti (17 out of 43 patents)

Jorma Kinnunen (16 out of 24 patents)

Jukka Koskinen (14 out of 15 patents)

4. Vilho Nissinen (12 out of 29 patents)

5. Pekka Kivioja (12 out of 18 patents)

6. Reima Kerttula (12 out of 19 patents)

7. Antti Kuhasalo (12 out of 17 patents)

8. Juha Kaihovirta (12 out of 15 patents)

9. Jouko Hautala (10 out of 25 patents)

10. Jyrki Huovila (9 out of 17 patents)

11. Ari Linsuri (9 out of 9 patents)

12. Michael H Odell (9 out of 21 patents)

13. Antti Poikolainen (8 out of 20 patents)

14. Pekka Koivukunnas (8 out of 38 patents)

15. Jorma Snellman (8 out of 19 patents)

Core Competencies:

Through-Air Drying

Dust Handling

Web Guiding

Calendering

Paper Coating

Yankee Drying

Winding

Roll Detection

Suction Box

Headbox

Transfer Systems

Process Monitoring

372 patents: Sort by Forward Citations

1. 12736288 - Heat exchanger with tube bundle comprising at least two sections (2026-09-15),

2. 11608595 - Through-air apparatus with adjustable deckle (2023-03-21),

3. 11168442 - Through-air apparatus with tension cam mechanism (2021-11-09),

4. 11150019 - Through air drying systems and methods with hot air injection (2021-10-19),

5. 11007461 - Dust-handling device for collecting and handling dust in a paper-making environment (2021-05-18),

6. 10739072 - Through air drying and bonding systems and methods for maintaining uniform supply air temperature (2020-08-11),

7. 10712090 - Through air drying systems and methods with hot air injection (2020-07-14),

8. 10533285 - System and a method for collecting and handling dust in a paper-making environment (2020-01-14),

9. 10533283 - Reduced diameter foraminous exhaust cylinder (2020-01-14),

10. 10351376 - Winder and a method for winding a roll from a fibrous web (2019-07-16),

11. 10260200 - Yankee drying hood arrangement, a yankee drying cylinder fitted with a yankee drying hood arrangement and a method of drying a fibrous web (2019-04-16),

12. 9702084 - Process and a machine for making a tissue paper web (2017-07-11),

13. 6813867 - Method of and apparatus for threading of a wrapper web into a nip between drawing rolls in a wrapping device (2004-11-09),

14. 6811654 - Method and arrangement for calendering paper and board before and after coating (2004-11-02),

15. 6645349 - Method and device for conditioning of a roll, in particular of a roll in a paper machine or in a paper finishing device (2003-11-11),

Valmet Corporation, headquartered in Helsinki, Finland, specializes in the development and manufacturing of technologies and services for the paper industry. The company focuses on enhancing production efficiency and sustainability through advanced solutions in paper manufacturing processes. Key technological areas include through-air drying, dust handling, web guiding, calendering, paper coating, Yankee drying, winding, and roll detection. Valmet is committed to innovation and supports its clients in optimizing their operations globally.

Profile summary based on public USPTO records.

Company Badge

USPTO Data Jan 1 1976 - Sep 29 2026

Valmet Corporation

372 Patents

#3 in Helsinki

#10 in Finland

#2,478 in the World

Helsinki, Finland

Valmet Corporation

Forward Citations = 1,739

375 inventors:

Jorma Laapotti (17 out of 43 patents)

Jorma Kinnunen (16 out of 24 patents)

Jukka Koskinen (14 out of 15 patents)

4. Vilho Nissinen (12 out of 29 patents)

5. Pekka Kivioja (12 out of 18 patents)

Please report any incorrect information to [email protected]

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