For the Inventor, By the Inventor

Enter assignee name

Noormarkku, Finland

A. Ahlstrom Osakeyhtio

USPTO Granted Patents = 78

Trademarks = 1

Forward Citations = 966

Loading Chart...

Loading Chart...

70 inventors (with patents filed for the assignee):

Timo Sarpaneva (10 out of 10 patents)

Frey Viking Sundman (8 out of 8 patents)

Jorma A Tuomaala (5 out of 7 patents)

4. Toivo J Niskanen (4 out of 23 patents)

5. Folke Engstrom (3 out of 31 patents)

6. Tapio Waris (3 out of 3 patents)

7. Jorma H Vennola (3 out of 3 patents)

8. Seppo Kalervo Ruottu (2 out of 19 patents)

9. Kaj Henricson (2 out of 63 patents)

10. Jorma J Nieminen (2 out of 13 patents)

11. Jorma Aarne Tuomaala (2 out of 2 patents)

12. Heikki Merilainen (2 out of 2 patents)

13. Johan E Gullichsen (2 out of 20 patents)

14. Sakari Heikkila (2 out of 2 patents)

15. Veli T Wirkkala (2 out of 2 patents)

Core Competencies:

Fluidized Bed Reactor

Fiber Processing

Timber Measurement

Catalyst Bed

Centrifugal Pump

Flaw Detection

Web Forming

Pulp Production

Dewatering Blade

Thermal Stabilizing

Chemical Losses

Continuous Material Web

78 patents: Sort by Forward Citations

1. 5141720 - Catalyst bed for exothermal reactions between gases and/or other fluids (1992-08-25),

2. 4874584 - Fluidized bed reactor (1989-10-17),

3. 4867948 - Fluidized bed reactor (1989-09-19),

4. 4687146 - Apparatus for fiberizing and screening of fibrous materials (1987-08-18),

5. 4619736 - Apparatus for defiberizing, screening and pumping cellulose pulp or (1986-10-28),

6. 4607212 - Method and apparatus for detection of knots or the like in sawn lumber (1986-08-19),

7. 4594052 - Centrifugal pump for liquids containing solid material (1986-06-10),

8. 4558477 - Process for washing fibre stock (1985-12-17),

9. 4557802 - Apparatus for affecting a web drained on a wire (1985-12-10),

10. 4557120 - Apparatus for washing fibre stock (1985-12-10),

11. D281432 - Chipping blade (1985-11-19),

12. 4554052 - Method and apparatus for web forming (1985-11-19),

13. 4552619 - Thermal stabilizing system for a headbox of a papermachine (1985-11-12),

14. 4534151 - Method and apparatus for packaging paper rolls (1985-08-13),

15. 4533433 - Method of covering the chemical losses in pulp production (1985-08-06),

Company Overview

A. Ahlstrom Osakeyhtio, based in Noormarkku, Finland, specializes in advanced technologies related to fluidized bed reactors and fiber processing. The company is recognized for its expertise in various core technology areas, including timber measurement, catalyst beds, and centrifugal pumps. A. Ahlstrom Osakeyhtio also focuses on innovative solutions for flaw detection, web forming, and pulp production, contributing to the development of efficient and sustainable processes in the manufacturing sector.

Profile summary synthesized from public USPTO records and patent filings.

Company Badge

USPTO Data Jan 1 1976 - Oct 20 2026

78 Patents

#2 in Noormarkku

#49 in Finland

#9,688 in the World

Noormarkku, Finland

A. Ahlstrom Osakeyhtio

Forward Citations = 966

70 inventors:

Timo Sarpaneva (10 out of 10 patents)

Frey Viking Sundman (8 out of 8 patents)

Jorma A Tuomaala (5 out of 7 patents)

4. Toivo J Niskanen (4 out of 23 patents)

5. Folke Engstrom (3 out of 31 patents)

IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: A. Ahlstrom Osakeyhtio. Retrieved from https://idiyas.com/company/a-ahlstrom-osakeyhtio

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]

Loading…