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Noormarkku, Finland

A. Ahlstrom Corporation

USPTO Granted Patents = 230

CIPO Patents = 10

Trademarks = 1

Forward Citations = 2,195

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173 inventors (with patents filed for the assignee):

Folke Engstrom (26 out of 31 patents)

Kaj Henricson (25 out of 63 patents)

Juhani M Isaksson (15 out of 22 patents)

4. Timo Hyppanen (14 out of 24 patents)

5. Toivo J Niskanen (14 out of 23 patents)

6. Reijo Vesala (13 out of 27 patents)

7. Vesa J Vikman (13 out of 23 patents)

8. Olavi E Pikka (12 out of 27 patents)

9. Matti A Hiltunen (10 out of 14 patents)

10. Reijo J Kuivalainen (10 out of 12 patents)

11. Jukka Timperi (9 out of 10 patents)

12. Pentti A Vikio (9 out of 9 patents)

13. Erkki J Kiiskila (8 out of 15 patents)

14. Frey A Frejborg (8 out of 8 patents)

15. Rolf E Malmstrom (7 out of 10 patents)

Core Competencies:

Fiber Suspension

Gas Purification

Energy Recovery

Fluidized Bed

Centrifugal Pump

Waste Gases

Chemical Recovery

Ozone Bleaching

Emissions Reduction

High Temperature Gases

Pressurized Reactor

Sulfidity Control

230 patents: Sort by Forward Citations

1. 5900158 - Method and apparatus for thickening lime mud with a disc filter (1999-05-04),

2. 5851350 - Method and apparatus for pumping cellulose pulp (1998-12-22),

3. 5842833 - Gas separation control in a centrifugal pump vacuum pump (1998-12-01),

4. 5791778 - Method and apparatus for mixing gaseous chemical to fiber suspension (1998-08-11),

5. 5759495 - Method and apparatus for treating hot gases (1998-06-02),

6. 5711789 - Apparatus for pumping gas-containing fiber suspensions (1998-01-27),

7. 5699746 - Method and apparatus for feeding air into a furnace (1997-12-23),

8. 5621934 - Mattress (1997-04-22),

9. 5607545 - Ozone bleaching process utilizing a fluidizing mixer and (1997-03-04),

10. 5585071 - Method and apparatus for treating hot gases (1996-12-17),

11. 5575395 - Method and apparatus for screening fibrous suspensions (1996-11-19),

12. 5571384 - Method and arrangement for the treatment of a fiber suspension (1996-11-05),

13. 5562884 - Reducing N.sub.2 O emissions when burning nitrogen-containing fuels in (1996-10-08),

14. 5549788 - Minimal effluents discharge pulp mill with chemical recovery (1996-08-27),

15. 5547083 - Apparatus for treating fiber suspension (1996-08-20),

Company Overview

A. Ahlstrom Corporation, headquartered in Noormarkku, Finland, specializes in advanced fiber suspension treatment technologies. The company focuses on developing innovative solutions for various applications, including gas purification, energy recovery, and chemical recovery processes. Ahlstrom's expertise extends to fluidized bed systems, centrifugal pumps, and ozone bleaching, contributing to enhanced efficiency and sustainability in industrial operations. The organization is committed to advancing its core technologies to meet the evolving needs of its global clientele.

Profile summary synthesized from public USPTO records and patent filings.

Company Badge

USPTO Data Jan 1 1976 - Oct 13 2026

230 Patents

#1 in Noormarkku

#19 in Finland

#3,732 in the World

Noormarkku, Finland

A. Ahlstrom Corporation

Forward Citations = 2,195

173 inventors:

Folke Engstrom (26 out of 31 patents)

Kaj Henricson (25 out of 63 patents)

Juhani M Isaksson (15 out of 22 patents)

4. Timo Hyppanen (14 out of 24 patents)

5. Toivo J Niskanen (14 out of 23 patents)

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

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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