For the Inventor, By the Inventor

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Glens Falls, NY, United States of America

Ahlstrom Machinery, Inc.

USPTO Granted Patents = 53

Trademarks = 1

Forward Citations = 441

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64 inventors (with patents filed for the assignee):

J Robert Prough (17 out of 52 patents)

Bruno S Marcoccia (13 out of 36 patents)

C Bertil Stromberg (10 out of 47 patents)

4. Joseph R Phillips (10 out of 39 patents)

5. R Fred Chasse (9 out of 18 patents)

6. Richard O Laakso (9 out of 21 patents)

7. Kaj Henricson (8 out of 63 patents)

8. Rolf C Ryham (5 out of 35 patents)

9. Jerry R Johanson (4 out of 37 patents)

10. Jan T Richardsen (4 out of 15 patents)

11. Mark D Barrett (3 out of 13 patents)

12. Brian F Greenwood (3 out of 29 patents)

13. Victor L Bilodeau (3 out of 9 patents)

14. J Wayne Chamblee (3 out of 8 patents)

15. Erwin D Funk (3 out of 24 patents)

Core Competencies:

Cellulose Pulp

Gas Separation

Continuous Digester

Bleaching

Dissolved Solids

Chip Feeding

Filtrate Treatment

Pressure Control

Heat Recovery

Dilution Liquor

Pulping

Chemical Recovery

53 patents: Sort by Forward Citations

1. 6153300 - Bleaching cellulose pulp having cleanliness which varies significantly (2000-11-28),

2. 6123808 - Distribution of dilution liquor to the discharge of a cellulose pulp (2000-09-26),

3. 6120647 - Simplified liquid removal system for a cellulose pulp digester (2000-09-19),

4. 6120252 - Gas separation control in a centrifugal pump/vacuum pump (2000-09-19),

5. 6106668 - Method for feeding comminuted fibrous material (2000-08-22),

6. 6106667 - Treatment of recycled bleach plant filtrates (2000-08-22),

7. 6086712 - DOM control in cellulose pulp production (2000-07-11),

8. 6071331 - Method and apparatus for separating gas from a gaseous material (2000-06-06),

9. 6039841 - Screen having inclined slots for use in a continuous digester (2000-03-21),

10. 6024837 - Low temperature gas phase continuous digester (2000-02-15),

11. 6024227 - Tramp material removal from pulp feed systems (2000-02-15),

12. 6010594 - Method of bleaching pulp with chlorine-free chemicals wherein a (2000-01-04),

13. 5985096 - Vertical pulping digester having substantially constant diameter (1999-11-16),

14. 5968314 - Chip feeding for a digester (1999-10-19),

15. 5958181 - Continuous cooking with a two-stage cool impregnation (1999-09-28),

Company Overview

Ahlstrom Machinery, Inc., based in Glens Falls, NY, specializes in the development and manufacturing of advanced technologies for cellulose pulp production. The company focuses on critical processes such as gas separation, continuous digesters, and bleaching, enhancing the efficiency and sustainability of pulp manufacturing. Ahlstrom's expertise extends to chip feeding, filtrate treatment, and pressure control, positioning it as a key player in the cellulose industry, dedicated to innovation and operational excellence.

Profile summary synthesized from public USPTO records and patent filings.

Company Badge

USPTO Data Jan 1 1976 - Oct 13 2026

53 Patents

#4 in Glens Falls, NY

#407 in New York

#6,670 in US

#13,334 in the World

Glens Falls, NY, United States of America

Ahlstrom Machinery, Inc.

Forward Citations = 441

64 inventors:

J Robert Prough (17 out of 52 patents)

Bruno S Marcoccia (13 out of 36 patents)

C Bertil Stromberg (10 out of 47 patents)

4. Joseph R Phillips (10 out of 39 patents)

5. R Fred Chasse (9 out of 18 patents)

IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: Ahlstrom Machinery, Inc.. Retrieved from https://idiyas.com/company/ahlstrom-machinery

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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