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For the Inventor, By the Inventor

Helsinki, Finland

Andritz Oy


USPTO Granted Patents = 116

% Expired Patents = 25.9



Trademarks = 4

Forward Citations = 206

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179 inventors (with patents filed for the assignee):

goldMedal Pekka Kokko (16 out of 27 patents)

silverMedal Kari Saviharju (12 out of 13 patents)

bronzeMedal Olavi E Pikka (10 out of 27 patents)

4.  Janne Vehmaa (9 out of 11 patents)

5.  Jorma Simonen (8 out of 9 patents)

6.  Kari Peltonen (7 out of 15 patents)

7.  Kaj Henricson (6 out of 63 patents)

8.  Pekka Tervola (5 out of 6 patents)

9.  Sami Siik (4 out of 5 patents)

10.  Jouni Havumaki (4 out of 4 patents)

11.  Bruce Kirkpatrick (4 out of 4 patents)

12.  Jouni Matula (3 out of 30 patents)

13.  Outi Poukka (3 out of 3 patents)

14.  Auvo Kettunen (3 out of 3 patents)

15.  Hannu Råmark (3 out of 3 patents)


Core Competencies:
Chemical Pulp
Flue Gas Emissions
Lime Mud Treatment
Recovery Boiler
Pulp Bleaching
Lignin Recovery
Distillation Methods
Heat Recovery
Microcrystalline Cellulose
Steam Generation
Wood Processing
Filtration Apparatus

116 patents:

1. 12668920 - Accept tank mixing arrangement (2026-06-30),
2. 12503417 - Method of purifying raw methanol (2025-12-23),
3. 12479876 - Method of removing volatile compounds from a lignin-containing material, use of a distillation method, and a lignin-containing material (2025-11-25),
4. 12467539 - Sealing arrangement (2025-11-11),
5. 12379104 - Method and an arrangement for measuring mass changes of heat exchangers of a steam boiler (2025-08-05),
6. 12331835 - Method and arrangement for washer seal control (2025-06-17),
7. 12298004 - Determining one or more proportional particle group shares in flue gas of a recovery boiler (2025-05-13),
8. 12297297 - Process for producing microcrystalline cellulose (2025-05-13),
9. 12233427 - Reject chamber of a centrifugal cleaner and a centrifugal cleaner (2025-02-25),
10. 12195918 - Automatic monitoring of smelt flow exiting a recovery boiler (2025-01-14),
11. 12173798 - Sealing arrangement for detecting thickness of a sealing element of a seal (2024-12-24),
12. 12173451 - Arrangement and method for degassing a pump (2024-12-24),
13. 12134859 - Determining the reduction rate of a recovery boiler (2024-11-05),
14. 12129598 - Arrangement for installation of monitoring sensors of a treatment vessel for lignocellulosic material (2024-10-29),
15. 12054886 - Method for producing oxidized lignin in kraft pulp mill (2024-08-06),
Andritz Oy, based in Helsinki, specializes in advanced technologies for chemical pulp production. The company focuses on enhancing processes related to chemical pulp, including flue gas emissions management, lime mud treatment, and recovery boiler systems. With expertise in pulp bleaching and lignin recovery, Andritz Oy is committed to sustainable practices and innovation in the pulp and paper industry. Their solutions also encompass distillation methods and heat recovery, contributing to efficient resource utilization and environmental stewardship.
Profile summary based on public USPTO records.

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USPTO Data Jan 1 1976 - Sep 29 2026

Andritz Oy
116 Patents

#15 in Helsinki

#41 in Finland

#6,840 in the World

Helsinki, FI
Helsinki, Finland

Andritz Oy

Forward Citations = 206

179 inventors:

goldMedal Pekka Kokko (16 out of 27 patents)

silverMedal Kari Saviharju (12 out of 13 patents)

bronzeMedal Olavi E Pikka (10 out of 27 patents)

4.  Janne Vehmaa (9 out of 11 patents)

5.  Jorma Simonen (8 out of 9 patents)

Please report any incorrect information to [email protected]
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