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For the Inventor, By the Inventor

Helsinki, FL, United States of America

Kemira Oyj


USPTO Granted Patents = 293



Trademarks = 50

Forward Citations = 541

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386 inventors (with patents filed for the assignee):

goldMedal Matti Hietaniemi (34 out of 34 patents)

silverMedal Asko Karppi (26 out of 29 patents)

bronzeMedal Marko Kolari (25 out of 27 patents)

4.  Iiris Joensuu (20 out of 20 patents)

5.  Scott Rosencrance (19 out of 33 patents)

6.  Chen Lu (18 out of 24 patents)

7.  Marjatta Piironen (17 out of 17 patents)

8.  Yuping Luo (16 out of 25 patents)

9.  Mehrdad Hesampour (15 out of 16 patents)

10.  Anneli Lepo (12 out of 13 patents)

11.  Jonni Ahlgren (11 out of 14 patents)

12.  Vladimir A Grigoriev (11 out of 25 patents)

13.  Tarja Turkki (10 out of 10 patents)

14.  Mikko Virtanen (10 out of 15 patents)

15.  Jaakko Ekman (10 out of 11 patents)


Core Competencies:
Glyoxylation
Industrial Wastewater Treatment
Pulp Quality Monitoring
Microplastics Removal
Cellulose Derivatives
Paper Manufacturing
Hydrophobic Control
Enhanced Oil Recovery
Microbial Control
Starch Retention
Coating Compositions
Polymer Compositions

293 patents:

1. 12497356 - Stable formulation of arylsulfonylpropenenitriles (2025-12-16),
2. 12481275 - Controller (2025-11-25),
3. 12467204 - Method for on-site glyoxylation of polyacrylamide (2025-11-11),
4. 12459843 - Methods and compositions for treating industrial wastewater (2025-11-04),
5. 12454796 - Pulp quality monitoring (2025-10-28),
6. 12435472 - Surface size composition and its use (2025-10-07),
7. 12409400 - Dewatering aids (2025-09-09),
8. 12398517 - Use of a cellulose derivative and method for surface sizing (2025-08-26),
9. 12398053 - Method of monitoring and optionally controlling removal of microplastics from microplastic containing waters (2025-08-26),
10. 12392088 - Aqueous slurry for a coating colour composition for paper, board or the like (2025-08-19),
11. 12391586 - Compositions and methods for treating wastewater (2025-08-19),
12. 12338579 - Composition and method for manufacture of paper, board or the like (2025-06-24),
13. 12332612 - Method and system for monitoring a process (2025-06-17),
14. 12332174 - Method and system for determination of starch in a sample (2025-06-17),
15. 12320071 - Composition and its use for use in manufacture of paper, board or the like (2025-06-03),
Kemira Oyj is a global chemicals company serving customers in water-intensive industries. They provide expertise, chemicals, and solutions that improve water quality, energy efficiency, and environmental performance. With their extensive product portfolio and global presence, Kemira Oyj helps customers enhance their operations and sustainability.
This text is generated by artificial intelligence and may not be accurate.

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USPTO Data Jan 1 1976 - Dec 30 2025

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293 Patents

#1 in Helsinki, FL

#30 in Florida

#1,436 in US

#2,954 in the World

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Helsinki, FL, United States of America

Kemira Oyj

Forward Citations = 541

386 inventors:

goldMedal Matti Hietaniemi (34 out of 34 patents)

silverMedal Asko Karppi (26 out of 29 patents)

bronzeMedal Marko Kolari (25 out of 27 patents)

4.  Iiris Joensuu (20 out of 20 patents)

5.  Scott Rosencrance (19 out of 33 patents)

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