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Helsinki, Finland

Kemira Chemicals Oy

USPTO Granted Patents = 23

Trademarks = 1

Forward Citations = 147

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49 inventors (with patents filed for the assignee):

Reijo Aksela (5 out of 15 patents)

Ilkka Renvall (5 out of 12 patents)

Aarto Parén (4 out of 12 patents)

4. Jonni Ahlgren (2 out of 14 patents)

5. Ari Juppo (2 out of 7 patents)

6. Seppo Pohjanvesi (2 out of 3 patents)

7. Arto Pukkinen (2 out of 3 patents)

8. Kari Saari (2 out of 2 patents)

9. Marko Lahtinen (2 out of 2 patents)

10. Jukka Jäkärä (2 out of 2 patents)

11. Simo Jokinen (2 out of 8 patents)

12. Ilkka Turunen (2 out of 6 patents)

13. Kimmo Strengell (1 out of 7 patents)

14. Erkki Paatero (1 out of 11 patents)

15. Antti Vuori (1 out of 3 patents)

23 patents: Sort by Forward Citations

1. 6814949 - Process for production of phosphoric acid by crystallization of phosphoric acid hemihydrate (2004-11-09),

2. 6749727 - Hydrogenation of a working solution in a hydrogen peroxide production process (2004-06-15),

3. 6712934 - Method for production of paper (2004-03-30),

4. 6689377 - Solid formic acid product (2004-02-10),

5. 6677478 - Process for the production of percarboxylic acid (2004-01-13),

6. 6677477 - Process for the production of peracetic acid (2004-01-13),

7. 6590120 - Methods for the preparation of an N-bis-[2-(1,2-dicarboxy-ethoxy)-ethyl]amine derivative and products of the methods and their uses (2003-07-08),

8. 6492551 - Method for manufacturing alkali metal or alkaline-earth metal formate (2002-12-10),

9. 6429333 - Method for preparing formic acid (2002-08-06),

10. 6387998 - Process for preparing a cationically modified (meth)acrylamide polymer and use of the polymer (2002-05-14),

11. 6372035 - Hydrophobising system for paper or similar fiber product (2002-04-16),

12. 6331192 - Bleaching of chemical pulp and treatment with a chelating agent (2001-12-18),

13. 6270738 - Process for preparing usable products from an impure ferric sulfate solution (2001-08-07),

14. 6270564 - Process for the bleaching of pigments (2001-08-07),

15. 6264790 - Process for the peracid bleaching of chelated chemical pulp (2001-07-24),

Kemira Chemicals Oy is a global chemicals company that provides expertise and tailored solutions for water-intensive industries. With a focus on sustainable and innovative solutions, Kemira offers a wide range of products and services to improve water quality, optimize processes, and enhance efficiency and performance. Their offerings include chemicals for water treatment, industrial and municipal applications, as well as additives for the paper, oil and gas, mining, and construction industries.

This text is generated by artificial intelligence and may not be accurate.

Company Badge

USPTO Data Jan 1 1976 - Dec 30 2025

23 Patents

#42 in Helsinki

#144 in Finland

#26,820 in the World

Helsinki, Finland

Kemira Chemicals Oy

Forward Citations = 147

49 inventors:

Reijo Aksela (5 out of 15 patents)

Ilkka Renvall (5 out of 12 patents)

Aarto Parén (4 out of 12 patents)

4. Jonni Ahlgren (2 out of 14 patents)

5. Ari Juppo (2 out of 7 patents)

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