Issued Patents All Time
Showing 1–12 of 12 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8828910 | Process for the preparation of peroxy acids | Reijo Aksela | 2014-09-09 |
| 8066846 | Composition and process for the treatment of fibre material | Aarto Paren, Jukka Jakara, Jukka Rautiainen, Reijo Aksela, Anna Ilomäki +4 more | 2011-11-29 |
| 8048264 | Composition and process for the treatment of fibre material | Aarto Paren, Jonni Ahlgren, Jukka Jakara, Jukka Rautiainen | 2011-11-01 |
| 7988821 | Process for the treatment of fibre material and new composition | Seung-Hoon Lee, Jonni Ahlgren, Jukka Jakara, Aarto Paren, Jukka Rautiainen | 2011-08-02 |
| 7867357 | Polymer composition for peroxide bleaching of cellulosic fibre material and processes for peroxide bleaching | Jonni Ahlgren, Aarto Paren, Jukka Jakara, Timo Härmä | 2011-01-11 |
| 7754048 | Bleaching of cellulosic fibre material with peroxide using polymers as a stabiliser | Aarto Paren, Jukka Jakara, Jonni Ahlgren, Riitta Laitinen, Jussi Nikkarinen +1 more | 2010-07-13 |
| 7674851 | Polymer composition for peroxide bleaching of cellulosic fibre material and processes for peroxide bleaching | Jonni Ahlgren, Aarto Paren, Jukka Jakara, Timo Härmä | 2010-03-09 |
| 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 | Reijo Aksela, Aarto Paren | 2003-07-08 |
| 6331192 | Bleaching of chemical pulp and treatment with a chelating agent | Jukka Jakara, Reijo Aksela, Aarto Paren | 2001-12-18 |
| 6264790 | Process for the peracid bleaching of chelated chemical pulp | Jukka Jakara, Aarto Paren, Reijo Aksela | 2001-07-24 |
| 6262008 | Stabilized sodium carbonate peroxyhydrate | Timo Korvela | 2001-07-17 |
| 6093849 | N-bis- or N-tris-[(1,2-dicarboxy-ethoxy)-ethyl]-amine derivatives and preparation and use of the same | Reijo Aksela, Arto Paren | 2000-07-25 |