Issued Patents All Time
Showing 1–25 of 28 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11578463 | Dosing of nanocellulose suspension in gel phase | Esa Saukkonen, Isto Heiskanen, Kaj Backfolk, Jussi Matula | 2023-02-14 |
| 11459700 | Method of and an arrangement for adding at least one additional stock component to an approach flow system of a fiber web machine | Antti Ketolainen, Leif Piippola | 2022-10-04 |
| 11352749 | Method of and an arrangement for adding a chemical to an approach flow system of a fiber web machine | Jari Makinen, Jussi Matula | 2022-06-07 |
| 9863093 | Ply for a board from an in-line production process | Olavi Imppola, Jussi Matula, Karri Tahkola, Matti Vakevainen, Isto Heiskanen +1 more | 2018-01-09 |
| 9752280 | Arrangement for and a method of manufacturing a fibrous web | — | 2017-09-05 |
| 9708772 | Method of providing fiber web making furnish with filler, and paper or paper board | Isto Heiskanen, Olavi Imppola, Jussi Matula, Jari Räsänen, Karri Tahkola +1 more | 2017-07-18 |
| 9649607 | Arrangement for mixing a fluid to a process liquid and a method of operating the arrangement | Jussi Matula | 2017-05-16 |
| 9616399 | Method for feeding chemical into a liquid flow | — | 2017-04-11 |
| 9453305 | In-line production method for paper making process | Olavi Imppola, Jussi Matula, Karri Tahkola, Isto Heiskanen, Matti Vakevainen +1 more | 2016-09-27 |
| 9447543 | Arrangement for and a method of manufacturing a fibrous web | — | 2016-09-20 |
| 9339774 | Method and apparatus for mixing various flows into a process liquid flow | — | 2016-05-17 |
| 9181103 | Method and apparatus for in-line production of milk of lime into an in-line production process of PCC arranged in connection with a fibrous web machine | Olavi Imppola, Esko Kukkamäki, Paivi Solismaa | 2015-11-10 |
| 9028767 | Method and a reactor for mixing one or more chemicals into a process liquid flow | Jari Räsänen | 2015-05-12 |
| 8852402 | Method for producing calcium carbonate during formation of a fibrous web | Olavi Imppola, Esko Kukkamäki, Paivi Solismaa | 2014-10-07 |
| 8747619 | Method for crystallizing a filler in connection with a fiber web process, and an approach system for a fiber web machine | Esko Kukkamäki, Matti Spilä | 2014-06-10 |
| 8602634 | Method and apparatus for feeding chemical into a liquid flow | — | 2013-12-10 |
| 8480854 | Method for crystallizing a filler in connection with a fiber web process, and an approach system for a fiber web machine | Esko Kukkamäki, Matti Sipilä | 2013-07-09 |
| 8202397 | Method of and an arrangement for proportioning thick stock to a short circulation of fiber web machine | — | 2012-06-19 |
| 7758725 | Method of mixing a paper making chemical into a fiber suspension flow | — | 2010-07-20 |
| 7234857 | Method and apparatus for feeding a chemical into a liquid flow | — | 2007-06-26 |
| 6736937 | Method and apparatus for controlling the operation of the short circulation of a paper, paperboard or the like production machine | Lasse Björkstedt | 2004-05-18 |
| 6733629 | Method of controlling the operation of an approach system of a paper machine or the like web formation apparatus | — | 2004-05-11 |
| 6730193 | Wire pit | Riitta Rahkonen | 2004-05-04 |
| 6659636 | Method and apparatus for feeding a chemical into a liquid flow | — | 2003-12-09 |
| 6125688 | Method of determining pulp properties | — | 2000-10-03 |