Issued Patents All Time
Showing 1–16 of 16 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7157988 | Voltage controlled resistor and a controlling method | — | 2007-01-02 |
| 6740198 | Method and arrangement for mixing pulp components in the manufacture of paper | Jussi Ahola, Elina Pohjala, Sakari Soini, Veli-Matti Rajala, Kati Lindroos +1 more | 2004-05-25 |
| 6737933 | Circuit topology for attenuator and switch circuits | — | 2004-05-18 |
| 6551459 | Regulation system for the short circulation and headbox of a paper machine or equivalent | Juhana Lumiala, Hannu Lepomäki, Petri Jetsu, Hannu Karema, Markku Kellomaki +1 more | 2003-04-22 |
| 6544387 | Multi-layer headbox for a paper/board machine | Jyrki Huovila, Juha Kinnunen, Ari Linsuri | 2003-04-08 |
| 6491792 | Apparatus for controlling a headbox in a paper machine | John F. Shakespeare, Juha Kniivila | 2002-12-10 |
| 6432275 | Headbox of a paper/board machine by whose means the basis weight of the web can be regulated | Jyrki Huovila, Antti Suoperä, Tapani Nyman | 2002-08-13 |
| 6284100 | Method and apparatus for controlling a headbox in a paper machine | John F. Shakespeare, Juha Kniivila | 2001-09-04 |
| 5825653 | Method for overall regulation of a former of a paper machine or equivalent | Jyrki Huovila, Jari Hamalainen, Pekka Pakarinen | 1998-10-20 |
| 5812404 | Method for overall regulation of the headbox of a paper machine or equivalent | Jari Hamalainen | 1998-09-22 |
| 5688372 | Method and device in the regulation of a headbox | Jyrki Huovila, Ari Linsuri, Michael Odell | 1997-11-18 |
| 5674363 | Method and device in the regulation of a headbox | Jyrki Huovila, Olavi Viitanen | 1997-10-07 |
| 5569360 | Multi-layer headbox | Jyrki Huovila, Michael Odell | 1996-10-29 |
| 5545293 | Method and device in the regulation of a headbox | Jyrki Huovila, Ari Linsuri, Michael Odell | 1996-08-13 |
| 5490905 | Method in the regulation of a multi-layer headbox and a multi-layer headbox | Jyrki Huovila, Michael Odell | 1996-02-13 |
| 5397438 | Method and device for reduction and equalization of transverse shrinkage of paper in single-wire draw in a drying section | Heikki Ilvespaa, Kari Holopainen | 1995-03-14 |