| Patent | Date |
|---|
Breathing mask with a display unit
Grant 5,764,203 - Holmlund , et al. June 9, 1 | 1998-06-09 |
Process for producing paper
Grant 5,695,609 - Petander , et al. December 9, 1 | 1997-12-09 |
Catalyst and method for manufacturing the same
Grant 5,612,277 - H ark onen , et al. March 18, 1 | 1997-03-18 |
Method for simultaneous production of alkali metal or ammonium peroxodisulphate salts and alkali metal hydroxide
Grant 5,445,717 - Karki , et al. August 29, 1 | 1995-08-29 |
Method of preparing titanium dioxide
Grant 5,443,811 - Karvinen August 22, 1 | 1995-08-22 |
Face shield
Grant 5,410,757 - Vienamo , et al. May 2, 1 | 1995-05-02 |
Process for the preparation of hydrogen peroxide (I)
Grant 5,071,634 - Maunula , et al. December 10, 1 | 1991-12-10 |
Colored nacreous pigment and a method for its preparation
Grant 5,061,317 - Korpi , et al. * October 29, 1 | 1991-10-29 |
Reinforced catalytic unit intended for purifying exhaust gases
Grant 5,055,275 - Kanniainen , et al. October 8, 1 | 1991-10-08 |
Method and apparatus for regulating air supplied to a gas mask
Grant 4,905,687 - Ponkala March 6, 1 | 1990-03-06 |
Coated silicate particles
Grant 4,883,539 - Mattila , et al. November 28, 1 | 1989-11-28 |
Method and apparatus for improving the grinding result of a pressure chamber grinder
Grant 4,811,907 - Niemi , et al. March 14, 1 | 1989-03-14 |
Paper-making method and a combination of ingredients to be used in it
Grant 4,756,801 - Jokinen , et al. July 12, 1 | 1988-07-12 |
Method and apparatus for measuring the moisture content or dry-matter content of materials using a microwave dielectric waveguide
Grant 4,755,743 - Jakkula July 5, 1 | 1988-07-05 |
Method for manufacturing and reinforcing a catalytic unit intended for purifying exhaust gases
Grant 4,741,082 - Kanniainen , et al. May 3, 1 | 1988-05-03 |
Wood preservative
Grant 4,737,491 - Leppavuori , et al. April 12, 1 | 1988-04-12 |
Method for converting vegetable material into chemicals
Grant 4,732,708 - Ekman , et al. March 22, 1 | 1988-03-22 |
Fungistatic method
Grant 4,595,589 - Tahvonen June 17, 1 | 1986-06-17 |
Coated titanium dioxide pigment and a process for the production of the same
Grant 4,375,989 - Makinen March 8, 1 | 1983-03-08 |
Helmet
Grant D253,197 - Jarvinen October 23, 1 | 1979-10-23 |
Synergistic fungicidal compositions
Grant 4,164,582 - Harju-Jeanty August 14, 1 | 1979-08-14 |
Process for producing hydrogen fluoride from an aqueous solution of hydrogen fluoride and sulfuric acid
Grant 4,163,045 - Van der Meer , et al. July 31, 1 | 1979-07-31 |
Breathing mask, especially a half mask or a full mask provided with an inner mask
Grant 4,057,057 - Backlund November 8, 1 | 1977-11-08 |
Removing nitrates with an organic amine salt and ion exchange
Grant 3,983,222 - Lehto September 28, 1 | 1976-09-28 |
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