Issued Patents All Time
Showing 26–50 of 60 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5542361 | Method for adjusting the supply of a reaction gas to be fed into a smelting furnace, and a multipurpose burner designed for realizing the same | Valto J. Makitalo | 1996-08-06 |
| 5505434 | Method and apparatus for improving heat and dust recovery in a waste heat boiler | Valto J. Makitalo | 1996-04-09 |
| 5443620 | Method for oxidizing pulverous fuel with two gases having different oxygen contents | Pentti J. Kaasinen, Valto J. Makitalo, Lasse J. Valli | 1995-08-22 |
| 5431373 | Method and apparatus for increasing the efficiency of a waste heat boiler | Kari Rajainmaki, Veli Salmi, Heikki Teperi, Pekka Tuokkola | 1995-07-11 |
| 5370369 | Multipurpose burner designed for adjusting the supply of a reaction gas to be fed into a smelting furnace | Valto J. Makitalo | 1994-12-06 |
| 5358222 | Apparatus for oxidizing pulverous fuel with two gases having different oxygen contents | Pentti J. Kaasinen, Valto J. Makitalo, Lasse J. Valli | 1994-10-25 |
| 5248485 | Method for mixing liquid, solids and gas and for simultaneously separating gas or gas and solids from the liquid | Valto J. Makitalo, Stig-Erik Hultholm, Bror Nyman | 1993-09-28 |
| 5244097 | Apparatus for feeding air into a flotation cell | Matti O. Leiponen, Valto J. Makitalo | 1993-09-14 |
| 5240327 | Method for creating double loop flow | Bror Nyman, Seppo S. Jounela, Valto J. Makitalo | 1993-08-31 |
| 5219467 | Method for concentrating ore slurries by means of intensive agitation conditioning and simultaneous flotation, and an apparatus for the same | Bror Nyman, Seppo S. Jounela, Valto J. Makitalo | 1993-06-15 |
| 5188808 | Method for mixing liquid, solids and gas and for simultaneously separating gas or gas and solids from the liquid | Valto J. Makitalo, Stig-Erik Hultholm, Bror Nyman | 1993-02-23 |
| 5185081 | Method and apparatus for mixing and separating two liquid phases while preventing aeration and emulsions using a mixer-settler | Bror Nyman, Stig-Erik Hultholm, Valto J. Makitalo | 1993-02-09 |
| 5182087 | Method for mixing two liquids or liquid and solid material together, and for simultaneously separating another liquid or solid from the liquid | Valto J. Makitalo, Stig-Erik Hultholm, Bror Nyman | 1993-01-26 |
| 5181955 | Method and apparatus for heating and smelting pulverous solids and for volatilizing the volatile ingredients thereof in a suspension smelting furnace | Jussi A. Asteljoki, Jukka Laulumaa | 1993-01-26 |
| 5178653 | Multigas scrubber | Valto J. Makitalo, Bror Nyman | 1993-01-12 |
| 5143600 | Apparatus for feeding air into a flotation cell | Matti O. Leiponen, Valto J. Makitalo | 1992-09-01 |
| 5078505 | Apparatus for creating a double loop flow | Bror Nyman, Seppo S. Jounel, Valto J. Makitalo | 1992-01-07 |
| 4995051 | Smelting furnace and method for feeding material to be processed therein | Nils H. Hakulin, Risto M. Heikkila, Matti E. Honkaniemi, Helge Krogerus | 1991-02-19 |
| 4786187 | Method for dispersing two phases in extraction and apparatus for realizing the method | Bror Nyman, Stig-Erik Hultholm, Valto J. Makitalo | 1988-11-22 |
| 4747694 | Method for dispersing two phases in a solvent extraction process and a pump mixer for realizing the method | Bror Nyman, Stig-Erik Hultholm, Valto J. Makitalo | 1988-05-31 |
| 4721571 | Method for dispersing two phases and for setting the dispersed phases | Bror Nyman, Stig-Erik Hultholm, Raimo Leimala, Valto J. Makitalo | 1988-01-26 |
| 4708640 | Apparatus for batch preparation and feeding into the smelting process | Matti E. Honkaniemi, Lauri A. Mustikka, Martti Jankkila, Pentti O. Hokkanen, Risto M. Heikkila | 1987-11-24 |
| 4705474 | Method and apparatus for batch preparation and feeding into the smelting process | Matti E. Honkaniemi, Lauri A. Mustikka, Martti Jankkila, Pentti O. Hokkanen, Risto M. Heikkila | 1987-11-10 |
| 4648973 | Way to oxidize sludge with high solid matter content | Stig-Erik Hultholm, Valto J. Makitalo, Bror Nyman | 1987-03-10 |
| 4628391 | Method for dispersing two phases in liquid-liquid extraction | Bror Nyman, Stig-Erik Hultholm, Valto J. Makitalo | 1986-12-09 |