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Outokumpu Engineering Contractors Oy

USPTO Granted Patents = 12

Forward Citations = 70

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24 inventors (with patents filed for the assignee):

Launo L Lilja (5 out of 62 patents)

Valto J Makitalo (5 out of 34 patents)

Risto Saarinen (3 out of 22 patents)

4. Pekka Hanniala (3 out of 4 patents)

5. Bror G Nyman (2 out of 53 patents)

6. Pentti J Kaasinen (2 out of 2 patents)

7. Lasse J Valli (2 out of 2 patents)

8. Erkki Krogerus (2 out of 2 patents)

9. Ilkka Veikko Kojo (2 out of 13 patents)

10. Stig-Erik Hultholm (1 out of 37 patents)

11. Timo Saarenpaa (1 out of 3 patents)

12. Rolf E Malmstrom (1 out of 10 patents)

13. Markus K Ranki (1 out of 1 patent)

14. Iikka Kojo (1 out of 1 patent)

15. Stig-Erik Hulthom (1 out of 1 patent)

12 patents: Sort by Forward Citations

1. 5772955 - Apparatus for suspension smelting (1998-06-30),

2. 5674310 - Method and apparatus for feeding reaction gas and solids (1997-10-07),

3. 5662871 - Method for extracting metals from large solution flows and apparatus for (1997-09-02),

4. 5628817 - Method for leaching nickel-copper matte employing substantially neutral (1997-05-13),

5. 5574956 - Method and apparatus for treatment sulphidic concentrates (1996-11-12),

6. 5565016 - Method for suspension smelting (1996-10-15),

7. 5549854 - Method and apparatus for forming controlled vortexes and for (1996-08-27),

8. 5505434 - Method and apparatus for improving heat and dust recovery in a waste (1996-04-09),

9. 5492554 - Method for producing high-grade nickel matte from at least partly (1996-02-20),

10. 5443620 - Method for oxidizing pulverous fuel with two gases having different (1995-08-22),

11. 5362032 - Apparatus for feeding gases into a smelting furnace (1994-11-08),

12. 5358222 - Apparatus for oxidizing pulverous fuel with two gases having different (1994-10-25),

Outokumpu Engineering Contractors Oy is a leading engineering and project management company, specializing in the design, construction, and maintenance of industrial facilities. With a strong focus on quality, safety, and sustainability, we deliver innovative solutions that exceed customer expectations.

This text is generated by artificial intelligence and may not be accurate.

Company Badge

USPTO Data Jan 1 1976 - Dec 9 2025

12 Patents

#61 in Espoo

#250 in Finland

#46,665 in the World

Outokumpu Engineering Contractors Oy

Forward Citations = 70

24 inventors:

Launo L Lilja (5 out of 62 patents)

Valto J Makitalo (5 out of 34 patents)

Risto Saarinen (3 out of 22 patents)

4. Pekka Hanniala (3 out of 4 patents)

5. Bror G Nyman (2 out of 53 patents)

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