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For the Inventor, By the Inventor

Espoo, Finland

Outokumpu Technology Oy


USPTO Granted Patents = 16

% Expired Patents = 37.5


Forward Citations = 52

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31 inventors (with patents filed for the assignee):

goldMedal Launo L Lilja (3 out of 62 patents)

silverMedal Ari Rantala (2 out of 8 patents)

bronzeMedal Henri K Virtanen (2 out of 20 patents)

4.  Risto Saarinen (2 out of 22 patents)

5.  Stig-Erik Hultholm (2 out of 37 patents)

6.  Timo U Niitti (2 out of 9 patents)

7.  Lauri Mustikka (2 out of 2 patents)

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

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

10.  Maija-Leena Metsärinta (1 out of 4 patents)

11.  Heikki Oravainen (1 out of 2 patents)

12.  Juhani Lyyra (1 out of 15 patents)

13.  Raimo Kuusisto (1 out of 15 patents)

14.  Pekka Taskinen (1 out of 9 patents)

15.  Juha Järvi (1 out of 2 patents)


16 patents:

1. 7179374 - Device for shear-thinning of solids containing material (2007-02-20),
2. 7122109 - Method for the improvements of current efficiency in electrolysis (2006-10-17),
3. 7118719 - Method for the hydrolytic precipitation of iron (2006-10-10),
4. 7070174 - Mixing apparatus for mixing gas in a closed reactor (2006-07-04),
5. 7044996 - Method for reducing build-up on a roasting furnace grate (2006-05-16),
6. 7002171 - Method for improving the quality of cathodes in electrolysis (2006-02-21),
7. 6991111 - Flotation mechanism and cell (2006-01-31),
8. 6955140 - Method and apparatus for increasing the capacity of a waste heat boiler in a metallurgic smelting furnace (2005-10-18),
9. 6953547 - Method and apparatus for feeding solid material and oxidizing gas into a suspension smelting furnace (2005-10-11),
10. 6945408 - Flotation machine (2005-09-20),
11. 6937167 - Method for joining a jacket element and a core element together (2005-08-30),
12. 6936216 - Melt launder (2005-08-30),
13. 6929677 - Method for leaching copper concentrate (2005-08-16),
14. 6253927 - Roller screen (2001-07-03),
15. 6197249 - Apparatus for conducting gas through material to be sintered (2001-03-06),
Company Overview
Outokumpu Technology Oy, based in Espoo, Finland, specializes in advanced technology solutions for the metals and mining industries. The company focuses on developing innovative processes and equipment that enhance efficiency and sustainability in metal production. With a strong emphasis on research and development, Outokumpu is dedicated to providing cutting-edge technologies that address the evolving needs of its global clientele, ensuring a competitive edge in the dynamic landscape of industrial technology.
Profile summary synthesized from public USPTO records and patent filings.

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USPTO Data Jan 1 1976 - Oct 13 2026

Outokumpu Technology Oy USPTO Patent Assignee Logo
16 Patents

#45 in Espoo

#201 in Finland

#37,831 in the World

Espoo, FI
Espoo, Finland

Outokumpu Technology Oy

Forward Citations = 52

31 inventors:

goldMedal Launo L Lilja (3 out of 62 patents)

silverMedal Ari Rantala (2 out of 8 patents)

bronzeMedal Henri K Virtanen (2 out of 20 patents)

4.  Risto Saarinen (2 out of 22 patents)

5.  Stig-Erik Hultholm (2 out of 37 patents)

IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: Outokumpu Technology Oy. Retrieved from https://idiyas.com/company/outokumpu-technology-oy

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

Data Sources: USPTO Patent Grant XML, Patent Center, EPO & CIPO • Normalized by IDiyas Innovation Graph. Methodology & provenance architecturePlease report any incorrect information to [email protected]
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