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Helsinki, Finland

Outokumpu Oy

USPTO Granted Patents = 216

CIPO Patents = 1

Trademarks = 5

Forward Citations = 1,832

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267 inventors (with patents filed for the assignee):

Launo L Lilja (28 out of 62 patents)

Valto J Makitalo (24 out of 34 patents)

Bror G Nyman (19 out of 53 patents)

4. Frans H Tuovinen (15 out of 16 patents)

5. Stig-Erik Hultholm (14 out of 37 patents)

6. Jussi K Rastas (12 out of 12 patents)

7. Matti E Honkaniemi (12 out of 13 patents)

8. Simo A Makipirtti (11 out of 11 patents)

9. Seppo O Heimala (10 out of 10 patents)

10. Heikki J Sipila (8 out of 15 patents)

11. Sigmund P Fugleberg (8 out of 19 patents)

12. Risto M Heikkila (7 out of 7 patents)

13. Timo T Talonen (6 out of 6 patents)

14. Matti O Leiponen (6 out of 9 patents)

15. Helge J Krogerus (6 out of 11 patents)

Core Competencies:

Brazing Filler Metals

Flotation Cells

Metal Powder Production

Copper Alloys

Hydrometallurgy

Waste Treatment

Electrochemical Analysis

Heat Exchangers

Separation Processes

Metal Detection

Slag Utilization

Superconductors

216 patents: Sort by Forward Citations

1. 5378294 - Copper alloys to be used as brazing filler metals (1995-01-03),

2. 5345473 - Apparatus for providing two-way communication in underground facilities (1994-09-06),

3. 5248485 - Method for mixing liquid, solids and gas and for simultaneously (1993-09-28),

4. 5244097 - Apparatus for feeding air into a flotation cell (1993-09-14),

5. 5240327 - Method for creating double loop flow (1993-08-31),

6. 5212994 - Measuring cell (1993-05-25),

7. 5211765 - Method for improving the springback qualities of superconductors (1993-05-18),

8. 5188808 - Method for mixing liquid, solids and gas and for simultaneously (1993-02-23),

9. 5185081 - Method and apparatus for mixing and separating two liquid phases while (1993-02-09),

10. 5182087 - Method for mixing two liquids or liquid and solid material together, and (1993-01-26),

11. 5178842 - Method for precipitating and separating metals (1993-01-12),

12. 5178827 - Copper alloys to be used as brazing filler metals (1993-01-12),

13. 5176810 - Method for producing metal powders (1993-01-05),

14. 5151006 - Automatic charging member (1992-09-29),

15. 5143600 - Apparatus for feeding air into a flotation cell (1992-09-01),

Company Overview

Outokumpu Oy, headquartered in Helsinki, Finland, specializes in the development and production of copper alloys and related technologies. The company is recognized for its expertise in brazing filler metals, flotation cells, and metal powder production. Outokumpu is also engaged in advanced research in hydrometallurgy, waste treatment, and electrochemical analysis, contributing to sustainable practices in metal processing. Its innovations extend to heat exchangers, positioning the company as a leader in the copper alloys sector.

Profile summary synthesized from public USPTO records and patent filings.

Company Badge

USPTO Data Jan 1 1976 - Oct 6 2026

216 Patents

#8 in Helsinki

#22 in Finland

#3,961 in the World

Helsinki, Finland

Outokumpu Oy

Forward Citations = 1,832

267 inventors:

Launo L Lilja (28 out of 62 patents)

Valto J Makitalo (24 out of 34 patents)

Bror G Nyman (19 out of 53 patents)

4. Frans H Tuovinen (15 out of 16 patents)

5. Stig-Erik Hultholm (14 out of 37 patents)

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