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Helsinki, Finland

Outokumpu Oyj

USPTO Granted Patents = 177

% Expired Patents = 36.7

CIPO Patents = 10

EPO Patents = 52

Trademarks = 9

Forward Citations = 493

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262 inventors (with patents filed for the assignee):

Stefan Lindner (19 out of 34 patents)

Thomas Fröhlich (11 out of 12 patents)

Tom Marttila (9 out of 16 patents)

4. Risto Saarinen (8 out of 22 patents)

5. Launo L Lilja (8 out of 62 patents)

6. James Oliver (7 out of 7 patents)

7. Timo U Niitti (7 out of 9 patents)

8. Jan Y Jonsson (6 out of 10 patents)

9. Thomas Hündgen (5 out of 5 patents)

10. Tuomo Kivistö (5 out of 5 patents)

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

12. Ilkka Veikko Kojo (5 out of 13 patents)

13. Jan-Olof Andersson (4 out of 4 patents)

14. Yoram Leon Shabtay (4 out of 7 patents)

15. Ilpo Koppinen (4 out of 6 patents)

Core Competencies:

Stainless Steel

Austenitic Steel

Duplex Stainless Steel

Resistance Welding

Thermal Systems

Metal Strips

Composite Materials

Electrochemical Process

Metal Strip Control

Cooling Systems

Hot Forming

Welding Techniques

177 patents: Sort by Forward Citations

1. 12391201 - Expanded tube for a motor vehicle crash box and manufacturing method for it (2025-08-19),

2. 12325888 - Method for manufacturing of stainless steel strips (2025-06-10),

3. 12241139 - Method for manufacturing an austenitic steel component and use of the component (2025-03-04),

4. 12181231 - Cooling system (2024-12-31),

5. 12172225 - Resistance spot welding electrode and use of the electrode (2024-12-24),

6. 12115592 - Method for manufacturing a weldable metal-polymer multilayer composite (2024-10-15),

7. 12110571 - Method for partial cold deformation of steel with homogeneous thickness (2024-10-08),

8. 11967727 - Method for manufacturing a crash frame of a battery compartment for battery electric vehicles (2024-04-23),

9. 11932926 - Duplex ferritic austenitic stainless steel composition (2024-03-19),

10. 11870048 - Thermal systems for battery electric vehicles (2024-01-09),

11. 11865598 - Method for manufacturing flexible rolling of metal strips (2024-01-09),

12. 11834726 - Method for producing a stainless steel sheet with modified visual characteristics (2023-12-05),

13. 11788176 - Steel for manufacturing a component by hot forming and use of the component (2023-10-17),

14. 11692253 - Duplex stainless steel (2023-07-04),

15. 11566309 - Duplex ferritic austenitic stainless steel (2023-01-31),

Company Overview

Outokumpu Oyj is a leading global provider of stainless steel solutions, headquartered in Helsinki, Finland. The company specializes in the development and manufacturing of a wide range of stainless steel products, including austenitic and duplex stainless steels, metal strips, and composite materials. Outokumpu is recognized for its expertise in resistance welding and thermal systems, focusing on innovative electrochemical processes to enhance product performance and sustainability in various industrial applications.

Profile summary synthesized from public USPTO records and patent filings.

Company Badge

USPTO Data Jan 1 1976 - Oct 13 2026

177 Patents

#12 in Helsinki

#29 in Finland

#4,705 in the World

Helsinki, Finland

Outokumpu Oyj

Forward Citations = 493

262 inventors:

Stefan Lindner (19 out of 34 patents)

Thomas Fröhlich (11 out of 12 patents)

Tom Marttila (9 out of 16 patents)

4. Risto Saarinen (8 out of 22 patents)

5. Launo L Lilja (8 out of 62 patents)

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

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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