% Expired Patents = 28.6

Trademarks = 1

Forward Citations = 63

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8 inventors (with patents filed for the assignee):

Kai Lehtonen (1 out of 9 patents)

Tero Raikio (1 out of 2 patents)

Daniel Paro (1 out of 9 patents)

4. Carl-Erik Rösgren (1 out of 1 patent)

5. Jari Renkonen (1 out of 1 patent)

6. Jerzy Chomiak (1 out of 2 patents)

7. Ted Bergman (1 out of 1 patent)

8. Arto Järvi (1 out of 1 patent)

7 patents: Sort by Forward Citations

1. 6973908 - Apparatus and method of lubricating of piston engine (2005-12-13),

2. 6953052 - Fuel system shut-off valve (2005-10-11),

3. 6912978 - Air feeding arrangement for piston engine (2005-07-05),

4. 6910469 - Inlet air arrangement for piston engine (2005-06-28),

5. 6883325 - Method of utilizing waste heat in turbocharger unit of an internal combustion engine and internal combustion engine arrangement (2005-04-26),

6. 6626237 - Heat recovery apparatus and method of minimizing fouling in a heat recovery apparatus (2003-09-30),

7. 6622486 - Arrangement for and method of feeding air in a piston engine (2003-09-23),

Company Overview

Wartsila Technology Oy Ab is a global leader in advanced technologies and complete lifecycle solutions for the marine and energy markets. With a strong focus on sustainability and innovation, Wartsila provides cutting-edge solutions for a sustainable future. The company's offerings include ship design, propulsion systems, energy storage solutions, and digital systems for optimizing performance and efficiency.

Profile summary synthesized from public USPTO records and patent filings.

Company Badge

USPTO Data Jan 1 1976 - Oct 13 2026

7 Patents

#112 in Helsinki

#403 in Finland

Helsinki, Finland

Wartsila Technology Oy Ab

Forward Citations = 63

8 inventors:

Kai Lehtonen (1 out of 9 patents)

Tero Raikio (1 out of 2 patents)

Daniel Paro (1 out of 9 patents)

4. Carl-Erik Rösgren (1 out of 1 patent)

5. Jari Renkonen (1 out of 1 patent)

IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: Wartsila Technology Oy Ab. Retrieved from https://idiyas.com/company/wartsila-technology-oy-ab

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]