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For the Inventor, By the Inventor

South Bend, IN, United States of America

Apci, LLC


USPTO Granted Patents = 16

% Expired Patents = 12.5


Forward Citations = 48

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2 inventors (with patents filed for the assignee):

goldMedal Stephen A Johnson (16 out of 26 patents)

silverMedal Thaddeus W Gorski (6 out of 6 patents)


16 patents:

1. 11565342 - Linear friction welder system and method of operating (2023-01-31),
2. 11318556 - Method of operating a linear friction welding system with phase change assembly (2022-05-03),
3. 11203082 - Cam assembly in a linear friction welder system (2021-12-21),
4. 10850347 - Linear friction welding system with pre-heating (2020-12-01),
5. 10737353 - Torque controlled linear friction welder system (2020-08-11),
6. 10569355 - Method of operating a linear friction welding system with phase change assembly (2020-02-25),
7. 10099313 - Linear friction welding system with phase change assembly (2018-10-16),
8. 9943928 - Method of operating an apparatus for linear friction welding (2018-04-17),
9. 9745855 - Linear friction welding apparatus and method (2017-08-29),
10. 9649719 - Method of operating an apparatus for linear friction welding (2017-05-16),
11. 9278479 - Apparatus for linear friction welding (2016-03-08),
12. 9233501 - Apparatus for linear friction welding (2016-01-12),
13. 8967216 - Linear friction welder with helical groove (2015-03-03),
14. 8376210 - Linear friction welder system and method (2013-02-19),
15. 8181841 - Linear friction welder with rocker arms (2012-05-22),
Company Overview
Apci, LLC is a technology-focused company based in South Bend, Indiana, specializing in advanced engineering solutions and product development. The organization is dedicated to creating innovative systems and components across various sectors, including automotive and industrial applications. With a strong emphasis on research and development, Apci leverages cutting-edge technologies to enhance performance and efficiency in its offerings, positioning itself as a key player in the evolving landscape of engineering and manufacturing.
Profile summary synthesized from public USPTO records and patent filings.

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USPTO Data Jan 1 1976 - Oct 20 2026

Apci, LLC USPTO Patent Assignee Logo
16 Patents

#6 in South Bend, IN

#292 in Indiana

#19,935 in US

#37,868 in the World

South Bend, IN (US)
South Bend, IN, United States of America

Apci, LLC

Forward Citations = 48

2 inventors:

goldMedal Stephen A Johnson (16 out of 26 patents)

silverMedal Thaddeus W Gorski (6 out of 6 patents)

IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: Apci, LLC. Retrieved from https://idiyas.com/company/apci

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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