% Expired Patents = 50.0

Trademarks = 20

Forward Citations = 9

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3 inventors (with patents filed for the assignee):

Mark Eskridge (2 out of 24 patents)

Arthur J Kiehn (2 out of 2 patents)

Hugh A McNeil (1 out of 1 patent)

2 patents: Sort by Forward Citations

1. 6573224 - Two-cycle engine lubricant composition comprising an ester copolymer and a diester (2003-06-03),

2. 5470504 - Siloxane polymer compositions (1995-11-28),

Company Badge

USPTO Data Jan 1 1976 - Oct 6 2026

2 Patents

#673 in Seattle, WA

#2,342 in Washington

#94,782 in US

Seattle, WA, United States of America

Bardahl Manufacturing Corporation

Forward Citations = 9

3 inventors:

Mark Eskridge (2 out of 24 patents)

Arthur J Kiehn (2 out of 2 patents)

Hugh A McNeil (1 out of 1 patent)

IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: Bardahl Manufacturing Corporation. Retrieved from https://idiyas.com/company/bardahl-manufacturing

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]