Rock River Arms, Inc. is a prominent manufacturer based in Colona, Illinois, specializing in firearm technology. The company is known for its innovative designs and high-quality production of firearms, including components such as muzzle brakes, gas piston systems, and various firearm accessories. Rock River Arms focuses on enhancing user experience and performance through advanced engineering in areas like magazine release levers, handguards, and trigger guards. Their commitment to precision and reliability positions them as a key player in the firearms industry.

Profile summary synthesized from public USPTO records and patent filings.

Company Badge

USPTO Data Jan 1 1976 - Oct 13 2026

56 Patents

#1 in Colona, IL

#356 in Illinois

#6,358 in US

#12,754 in the World

Colona, IL, United States of America

Rock River Arms, Inc.

Forward Citations = 703

7 inventors:

Lester C Larson, Jr (53 out of 53 patents)

Mark Larson (29 out of 29 patents)

Joe Brown (3 out of 3 patents)

4. James Finn (3 out of 3 patents)

5. Matt White (2 out of 2 patents)

IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: Rock River Arms, Inc.. Retrieved from https://idiyas.com/company/rock-river-arms

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]

1 patent (EPO):

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]