LJ

Lester C. Larson, Jr.

RA Rock River Arms: 52 patents #1 of 7Top 15%
📍 Colona, IL: #1 of 33 inventorsTop 4%
🗺 Illinois: #747 of 84,256 inventorsTop 1%
Overall (All Time): #50,348 of 4,157,543Top 2%
52
Patents All Time

Issued Patents All Time

Showing 1–25 of 52 patents

Patent #TitleCo-InventorsDate
12345486 Firearm cartridge ejector 2025-07-01
10605556 Firearm Joe Brown, Matt White 2020-03-31
10048029 Firearm having gas piston system 2018-08-14
9989326 Firearm with magazine release lever Mark Larson 2018-06-05
9869522 Firearm Joe Brown, Matt White 2018-01-16
9835411 Integrated rail and sight system for firearm Kim McCubbin, Tom McCubbin 2017-12-05
D787621 Muzzle brake 2017-05-23
D783762 Muzzle brake 2017-04-11
9593897 Firearm with magazine release lever Mark Larson 2017-03-14
D773594 Muzzle brake 2016-12-06
D773595 Muzzle brake 2016-12-06
9400147 Firearm having gas piston system 2016-07-26
D760338 Firearm 2016-06-28
9372043 Firearm with magazine release lever Mark Larson 2016-06-21
9347721 Magazine for firearm 2016-05-24
9341426 Muzzle brake for firearm 2016-05-17
9341438 Handguard for firearm 2016-05-17
D747429 Muzzle brake 2016-01-12
D746937 Muzzle brake 2016-01-05
9207034 Muzzle brake for firearm 2015-12-08
9194638 Firearm with magazine release lever Mark Larson 2015-11-24
D740909 Firearm 2015-10-13
D740387 Firearm 2015-10-06
D733828 Muzzle brake 2015-07-07
9016188 Firearm having gas piston system Mark Larson 2015-04-28