CB

Christian K. Barker

EJ E.F. Johnson: 4 patents #15 of 54Top 30%
📍 Roanoke, TX: #30 of 116 inventorsTop 30%
🗺 Texas: #33,546 of 125,132 inventorsTop 30%
Overall (All Time): #1,144,546 of 4,157,543Top 30%
4
Patents All Time

Issued Patents All Time

Showing 1–4 of 4 patents

Patent #TitleCo-InventorsDate
11374546 Automatic volume control for land mobile radio Joshua Alan Johnson, Stephen Joseph Borer, Marshall Pommier Schiring 2022-06-28
10469047 Automatic volume control for land mobile radio Joshua Alan Johnson, Stephen Joseph Borer, Marshall Pommier Schiring 2019-11-05
9923534 Automatic volume control for land mobile radio Joshua Alan Johnson, Stephen Joseph Borer, Marshall Pommier Schiring 2018-03-20
D725085 Dual push-to-talk radio microphone Bruce Wade Ross, Troy Frandsen 2015-03-24