DE

Donald Ewing

TS Trc Services: 3 patents #4 of 16Top 25%
Overall (All Time): #1,441,297 of 4,157,543Top 35%
3
Patents All Time

Issued Patents All Time

Patent #TitleCo-InventorsDate
11199053 Sucker rod with adhesive-attached end piece Donald Mike Johnson, Michael Eric Johnson 2021-12-14
11168549 Automated sucker rod spacing device and associated methods Michael Eric Johnson, Donald Mike Johnson, Joe Boyd, Danny Uselton 2021-11-09
10508522 Automatic sucker rod spacing device and methods of using same Michael Eric Johnson, Donald Mike Johnson, Joe Boyd, Danny Uselton 2019-12-17