DG

Darin Grassmann

OL Oil States Energy Services, L.L.C.: 1 patents #5 of 7Top 75%
📍 Piedmont, OK: #1 of 2 inventorsTop 50%
🗺 Oklahoma: #264 of 935 inventorsTop 30%
Overall (2022): #484,045 of 548,613Top 90%
1
Patents 2022

Issued Patents 2022

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
11214455 Extendable spool Bob McGuire, Danny Lee Artherholt, Mickey Claxton, Blake Mullins 2022-01-04