MM

Max A. Metcalf

TW The Charles Machine Works: 2 patents #4 of 34Top 15%
📍 Stillwater, OK: #3 of 56 inventorsTop 6%
🗺 Oklahoma: #116 of 1,012 inventorsTop 15%
Overall (2019): #143,069 of 560,194Top 30%
2
Patents 2019

Issued Patents 2019

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
10407991 Drill string rotation brake Philip J. Wosmek, Harry Bendure, Rick E. Barrett 2019-09-10
10358880 Pipe storage box Rick G. Porter 2019-07-23