SS

Steven H. Shirk

BH Baker Hughes Holdings: 2 patents #1,327 of 3,522Top 40%
📍 Broken Arrow, OK: #224 of 587 inventorsTop 40%
🗺 Oklahoma: #4,502 of 12,736 inventorsTop 40%
Overall (All Time): #2,326,309 of 4,157,543Top 60%
2
Patents All Time

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
4967845 Lock open mechanism for downhole safety valve — 1990-11-06
4960173 Releasable well tool stabilizer Michael L. Cognevich 1990-10-02