DA

David Ashcraft

BH Baker Hughes Holdings: 2 patents #1,327 of 3,522Top 40%
📍 Katy, TX: #845 of 2,042 inventorsTop 45%
🗺 Texas: #52,441 of 125,132 inventorsTop 45%
Overall (All Time): #2,134,835 of 4,157,543Top 55%
2
Patents All Time

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
7530407 Rotary coring device and method for acquiring a sidewall core from an earth formation Borislav J. Tchakarov, Bahadur Sagoo, Quan V. Phan 2009-05-12
7373994 Self cleaning coring bit Borislav J. Tchakarov, Roderick A. Larson 2008-05-20