Douglas Caraway

HS Halliburton Energy Services: 6 patents #1,023 of 4,711Top 25%

CI Camco International: 5 patents #14 of 166Top 9%

CL Camco International (Uk) Limited: 5 patents #9 of 34Top 30%

CH Camco Drilling Group Limited Of Hycalog: 2 patents #4 of 15Top 30%

AA Aker Solutions As: 2 patents #9 of 98Top 10%

CL Camco Drilling Group Limited: 2 patents #9 of 27Top 35%

RL Reedhycalog Uk Limited: 1 patents #4 of 11Top 40%

EC Earth Tool Company: 1 patents #11 of 15Top 75%

ND National Oilwell Dht: 1 patents #44 of 91Top 50%

NV National Oilwell Varco: 1 patents #240 of 551Top 45%

📍 Conroe, TX: #30 of 788 inventorsTop 4%

🗺 Texas: #4,546 of 125,132 inventorsTop 4%

Overall (All Time): #143,933 of 4,157,543Top 4%

Patents All Time

Issued Patents All Time

Showing 26–27 of 27 patents

Patent #	Title	Co-Inventors	Date
5732783	In or relating to rotary drill bits	David Truax, Stephen M. Evans, Andrew Murdock	1998-03-31
5699868	Rotary drill bits having nozzles to enhance recirculation	Graham Watson, T. Alex Newton	1997-12-23