Inventor · disambiguated record
Andrew Murdock
Also filed as: MURDOCK ANDREW · MURDOCK ANDREW D · MURDOCK ANDREW DAVID
23 granted patents·1 pending application·1,222 citations·filing 1994–2019
97Inventor score
Files withCAMCO DRILLING GROUP LTD7CAMCO INT UK LTD6ULTERRA DRILLING TECH LP6CAMCO DRILLING GROUP LTD OF HY1CAMCO INT1
Top patents by PatentIndex Score
24 records- 0198US5732783AIn or relating to rotary drill bitsCAMCO DRILLING GROUP LTD·Filed 1996·Granted Mar 31, 1998·145 cites·6 claims
- 0295US5531281ARotary drilling toolsCAMCO DRILLING GROUP LTD·Filed 1994·Granted Jul 2, 1996·203 cites·2 claims
- 0394US9556683B2Earth boring tool with improved arrangement of cutter side rakesULTERRA DRILLING TECH LP·Filed 2013·Granted Jan 31, 2017·21 cites·44 claims
- 0494US6142250ARotary drill bit having moveable formation-engaging membersCAMCO INT UK LTD·Filed 1998·Granted Nov 7, 2000·207 cites·36 claims
- 0587US5651421ARotary drill bitsCAMCO DRILLING GROUP LTD·Filed 1995·Granted Jul 29, 1997·125 cites·22 claims
- 0684US7308955B2Stabilizer arrangementREEDHYCALOG UK LTD·Filed 2006·Granted Dec 18, 2007·26 cites·16 claims
- 0782US5649604ARotary drill bitsCAMCO DRILLING GROUP LTD·Filed 1995·Granted Jul 22, 1997·95 cites·23 claims
- 0881US10563463B2Earth boring tool with improved arrangements of cutter side rakesULTERRA DRILLING TECH LP·Filed 2016·Granted Feb 18, 2020·3 cites·15 claims
- 0981US5944128AMatrix hard facing by lost wax processCAMCO INT UK LTD·Filed 1998·Granted Aug 31, 1999·28 cites·3 claims
- 1080US10570665B2Drill bitULTERRA DRILLING TECH LP·Filed 2015·Granted Feb 25, 2020·4 cites·28 claims
- 1180US5829539ARotary drill bit with hardfaced fluid passages and method of manufacturingCAMCO DRILLING GROUP LTD·Filed 1997·Granted Nov 3, 1998·95 cites·8 claims
- 1274US6098726ATorque transmitting device for rotary drill bitsCAMCO INT UK LTD·Filed 1998·Granted Aug 8, 2000·68 cites·18 claims
- 1368US10711528B2Diamond cutting elements for drill bits seeded with HCP crystalline materialULTERRA DRILLING TECH LP·Filed 2019·Granted Jul 14, 2020·0 cites·17 claims
- 1466US10160099B2Selectively leached, polycrystalline structures for cutting elements of drill bitsULTERRA DRILLING TECH LP·Filed 2013·Granted Dec 25, 2018·1 cites·26 claims
- 1565US10180032B2Diamond cutting elements for drill bits seeded with HCP crystalline materialULTERRA DRILLING TECH LP·Filed 2013·Granted Jan 15, 2019·2 cites·39 claims
- 1660US6089336ARotary drill bitsCAMCO INT UK LTD·Filed 1997·Granted Jul 18, 2000·47 cites·51 claims
- 1756US5697461ARotary drill bit having a non-rotating gauge sectionCAMCO DRILLING GROUP LTD OF HY·Filed 1995·Granted Dec 16, 1997·37 cites·10 claims
- 1855US6484822B2Cutting structure for earth boring drill bitsCAMCO INTERNAT U K LTD·Filed 2001·Granted Nov 26, 2002·20 cites·16 claims
- 1953US5417296ARotary drill bitsCAMCO DRILLING GROUP LTD·Filed 1994·Granted May 23, 1995·26 cites·4 claims
- 2051US6151960AMethod of determining characteristics of a rotary drag-type drill bitCAMCO INT UK LTD·Filed 1998·Granted Nov 28, 2000·26 cites·26 claims
- 2151US5671818ARotary drill bitsCAMCO DRILLING GROUP LTD·Filed 1995·Granted Sep 30, 1997·25 cites·15 claims
- 2238US5819860ARotary drill bitsCAMCO INT·Filed 1997·Granted Oct 13, 1998·11 cites·52 claims
- 2330US2001020551A1Rotary drag-type drill bits and methods of designing such bitsFiled 2001·Application pending·0 cites
- 2429US6164390AMethod of determining characteristics of a rotary drag-type drill bitCAMCO INT UK LTD·Filed 1999·Granted Dec 26, 2000·7 cites·8 claims
Join the waitlist — get patent alerts
Get an alert when Andrew Murdock files or is granted a new patent.
We store only your email — no account needed. See our privacy policy.
Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →