Assignee
CAMCO INT UK LTD
US·42 granted patents·4,559 citations·filing 1997–2001
Top patents by PatentIndex Score
42 records- 0199US6592985B2Polycrystalline diamond partially depleted of catalyzing materialCAMCO INT UK LTD·Filed 2001·Granted Jul 15, 2003·299 cites·17 claims
- 0299US6562462B2High volume density polycrystalline diamond with working surfaces depleted of catalyzing materialCAMCO INT UK LTD·Filed 2001·Granted May 13, 2003·309 cites·25 claims
- 0399US6544308B2High volume density polycrystalline diamond with working surfaces depleted of catalyzing materialCAMCO INT UK LTD·Filed 2001·Granted Apr 8, 2003·408 cites·7 claims
- 0498US6248447B1Cutting elements and methods of manufacture thereofCAMCO INT UK LTD·Filed 1999·Granted Jun 19, 2001·216 cites·19 claims
- 0597US6435058B1Rotary drill bit design methodCAMCO INT UK LTD·Filed 2001·Granted Aug 20, 2002·181 cites·11 claims
- 0697US6410085B1Method of machining of polycrystalline diamondCAMCO INT UK LTD·Filed 2001·Granted Jun 25, 2002·158 cites·9 claims
- 0796US6517902B2Methods of treating preform elementsCAMCO INT UK LTD·Filed 2001·Granted Feb 11, 2003·180 cites·10 claims
- 0896US6089332ASteerable rotary drilling systemsCAMCO INT UK LTD·Filed 1998·Granted Jul 18, 2000·279 cites·16 claims
- 0995US6348110B1Methods of manufacturing rotary drill bitsCAMCO INT UK LTD·Filed 2000·Granted Feb 19, 2002·77 cites·12 claims
- 1094US6234261B1Method of applying a wear-resistant layer to a surface of a downhole componentCAMCO INT UK LTD·Filed 1999·Granted May 22, 2001·174 cites·32 claims
- 1194US6142250ARotary drill bit having moveable formation-engaging membersCAMCO INT UK LTD·Filed 1998·Granted Nov 7, 2000·207 cites·36 claims
- 1294US6056911AMethods of treating preform elements including polycrystalline diamond bonded to a substrateCAMCO INT UK LTD·Filed 1998·Granted May 2, 2000·140 cites·17 claims
- 1394US5992547ARotary drill bitsCAMCO INT UK LTD·Filed 1998·Granted Nov 30, 1999·159 cites·8 claims
- 1491US6148936AMethods of manufacturing rotary drill bitsCAMCO INT UK LTD·Filed 1999·Granted Nov 21, 2000·108 cites·25 claims
- 1591US5971085ADownhole unit for use in boreholes in a subsurface formationCAMCO INT UK LTD·Filed 1997·Granted Oct 26, 1999·193 cites·16 claims
- 1690US6269894B1Cutting elements for rotary drill bitsCAMCO INT UK LTD·Filed 1999·Granted Aug 7, 2001·128 cites·13 claims
- 1789US5967246ARotary drill bitsCAMCO INT UK LTD·Filed 1998·Granted Oct 19, 1999·111 cites·13 claims
- 1888US6484825B2Cutting structure for earth boring drill bitsCAMCO INT UK LTD·Filed 2001·Granted Nov 26, 2002·119 cites·32 claims
- 1985US6123161ARotary drill bitsCAMCO INT UK LTD·Filed 1997·Granted Sep 26, 2000·111 cites·54 claims
- 2083US6092613ARotary drill bitsCAMCO INT UK LTD·Filed 1998·Granted Jul 25, 2000·76 cites·8 claims
- 2182US6009962AImpregnated type rotary drill bitsCAMCO INT UK LTD·Filed 1997·Granted Jan 4, 2000·92 cites·11 claims
- 2281US5944128AMatrix hard facing by lost wax processCAMCO INT UK LTD·Filed 1998·Granted Aug 31, 1999·28 cites·3 claims
- 2380US6427792B1Active gauge cutting structure for earth boring drill bitsCAMCO INT UK LTD·Filed 2000·Granted Aug 6, 2002·78 cites·22 claims
- 2480US5904213ARotary drill bitsCAMCO INT UK LTD·Filed 1997·Granted May 18, 1999·68 cites·16 claims
- 2578US6145607APreform cutting elements for rotary drag-type drill bitsCAMCO INT UK LTD·Filed 1998·Granted Nov 14, 2000·74 cites·27 claims
- 2674US6098726ATorque transmitting device for rotary drill bitsCAMCO INT UK LTD·Filed 1998·Granted Aug 8, 2000·68 cites·18 claims
- 2774US6011232AManufacture of elements faced with superhard materialCAMCO INT UK LTD·Filed 1998·Granted Jan 4, 2000·64 cites·26 claims
- 2873US6439327B1Cutting elements for rotary drill bitsCAMCO INT UK LTD·Filed 2000·Granted Aug 27, 2002·40 cites·23 claims
- 2969US6131678APreform elements and mountings thereforCAMCO INT UK LTD·Filed 1998·Granted Oct 17, 2000·54 cites·11 claims
- 3065US6588714B2Cable protector and supportCAMCO INT UK LTD·Filed 2001·Granted Jul 8, 2003·24 cites·17 claims
- 3164US6227044B1Methods and apparatus for detecting torsional vibration in a bottomhole assemblyCAMCO INT UK LTD·Filed 1999·Granted May 8, 2001·45 cites·12 claims
- 3260US6089336ARotary drill bitsCAMCO INT UK LTD·Filed 1997·Granted Jul 18, 2000·47 cites·51 claims
- 3358US6062325ARotary drill bitsCAMCO INT UK LTD·Filed 1998·Granted May 16, 2000·39 cites·19 claims
- 3455US6077591AElements faced with superhard materialCAMCO INT UK LTD·Filed 1998·Granted Jun 20, 2000·32 cites·17 claims
- 3551US6151960AMethod of determining characteristics of a rotary drag-type drill bitCAMCO INT UK LTD·Filed 1998·Granted Nov 28, 2000·26 cites·26 claims
- 3651US6129161ARotary drill bits with extended bearing surfacesCAMCO INT UK LTD·Filed 1998·Granted Oct 10, 2000·35 cites·27 claims
- 3751US6098729APreform cutting elements for rotary drill bitsCAMCO INT UK LTD·Filed 1998·Granted Aug 8, 2000·26 cites·27 claims
- 3850US6246974B1Method of determining characteristics of a rotary drag-type drill bitCAMCO INT UK LTD·Filed 1998·Granted Jun 12, 2001·33 cites·40 claims
- 3949US6116360AMethods of manufacturing rotary drill bitsCAMCO INT UK LTD·Filed 1998·Granted Sep 12, 2000·21 cites·6 claims
- 4038US6065553ASplit blade rotary drag type drill bitsCAMCO INT UK LTD·Filed 1998·Granted May 23, 2000·16 cites·10 claims
- 4134US6164395ACutting structure for rotary drill bitsCAMCO INT UK LTD·Filed 1998·Granted Dec 26, 2000·9 cites·17 claims
- 4229US6164390AMethod of determining characteristics of a rotary drag-type drill bitCAMCO INT UK LTD·Filed 1999·Granted Dec 26, 2000·7 cites·8 claims
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