Inventor · disambiguated record
Stephen M. Evans
Also filed as: EVANS STEPHEN M · EVANS STEPHEN MARTIN
11 granted patents·1 pending application·738 citations·filing 1978–2001
94Inventor score
Top patents by PatentIndex Score
12 records- 0198US5732783AIn or relating to rotary drill bitsCAMCO DRILLING GROUP LTD·Filed 1996·Granted Mar 31, 1998·145 cites·6 claims
- 0295US6348110B1Methods of manufacturing rotary drill bitsCAMCO INT UK LTD·Filed 2000·Granted Feb 19, 2002·77 cites·12 claims
- 0394US6234261B1Method 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
- 0493US6454028B1Wear resistant drill bitCAMCO INTERNAT U K LTD·Filed 2001·Granted Sep 24, 2002·83 cites·18 claims
- 0591US6148936AMethods of manufacturing rotary drill bitsCAMCO INT UK LTD·Filed 1999·Granted Nov 21, 2000·108 cites·25 claims
- 0681US5944128AMatrix hard facing by lost wax processCAMCO INT UK LTD·Filed 1998·Granted Aug 31, 1999·28 cites·3 claims
- 0775US6575350B2Method of applying a wear-resistant layer to a surface of a downhole componentFiled 2001·Granted Jun 10, 2003·42 cites·17 claims
- 0861US5425288AManufacture of rotary drill bitsCAMCO DRILLING GROUP LTD·Filed 1994·Granted Jun 20, 1995·35 cites·9 claims
- 0949US6116360AMethods of manufacturing rotary drill bitsCAMCO INT UK LTD·Filed 1998·Granted Sep 12, 2000·21 cites·6 claims
- 1047US4191606AMethod for securing composition board panels togetherEVANS STEPHEN M·Filed 1978·Granted Mar 4, 1980·10 cites·3 claims
- 1135US5910766AVehicular accident locator and identification systemFiled 1997·Granted Jun 8, 1999·15 cites·3 claims
- 1232US2001017224A1Method of applying a wear-resistant layer to a surface of a downhole componentFiled 2001·Application pending·0 cites
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