Inventor · disambiguated record
Richard W. Mcewen
Also filed as: MCEWEN RICHARD · MCEWEN RICHARD W
3 granted patents·201 citations·filing 1994–2000
77Inventor score
Technology areasE21B
Files withCHARLES MACHINE WORKS3
Top patents by PatentIndex Score
3 records- 0191US6543551B1Pipe handling deviceCHARLES MACHINE WORKS·Filed 2000·Granted Apr 8, 2003·118 cites·93 claims
- 0276US6085852APipe handling deviceCHARLES MACHINE WORKS·Filed 1996·Granted Jul 11, 2000·68 cites·245 claims
- 0337US5544712ADrill pipe breakout deviceCHARLES MACHINE WORKS·Filed 1994·Granted Aug 13, 1996·15 cites·5 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →