Inventor · disambiguated record

George C. Duncan

Also filed as: DUNCAN GEORGE C

2 granted patents·14 citations·filing 2004–2005

58Inventor score

Technology areasE21B

Files withWEATHERFORD LAMB2

Top patents by PatentIndex Score

2 records

0152US7543651B2Non-elastomer cement through tubing retrievable safety valveWEATHERFORD LAMB·Filed 2005·Granted Jun 9, 2009·4 cites·16 claims
0246US7314091B2Cement-through, tubing retrievable safety valveWEATHERFORD LAMB·Filed 2004·Granted Jan 1, 2008·10 cites·31 claims

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