Inventor · disambiguated record
John Pettit
Also filed as: PETTIT JOHN · PETTIT JOHN R
5 granted patents·147 citations·filing 1982–1989
83Inventor score
Technology areasE21B
Top patents by PatentIndex Score
5 records- 0178US4674576ACasing hanger running toolVETCO GRAY INC·Filed 1985·Granted Jun 23, 1987·64 cites·26 claims
- 0257US4634152ACasing hanger running toolVETCO OFFSHORE IND INC·Filed 1985·Granted Jan 6, 1987·29 cites·17 claims
- 0357US4521040ACombined metal and elastomer sealVETCO OFFSHORT INC·Filed 1982·Granted Jun 4, 1985·27 cites·13 claims
- 0443US4900067ARetrievable packoff with an embedded flexible, metallic bandVETCO GRAY INC·Filed 1989·Granted Feb 13, 1990·15 cites·6 claims
- 0537US4611663ACasing hanger and running apparatusVETCO OFFSHORE IND INC·Filed 1985·Granted Sep 16, 1986·12 cites·27 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →