Inventor · disambiguated record
John Lofton
Also filed as: LOFTON JOHN
2 granted patents·34 citations·filing 2003–2010
62Inventor score
Technology areasE21B
Files withCHEVRON USA INC2
Top patents by PatentIndex Score
2 records- 0181US8353351B2System and method for regulating pressure within a well annulusCHEVRON USA INC·Filed 2010·Granted Jan 15, 2013·10 cites·20 claims
- 0259US6938707B2Method and system for minimizing circulating fluid return losses during drilling of a well boreCHEVRON USA INC·Filed 2003·Granted Sep 6, 2005·24 cites·20 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →