Inventor · disambiguated record
John E. Langdon
Also filed as: LANGDON JOHN E
5 granted patents·110 citations·filing 1981–2012
80Inventor score
Top patents by PatentIndex Score
5 records- 0194US7712528B2Process for dispersing nanocatalysts into petroleum-bearing formationsWORLD ENERGY SYSTEMS INC·Filed 2008·Granted May 11, 2010·64 cites·89 claims
- 0286US7770646B2System, method and apparatus for hydrogen-oxygen burner in downhole steam generatorWORLD ENERGY SYSTEMS INC·Filed 2007·Granted Aug 10, 2010·38 cites·50 claims
- 0369US8336623B2Process for dispersing nanocatalysts into petroleum-bearing formationsLANGDON JOHN E·Filed 2010·Granted Dec 25, 2012·4 cites·70 claims
- 0449US8584752B2Process for dispersing nanocatalysts into petroleum-bearing formationsWORLD ENERGY SYSTEMS INC·Filed 2012·Granted Nov 19, 2013·0 cites·22 claims
- 0531US4431379AValve piston for constant displacement pumpCASE CO J I·Filed 1981·Granted Feb 14, 1984·4 cites·1 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →