Inventor · disambiguated record
Donald R. Downing
Also filed as: DOWNING DONALD R · DOWNING DONALD RANDALL
4 granted patents·26 citations·filing 1991–2018
72Inventor score
Files withD & L VALVE INC1DOWNING DONALD RANDALL1DOWNING INNOVATIONS LLC1INNOVATIVE OILFIELD CONSULTANTS LTD1
Top patents by PatentIndex Score
4 records- 0179US10174752B2Anti-gas lock valve for a reciprocating downhole pumpINNOVATIVE OILFIELD CONSULTANTS LTD·Filed 2014·Granted Jan 8, 2019·9 cites·10 claims
- 0271US10934828B2Gas and sand separatorDOWNING DONALD RANDALL·Filed 2018·Granted Mar 2, 2021·2 cites·13 claims
- 0368US10316838B2Method and apparatus for preventing gas lock/gas interference in a reciprocating downhole pumpDOWNING INNOVATIONS LLC·Filed 2016·Granted Jun 11, 2019·2 cites·19 claims
- 0439US5139398ANeutralizer valve for a downhole pumpD & L VALVE INC·Filed 1991·Granted Aug 18, 1992·13 cites·6 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →