Inventor · disambiguated record

David Schwertner

Also filed as: SCHWERTNER DAVID · SCHWERTNER DAVID W

6 granted patents·1 pending application·168 citations·filing 1995–2009

85Inventor score

Technology areasC09K

Files withBAKER HUGHES INC6

Top patents by PatentIndex Score

7 records

0190US7271131B2Fluid loss control and sealing agent for drilling depleted sand formationsBAKER HUGHES INC·Filed 2003·Granted Sep 18, 2007·61 cites·12 claims
0281US5605879AOlefin isomers as lubricants, rate of penetration enhancers, and spotting fluid additives for water-based drilling fluidsBAKER HUGHES INC·Filed 1995·Granted Feb 25, 1997·46 cites·26 claims
0380US5851958AOlefins and lubricants, rate of penetration enhancers, and spotting fluid additives for water-based drilling fluidsFiled 1997·Granted Dec 22, 1998·45 cites·30 claims
0467US7393813B2Water-based drilling fluids using latex additivesBAKER HUGHES INC·Filed 2003·Granted Jul 1, 2008·8 cites·20 claims
0561US7087555B2Drilling fluids comprising sized graphite particlesBAKER HUGHES INC·Filed 2004·Granted Aug 8, 2006·8 cites·20 claims
0648US7977281B2Methods for minimizing the amount of graphite particles used during drilling operationsBAKER HUGHES INC·Filed 2009·Granted Jul 12, 2011·0 cites·12 claims
0739US2006122070A1Drilling fluid systems comprising sized graphite particlesBAKER HUGHES INC·Filed 2005·Application pending·0 cites

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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →