Inventor · disambiguated record

Dave Switzer

Also filed as: SWITZER DAVE

2 granted patents·1 pending application·29 citations·filing 2006–2016

56Inventor score

Technology areasE21B F16L

Files withEVOLUTION ENGINEERING INC1 EXTREME ENGINEERING LTD1 SCHLUMBERGER TECHNOLOGY CORP1

Top patents by PatentIndex Score

3 records

0185US7839719B2Fluid erosion protection washer for rotating shaft in MWD toolSCHLUMBERGER TECHNOLOGY CORP·Filed 2009·Granted Nov 23, 2010·29 cites·11 claims
0237US7532540B2Fluid erosion protection washer for rotating shaft in MWD toolEXTREME ENGINEERING LTD·Filed 2006·Granted May 12, 2009·0 cites·8 claims
0336US2018044999A1Device and method for securing conduit interior wear sleeveEVOLUTION ENGINEERING INC·Filed 2016·Application pending·0 cites

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