Inventor · disambiguated record
Jerry Cerkovnik
Also filed as: CERKOVNIK JERRY
5 granted patents·299 citations·filing 1983–2007
85Inventor score
Technology areasE21B
Top patents by PatentIndex Score
5 records- 0185US5873422AAnti-whirl drill bitBAKER HUGHES INC·Filed 1994·Granted Feb 23, 1999·86 cites·5 claims
- 0282US4515227ANozzle placement in a diamond rotating bit including a pilot bitCHRISTENSEN INC·Filed 1983·Granted May 7, 1985·63 cites·6 claims
- 0381US5979576AAnti-whirl drill bitBAKER HUGHES INC·Filed 1998·Granted Nov 9, 1999·82 cites·28 claims
- 0477US5025873ASelf-renewing multi-element cutting structure for rotary drag bitBAKER HUGHES INC·Filed 1989·Granted Jun 25, 1991·55 cites·28 claims
- 0567US8122954B2Downhole depth computation methods and related systemESTES ROBERT·Filed 2007·Granted Feb 28, 2012·13 cites·22 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →