Inventor · disambiguated record
Roy D. Estes
Also filed as: ESTES ROY · ESTES ROY D · ESTES ROY DEE
18 granted patents·3 pending applications·860 citations·filing 1984–2018
96Inventor score
Technology areasE21B
Top patents by PatentIndex Score
21 records- 0190US6904984B1Stepped polycrystalline diamond compact insertROCK BIT L P·Filed 2003·Granted Jun 14, 2005·113 cites·5 claims
- 0288US5197555ARock bit with vectored insertsROCK BIT INTERNATIONAL INC·Filed 1991·Granted Mar 30, 1993·118 cites·24 claims
- 0386US6902014B1Roller cone bi-center bitROCK BIT L P·Filed 2002·Granted Jun 7, 2005·81 cites·7 claims
- 0484US5145017AKerf-cutting apparatus for increased drilling ratesEXXON PRODUCTION RESEARCH CO·Filed 1991·Granted Sep 8, 1992·121 cites·14 claims
- 0584US5145016ARock bit with reaming rowsROCK BIT INTERNATIONAL INC·Filed 1991·Granted Sep 8, 1992·91 cites·28 claims
- 0681US6745858B1Adjustable earth boring deviceROCK BIT INTERNAT·Filed 2002·Granted Jun 8, 2004·66 cites·20 claims
- 0775US7140448B2Stepped polycrystalline diamond compact insertULTERRA DRILLING TECHNOLOGIES·Filed 2005·Granted Nov 28, 2006·16 cites·5 claims
- 0875US5074367ARock bit with improved shank protectionROCK BIT IND INC·Filed 1990·Granted Dec 24, 1991·61 cites·3 claims
- 0971US5244050ARock bit with offset tool portROCK BIT INTERNATIONAL INC·Filed 1992·Granted Sep 14, 1993·49 cites·16 claims
- 1066US4730681ARock bit cone lock and methodROCK BIT IND INC·Filed 1986·Granted Mar 15, 1988·36 cites·25 claims
- 1157US7025155B1Rock bit with channel structure for retaining cutter segmentsROCK BIT INTERNATIONAL L P·Filed 2003·Granted Apr 11, 2006·22 cites·23 claims
- 1257US6167975B1One cone rotary drill bit featuring enhanced groovesROCK BIT INTERNATIONAL INC·Filed 1999·Granted Jan 2, 2001·36 cites·24 claims
- 1351US6435287B2Sharp gage for mill tooth rock bitsROCK BIT INTERNATIONAL INC·Filed 2001·Granted Aug 20, 2002·11 cites·7 claims
- 1449US4911252ARock bit loose cone indicatorESTES ROY D·Filed 1989·Granted Mar 27, 1990·21 cites·5 claims
- 1548US11767715B2UnderreamerTRANSCO MFG AUSTRALIA PTY LTD·Filed 2018·Granted Sep 26, 2023·0 cites·20 claims
- 1638US2006283640A1Stepped polycrystalline diamond compact insertESTES ROY·Filed 2006·Application pending·0 cites
- 1737US2006266557A1Directable nozzle for rock drilling bitsESTES ROY·Filed 2005·Application pending·0 cites
- 1833US5454437ARoller cone core bitROCK BIT INTERNATIONAL INC·Filed 1993·Granted Oct 3, 1995·7 cites·9 claims
- 1933US2006196699A1Modular kerfing drill bitESTES ROY·Filed 2005·Application pending·0 cites
- 2031US6186250B1Sharp gage for mill tooth rockbitsROCK BIT INTERNATIONAL INC·Filed 1999·Granted Feb 13, 2001·4 cites·9 claims
- 2128US4537409ARadial rock bit sealROCK BIT IND INC·Filed 1984·Granted Aug 27, 1985·7 cites·21 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →