Inventor · disambiguated record
Billy J. Roberts
Also filed as: ROBERTS BILLY J
8 granted patents·1 pending application·247 citations·filing 1991–2001
89Inventor score
Technology areasE21B
Top patents by PatentIndex Score
9 records- 0172US5288271AConstant velocity universal joint assembly for downhole motorHOUSTON ENGINEERS INC·Filed 1992·Granted Feb 22, 1994·60 cites·6 claims
- 0262US6626248B1Assembly and method for jarring a drilling drive pipe into undersea formationSMITH INTERNATIONAL·Filed 2000·Granted Sep 30, 2003·26 cites·26 claims
- 0362US5447196AHydraulic jarFiled 1994·Granted Sep 5, 1995·41 cites·7 claims
- 0454US5595244AHydraulic jarHOUSTON ENGINEERS INC·Filed 1995·Granted Jan 21, 1997·37 cites·1 claims
- 0554US5174393AHydraulic jarHOUSTON ENGINEERS INC·Filed 1991·Granted Dec 29, 1992·35 cites·11 claims
- 0647US5425430AJar enhancerHOUSTON ENGINEERS INC·Filed 1994·Granted Jun 20, 1995·22 cites·8 claims
- 0745US5431221AJar enhancerHOUSTON ENGINEERS INC·Filed 1993·Granted Jul 11, 1995·26 cites·8 claims
- 0833US6715962B2Assembly and floatation method for drilling drivepipeSMITH INTERNATIONAL·Filed 2001·Granted Apr 6, 2004·0 cites·13 claims
- 0931US2001027878A1Assembly and floatation method for drilling drivepipe and jarring systemFiled 2001·Application pending·0 cites
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →