Inventor · disambiguated record
Richard A. Armell
Also filed as: ARMELL RICHARD A · ARMELL RICHARD ALVIN
13 granted patents·3 pending applications·625 citations·filing 1980–2016
93Inventor score
Files withBOC NOWSCO LTD2DREXEL EQUIPMENT LTD2ARMELL RICHARD A1COOPER RUAIRIDH ANDREW1DREXEL EQUIPMENT U K LIMITED1
Top patents by PatentIndex Score
16 records- 0193US5853054A2-Stage underreamerSMITH INTERNATIONAL·Filed 1995·Granted Dec 29, 1998·179 cites·15 claims
- 0288US5890540ADownhole toolRENOVUS LTD·Filed 1996·Granted Apr 6, 1999·149 cites·18 claims
- 0385US4805448ADownhole pressure and/or temperature gaugesDREXEL EQUIPMENT LTD·Filed 1987·Granted Feb 21, 1989·60 cites·13 claims
- 0470US4790381ACentralizing devices for use in bore-holesDREXEL EQUIPMENT U K LIMITED·Filed 1987·Granted Dec 13, 1988·47 cites·18 claims
- 0569US4429566APiping leakage detection method and apparatusBOC NOWSCO LTD·Filed 1980·Granted Feb 7, 1984·38 cites·16 claims
- 0667US7143848B2Downhole toolARMELL RICHARD A·Filed 2004·Granted Dec 5, 2006·37 cites·6 claims
- 0764US5819353ATool for cleaning or conditioning tubular structures such as well casingsOILTOOLS INT BV·Filed 1996·Granted Oct 13, 1998·48 cites·29 claims
- 0864US4619322ACentralizing devices for use down-wellDREXEL EQUIPMENT LTD·Filed 1984·Granted Oct 28, 1986·32 cites·3 claims
- 0950USRE46286EDownhole mixing toolSERVWELL ENG LTD·Filed 2016·Granted Jan 24, 2017·0 cites·19 claims
- 1047US4964460AShut-in toolELJAY WELL SERVICES LIMITED·Filed 1989·Granted Oct 23, 1990·23 cites·20 claims
- 1139US8684086B2Downhole mixing toolCOOPER RUAIRIDH ANDREW·Filed 2011·Granted Apr 1, 2014·0 cites·18 claims
- 1236US6561286B2Well bore reamer and methodFiled 2001·Granted May 13, 2003·9 cites·12 claims
- 1332US2002185312A1Impact toolFiled 2002·Application pending·0 cites
- 1430US4438938ASeal for incorporation in high pressure leak testing toolBOC NOWSCO LTD·Filed 1983·Granted Mar 27, 1984·3 cites·9 claims
- 1524US2002070052A1Reaming tool with radially extending bladesFiled 2001·Application pending·0 cites
- 1624US2002070015A1Down-hole tool hydraulic force intensifierFiled 2001·Application pending·0 cites
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →