Inventor · disambiguated record
John L. Evans
Also filed as: EVANS JOHN L · EVANS JOHN LORENZ
14 granted patents·470 citations·filing 1974–2007
94Inventor score
Files withSINGER CO4EXXON PRODUCTION RESEARCH CO3CHRYSLER MOTORS2CHUBB FIRE SECURITY LTD2ACUSTAR INC1
Top patents by PatentIndex Score
14 records- 0196US4440239AMethod and apparatus for controlling the flow of drilling fluid in a wellboreEXXON PRODUCTION RESEARCH CO·Filed 1981·Granted Apr 3, 1984·188 cites·43 claims
- 0283US4553429AMethod and apparatus for monitoring fluid flow between a borehole and the surrounding formations in the course of drilling operationsEXXON PRODUCTION RESEARCH CO·Filed 1984·Granted Nov 19, 1985·68 cites·14 claims
- 0383US4155521ACannon launched platformSINGER CO·Filed 1975·Granted May 22, 1979·47 cites·13 claims
- 0474US4570353AMagnetic single shot inclinometerEXXON PRODUCTION RESEARCH CO·Filed 1984·Granted Feb 18, 1986·41 cites·14 claims
- 0573US4392618ALiquid-projecting monitorCHUBB FIRE SECURITY LTD·Filed 1981·Granted Jul 12, 1983·34 cites·8 claims
- 0669US4506738ALiquid-projecting monitorCHUBB FIRE SECURITY LTD·Filed 1983·Granted Mar 26, 1985·29 cites·4 claims
- 0766US4036453AWide angle torquing schemeSINGER CO·Filed 1976·Granted Jul 19, 1977·23 cites·6 claims
- 0864US3960691ATactical rate sensorSINGER CO·Filed 1975·Granted Jun 1, 1976·14 cites·6 claims
- 0955US7993573B2Slag transport and dumping apparatus and methodPALING TRANSPORTER LTD·Filed 2007·Granted Aug 9, 2011·5 cites·47 claims
- 1037US3992955ATwo axis caging systemSINGER CO·Filed 1974·Granted Nov 23, 1976·5 cites·10 claims
- 1133US4728920APressure transducerCHRYSLER MOTORS·Filed 1987·Granted Mar 1, 1988·4 cites·3 claims
- 1232US5038099ARadial air-core gaugeACUSTAR INC·Filed 1989·Granted Aug 6, 1991·5 cites·7 claims
- 1332US4821836AVehicle integral speedometer and automatic door lock systemCHRYSLER MOTORS·Filed 1988·Granted Apr 18, 1989·4 cites·4 claims
- 1428US5438513AAutomotive electronics test systemCHRYSLER CORP·Filed 1993·Granted Aug 1, 1995·3 cites·8 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →