Inventor · disambiguated record
Jerry K. Lingafelter
Also filed as: LINGAFELTER JERRY · LINGAFELTER JERRY K
6 granted patents·413 citations·filing 1980–1991
86Inventor score
Top patents by PatentIndex Score
6 records- 0193US4867236ACompact casing tongs for use on top head drive earth drilling machineAPACHE CORP·Filed 1988·Granted Sep 19, 1989·188 cites·32 claims
- 0290US5294228AAutomatic sequencing system for earth drilling machineAPACHE CORP·Filed 1991·Granted Mar 15, 1994·146 cites·5 claims
- 0374US4366606ASelf-centering clamp for down-hole tubularsWALKER NEER MFG CO·Filed 1980·Granted Jan 4, 1983·44 cites·14 claims
- 0466US4593774ADownhole bearing assemblyGEO MAX DRILL CORP·Filed 1985·Granted Jun 10, 1986·29 cites·10 claims
- 0530US4407373ACollapsible pedestal for drilling apparatusWALKER NEER MFG CO·Filed 1981·Granted Oct 4, 1983·3 cites·7 claims
- 0622US4406098ADrilling rampWALKER NEER MFG CO·Filed 1981·Granted Sep 27, 1983·3 cites·17 claims
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