Assignee
OYO CORP
JP·10 granted patents·1 pending application·315 citations·filing 1978–2014
Top patents by PatentIndex Score
11 records- 0186US7164476B2Apparatus and method for detecting pipeline defectsOYO CORP·Filed 2001·Granted Jan 16, 2007·88 cites·23 claims
- 0285US4525819AHorizontal geophone transducer assemblyOYO CORP·Filed 1982·Granted Jun 25, 1985·64 cites·3 claims
- 0378US4710593AGeophone cable splice and methodOYO CORP·Filed 1986·Granted Dec 1, 1987·41 cites·11 claims
- 0477US4207961AExciting method for logging by S waveOYO CORP·Filed 1978·Granted Jun 17, 1980·44 cites·3 claims
- 0554US5650726AEmitter for an electromagnetic tomography measurement system which connects a greater number of windings to a magnetic core at low frequencies than at high frequenciesOYO CORP·Filed 1995·Granted Jul 22, 1997·29 cites·3 claims
- 0647US5859533AProcess for the production of a supply current of a solenoid for a measuring probe for electromagnetic tomographyOYO CORP·Filed 1997·Granted Jan 12, 1999·22 cites·2 claims
- 0743US4594698APrinted-circuit disc for stringing geophonesOYO CORP·Filed 1984·Granted Jun 10, 1986·12 cites·9 claims
- 0838US2015369948A1Distributed survey system for obtaining underground electrical characteristics and distributed survey method using sameOYO CORP·Filed 2014·Application pending·0 cites
- 0930US5416281ADeadweight dropping type wave sourceOYO CORP·Filed 1992·Granted May 16, 1995·7 cites·18 claims
- 1030US4663747AVariflux vibration transducerOYO CORP·Filed 1984·Granted May 5, 1987·1 cites·25 claims
- 1129US5534668ADeadweight dropping type wave sourceOYO CORP·Filed 1995·Granted Jul 9, 1996·7 cites·16 claims
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Counts cover granted patents and pending applications in the PatentIndex corpus. How scoring works →