Assignee
DEL NORTE TECHNOLOGY
17 granted patents·712 citations·filing 1972–1994
Top patents by PatentIndex Score
17 records- 0190US4821023AWalk-through metal detectorDEL NORTE TECHNOLOGY·Filed 1988·Granted Apr 11, 1989·113 cites·17 claims
- 0286US4398195AMethod of and apparatus for guiding agricultural aircraftDEL NORTE TECHNOLOGY·Filed 1979·Granted Aug 9, 1983·47 cites·20 claims
- 0384US4636795ARadio ranging, navigation, and location system with correction for systematic errorsDEL NORTE TECHNOLOGY·Filed 1985·Granted Jan 13, 1987·66 cites·18 claims
- 0484US4073341AAcoustically controlled subsurface safety valve systemDEL NORTE TECHNOLOGY·Filed 1976·Granted Feb 14, 1978·48 cites·15 claims
- 0583US5451964AMethod and system for resolving double difference GPS carrier phase integer ambiguity utilizing decentralized Kalman filtersDEL NORTE TECHNOLOGY·Filed 1994·Granted Sep 19, 1995·162 cites·8 claims
- 0683US4129184ADownhole valve which may be installed or removed by a wireline running toolDEL NORTE TECHNOLOGY·Filed 1977·Granted Dec 12, 1978·53 cites·23 claims
- 0779US4275398AFM Radio ranging systemDEL NORTE TECHNOLOGY·Filed 1979·Granted Jun 23, 1981·38 cites·19 claims
- 0874US3961308AOil and gas well disaster valve control systemDEL NORTE TECHNOLOGY·Filed 1972·Granted Jun 1, 1976·29 cites·7 claims
- 0973US4038632AOil and gas well disaster valve control systemDEL NORTE TECHNOLOGY·Filed 1975·Granted Jul 26, 1977·24 cites·11 claims
- 1072US4536753ASelf monitoring intruder detecting system of noise-cancelling vibration detectorsDEL NORTE TECHNOLOGY·Filed 1982·Granted Aug 20, 1985·30 cites·8 claims
- 1168US4042923ARadar trilateralization position locatorsDEL NORTE TECHNOLOGY·Filed 1975·Granted Aug 16, 1977·21 cites·8 claims
- 1255US4074762AWireline running toolDEL NORTE TECHNOLOGY·Filed 1976·Granted Feb 21, 1978·19 cites·19 claims
- 1354US4543530AMethods of and means for determining the time-center of pulsesDEL NORTE TECHNOLOGY·Filed 1982·Granted Sep 24, 1985·14 cites·1 claims
- 1454US4398198APulse-hyperbolic location system using three passive beacon measurementsDEL NORTE TECHNOLOGY·Filed 1980·Granted Aug 9, 1983·14 cites·22 claims
- 1550US3938146ASecure encoder for trilateralization locator utilizing very narrow acceptance periodsDEL NORTE TECHNOLOGY·Filed 1974·Granted Feb 10, 1976·11 cites·7 claims
- 1649US4222440AMethods of small volume pumping especially suited for oil recovery from stripper wellsDEL NORTE TECHNOLOGY·Filed 1978·Granted Sep 16, 1980·14 cites·9 claims
- 1736US4115773ASynchronized pulse amplitude control for pulse measuring circuitsDEL NORTE TECHNOLOGY·Filed 1977·Granted Sep 19, 1978·9 cites·9 claims
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