Inventor · disambiguated record
Erick O. Schonstedt
Also filed as: SCHONSTEDT ERICK O
23 granted patents·1,368 citations·filing 1974–1992
97Inventor score
Top patents by PatentIndex Score
23 records- 0195US4258320AApparatus and method employing foam sleeves for supporting magnetic sensors in a tubular housingSCHONSTEDT INSTRUMENT CO·Filed 1978·Granted Mar 24, 1981·70 cites·12 claims
- 0294US5006806AMethods and apparatus employing permanent magnets for marking, locating, tracing and identifying hidden objects such as burried fiber optic cablesSCHONSTEDT INSTRUMENT CO·Filed 1989·Granted Apr 9, 1991·152 cites·15 claims
- 0393US4803773AMethod of making magnetic coresSCHONSTEDT INSTRUMENT CO·Filed 1986·Granted Feb 14, 1989·77 cites·14 claims
- 0492US4839624AMagnetic coresSCHONSTEDT INSTRUMENT CO·Filed 1988·Granted Jun 13, 1989·50 cites·11 claims
- 0591US5017873AMethods and apparatus employing permanent magnets for marking, locating, tracing and identifying hidden objects such as buried fiber optic cablesSCHONSTEDT INSTRUMENT CO·Filed 1990·Granted May 21, 1991·130 cites·45 claims
- 0691US4839623AMagnetic core blanks of magnetically permeable sheet materialSCHONSTEDT INSTRUMENT CO·Filed 1988·Granted Jun 13, 1989·60 cites·6 claims
- 0790US5114517AMethods, apparatus and devices relating to magnetic markers for elongated hidden objectsSCHONSTEDT INSTRUMENT CO·Filed 1990·Granted May 19, 1992·106 cites·24 claims
- 0890US4388592AMultiaxis magnetometer apparatus with orthogonally disposed rectangular housings for mounting separate sensor assembliesSCHONSTEDT INSTRUMENT CO·Filed 1980·Granted Jun 14, 1983·55 cites·16 claims
- 0989US5122750AMethods employing permanent magnets for marking, locating, tracing and identifying hidden objects such as buried fiber optic cablesSCHONSTEDT INSTRUMENT CO·Filed 1991·Granted Jun 16, 1992·107 cites·21 claims
- 1089US4539522AMagnetic detector apparatus with liquid-supported, conductive, sensor-support tubeSCHONSTEDT INSTRUMENT CO·Filed 1982·Granted Sep 3, 1985·49 cites·5 claims
- 1188US5097211AMagnetic detection appartaus with plastic housing and sound-transmissive handleSCHONSTEDT INSTRUMENT CO·Filed 1990·Granted Mar 17, 1992·81 cites·14 claims
- 1288US4590425AMagnetic detector apparatus with excitation conductors connected in series via sensor housingSCHONSTEDT INSTRUMENT CO·Filed 1985·Granted May 20, 1986·52 cites·4 claims
- 1387US5206065AMethods, apparatus and devices relating to magnetic markers for elongated hidden objectsSCHONSTEDT INSTRUMENT CO·Filed 1992·Granted Apr 27, 1993·81 cites·1 claims
- 1486US4747207AManufacture of magnetic cores from blanks of magnetically permeable sheet materialSCHONSTEDT INSTRUMENT CO·Filed 1986·Granted May 31, 1988·54 cites·6 claims
- 1585US5239290AMagnetic cores for saturable core measuring devices and methods of manufacturing such coresSCHONSTEDT INSTRUMENT CO·Filed 1992·Granted Aug 24, 1993·38 cites·14 claims
- 1681US5173139AMethod for providing magnetic markers on elongated hidden objectsSCHONSTEDT INSTRUMENT CO·Filed 1992·Granted Dec 22, 1992·54 cites·8 claims
- 1776US3961245AMagnetic locator having improved sensorsSCHONSTEDT INSTRUMENT CO·Filed 1974·Granted Jun 1, 1976·19 cites·20 claims
- 1875US5136245AMagnetic detection apparatus with sensors mounted on channel or angle cantilever supportSCHONSTEDT INSTRUMENT CO·Filed 1991·Granted Aug 4, 1992·45 cites·1 claims
- 1973USD255552SMagnetic locatorSCHONSTEDT INSTRUMENT CO·Filed 1978·Granted Jun 24, 1980·10 cites·1 claims
- 2071US5138761AMethod of manufacturing magnetic detection apparatusSCHONSTEDT INSTRUMENT CO·Filed 1991·Granted Aug 18, 1992·41 cites·3 claims
- 2167US4163877AHousing for circuitry and loudspeaker of a magnetic locator shields and resiliently mounts the loudspeakerSCHONSTEDT INSTR·Filed 1978·Granted Aug 7, 1979·21 cites·9 claims
- 2258US4110689AMagnetic detecting apparatus with novel means for positioning sensor assembly in a housingSCHONSTEDT INSTRUMENT CO·Filed 1977·Granted Aug 29, 1978·12 cites·4 claims
- 2334US3977072AMethod of manufacturing a magnetic locatorSCHONSTEDT INSTRUMENT CO·Filed 1975·Granted Aug 31, 1976·4 cites·7 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →