SCHONSTEDT INSTRUMENT COMPANY

Organization

SILVER SPRING, MD, US

Organizations

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Patents Grantslast 30 patents

Information Patent Grant
Magnetic cores for saturable core measuring devices and methods of...
- Patent number 5,239,290
- Issue date Aug 24, 1993
- Schonstedt Instrument Company
- Erick O. Schonstedt
- G01 - MEASURING TESTING
Information Patent Grant
Methods, apparatus and devices relating to magnetic markers for elo...
- Patent number 5,206,065
- Issue date Apr 27, 1993
- Schonstedt Instrument Company
- John B. Rippingale
- B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
Information Patent Grant
Method for providing magnetic markers on elongated hidden objects
- Patent number 5,173,139
- Issue date Dec 22, 1992
- Schonstedt Instrument Company
- John B. Rippingale
- B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
Information Patent Grant
Method of manufacturing magnetic detection apparatus
- Patent number 5,138,761
- Issue date Aug 18, 1992
- Schonstedt Instrument Company
- Erick O. Schonstedt
- G01 - MEASURING TESTING
Information Patent Grant
Magnetic detection apparatus with sensors mounted on channel or ang...
- Patent number 5,136,245
- Issue date Aug 4, 1992
- Schonstedt Instrument Company
- Erick O. Schonstedt
- G01 - MEASURING TESTING
Information Patent Grant
Methods employing permanent magnets for marking, locating, tracing...
- Patent number 5,122,750
- Issue date Jun 16, 1992
- Schonstedt Instrument Company
- John B. Rippingale
- G02 - OPTICS
Information Patent Grant
Methods, apparatus and devices relating to magnetic markers for elo...
- Patent number 5,114,517
- Issue date May 19, 1992
- Schonstedt Instrument Company
- John B. Rippingale
- B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
Information Patent Grant
Magnetic detection appartaus with plastic housing and sound-transmi...
- Patent number 5,097,211
- Issue date Mar 17, 1992
- Schonstedt Instrument Company
- Erick O. Schonstedt
- G01 - MEASURING TESTING
Information Patent Grant
Methods and apparatus employing permanent magnets for marking, loca...
- Patent number 5,017,873
- Issue date May 21, 1991
- Schonstedt Instrument Company
- John B. Rippingale
- G02 - OPTICS
Information Patent Grant
Methods and apparatus employing permanent magnets for marking, loca...
- Patent number 5,006,806
- Issue date Apr 9, 1991
- Schonstedt Instrument Company
- John B. Rippingale
- G02 - OPTICS
Information Patent Grant
Magnetic cores
- Patent number 4,839,624
- Issue date Jun 13, 1989
- Schonstedt Instrument Company
- Erick O. Schonstedt
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Magnetic core blanks of magnetically permeable sheet material
- Patent number 4,839,623
- Issue date Jun 13, 1989
- Schonstedt Instrument Company
- Erick O. Schonstedt
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Magnetic locating and tracing system and method using dual-antenna...
- Patent number 4,818,944
- Issue date Apr 4, 1989
- Schonstedt Instrument Company
- John B. Rippingale
- G01 - MEASURING TESTING
Information Patent Grant
Method of making magnetic cores
- Patent number 4,803,773
- Issue date Feb 14, 1989
- Schonstedt Instrument Company
- Erick O. Schonstedt
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Manufacture of magnetic cores from blanks of magnetically permeable...
- Patent number 4,747,207
- Issue date May 31, 1988
- Schonstedt Instrument Company
- Erick O. Schonstedt
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Apparatus and method employing extraneous field compensation for lo...
- Patent number 4,639,674
- Issue date Jan 27, 1987
- Schonstedt Instrument Company
- John B. Rippingale
- G01 - MEASURING TESTING
Information Patent Grant
Magnetic detector apparatus with excitation conductors connected in...
- Patent number 4,590,425
- Issue date May 20, 1986
- Schonstedt Instrument Company
- Erick O. Schonstedt
- G01 - MEASURING TESTING
Information Patent Grant
Magnetic detector apparatus with liquid-supported, conductive, sens...
- Patent number 4,539,522
- Issue date Sep 3, 1985
- Schonstedt Instrument Company
- Erick O. Schonstedt
- G01 - MEASURING TESTING
Information Patent Grant
Magnetic detector instrument with board-mounted sensor assembly
- Patent number 4,536,710
- Issue date Aug 20, 1985
- Schonstedt Instrument Company
- Warren D. Dunham
- G01 - MEASURING TESTING
Information Patent Grant
Multiaxis magnetometer apparatus with orthogonally disposed rectang...
- Patent number 4,388,592
- Issue date Jun 14, 1983
- Schonstedt Instrument Company
- Erick O. Schonstedt
- G01 - MEASURING TESTING
Information Patent Grant
Apparatus and method employing foam sleeves for supporting magnetic...
- Patent number 4,258,320
- Issue date Mar 24, 1981
- Schonstedt Instrument Company
- Erick O. Schonstedt
- G01 - MEASURING TESTING
Information Patent Grant
Magnetic locator
- Patent number D255552
- Issue date Jun 24, 1980
- Schonstedt Instrument Company
- Erick O. Schonstedt
- D10 - Measuring, testing, or signalling instruments
Information Patent Grant
Housing for circuitry and loudspeaker of a magnetic locator shields...
- Patent number 4,163,877
- Issue date Aug 7, 1979
- Schonstedt Instrument Company
- Erick O. Schonstedt
- G01 - MEASURING TESTING
Information Patent Grant
Battery holder
- Patent number 4,161,568
- Issue date Jul 17, 1979
- Schonstedt Instrument Company
- John Lund
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Magnetic detecting apparatus with novel means for positioning senso...
- Patent number 4,110,689
- Issue date Aug 29, 1978
- Schonstedt Instrument Company
- Erick O. Schonstedt
- G01 - MEASURING TESTING
Information Patent Grant
Method of manufacturing a magnetic locator
- Patent number 3,977,072
- Issue date Aug 31, 1976
- Schonstedt Instrument Company
- Erick O. Schonstedt
- G01 - MEASURING TESTING
Information Patent Grant
Magnetic locator having improved sensors
- Patent number 3,961,245
- Issue date Jun 1, 1976
- Schonstedt Instrument Company
- Erick O. Schonstedt
- G01 - MEASURING TESTING

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Trademarklast 30 trademarks

Information Trademark
86302570 - MAGGIE
- Serial number 86302570
- Registration number 4819045
- Filing date Jun 6, 2014
- Schonstedt Instrument Company, Inc.
- 9 - Scientific, nautical, surveying, photographic, cinematographic, optical, weighing, measuring, signalling, checking (supervision), life-saving and teaching apparatus and instruments
Information Trademark
76098391 - SCHONSTEDT
- Serial number 76098391
- Registration number 2475765
- Filing date Jul 28, 2000
- Schonstedt Instrument Company LLC
- 9 - Scientific, nautical, surveying, photographic, cinematographic, optical, weighing, measuring, signalling, checking (supervision), life-saving and teaching apparatus and instruments
Information Trademark
75548754 - WATER HOUND
- Serial number 75548754
- Registration number 2340160
- Filing date Sep 4, 1998
- Schonstedt Instrument Company LLC
- 9 - Scientific, nautical, surveying, photographic, cinematographic, optical, weighing, measuring, signalling, checking (supervision), life-saving and teaching apparatus and instruments
Information Trademark
73126103 - SI
- Serial number 73126103
- Registration number 1085390
- Filing date May 4, 1977
- SCHONSTEDT INSTRUMENT COMPANY
- 9 - Scientific, nautical, surveying, photographic, cinematographic, optical, weighing, measuring, signalling, checking (supervision), life-saving and teaching apparatus and instruments

SCHONSTEDT INSTRUMENT COMPANY

Organization

Patents Grantslast 30 patents

Magnetic cores for saturable core measuring devices and methods of...

Methods, apparatus and devices relating to magnetic markers for elo...

Method for providing magnetic markers on elongated hidden objects

Method of manufacturing magnetic detection apparatus

Magnetic detection apparatus with sensors mounted on channel or ang...

Methods employing permanent magnets for marking, locating, tracing...

Methods, apparatus and devices relating to magnetic markers for elo...

Magnetic detection appartaus with plastic housing and sound-transmi...

Methods and apparatus employing permanent magnets for marking, loca...

Methods and apparatus employing permanent magnets for marking, loca...

Magnetic cores

Magnetic core blanks of magnetically permeable sheet material

Magnetic locating and tracing system and method using dual-antenna...

Method of making magnetic cores

Manufacture of magnetic cores from blanks of magnetically permeable...

Apparatus and method employing extraneous field compensation for lo...

Magnetic detector apparatus with excitation conductors connected in...

Magnetic detector apparatus with liquid-supported, conductive, sens...

Magnetic detector instrument with board-mounted sensor assembly

Multiaxis magnetometer apparatus with orthogonally disposed rectang...

Apparatus and method employing foam sleeves for supporting magnetic...

Magnetic locator

Housing for circuitry and loudspeaker of a magnetic locator shields...

Battery holder

Magnetic detecting apparatus with novel means for positioning senso...

Method of manufacturing a magnetic locator

Magnetic locator having improved sensors

Trademarklast 30 trademarks

86302570 - MAGGIE

76098391 - SCHONSTEDT

75548754 - WATER HOUND

73126103 - SI