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Frederick L. Lichtenfels II
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Vergennes, VT, US
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last 30 patents
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Patent Grant
Ultrasonic fluid level sensing without using a stillwell
Patent number
6,581,459
Issue date
Jun 24, 2003
Simmonds Precision Products, Inc.
Frederick Lloyd Lichtenfels
G01 - MEASURING TESTING
Information
Patent Grant
Removable ultrasonic transducer with integral electrical disconnect
Patent number
5,761,955
Issue date
Jun 9, 1998
Simmonds Precision Products, Inc.
Frederick L. Lichtenfels
B06 - GENERATING OR TRANSMITTING MECHANICAL VIBRATIONS IN GENERAL
Information
Patent Grant
Fluid gauging apparatus using magnetostrictive sensor and stick gauge
Patent number
5,723,870
Issue date
Mar 3, 1998
Simmonds Precision Products Inc.
David Henry Crowne
B64 - AIRCRAFT AVIATION COSMONAUTICS
Information
Patent Grant
Removable ultrasonic transducer with integral electrical disconnect
Patent number
5,669,262
Issue date
Sep 23, 1997
Simmonds Precision Products, Inc.
Frederick Lloyd Lichtenfels
B06 - GENERATING OR TRANSMITTING MECHANICAL VIBRATIONS IN GENERAL
Information
Patent Grant
Multiple optic sensor system
Patent number
5,408,092
Issue date
Apr 18, 1995
Simmonds Precision Products, Inc.
Lisa B. Maurice
G01 - MEASURING TESTING
Information
Patent Grant
Intrusive acoustic sensor mounting arrangement
Patent number
5,379,658
Issue date
Jan 10, 1995
Simmonds Precision Products, Inc.
Frederick L. Lichtenfels
G10 - MUSICAL INSTRUMENTS ACOUSTICS
Information
Patent Grant
External sealed intrusive mounting arrangement for a fuel level sensor
Patent number
5,315,563
Issue date
May 24, 1994
Simmonds Precision Products, Inc.
Frederick L. Lichtenfels
G01 - MEASURING TESTING