Brad Chisum

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San Diego, CA, US

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Patents Grantslast 30 patents

Information Patent Grant
Systems and methods for controlling oscillation of a gyroscope
- Patent number 9,645,166
- Issue date May 9, 2017
- Lumedyne Technologies Incorporated
- Richard Lee Waters
- G01 - MEASURING TESTING
Information Patent Grant
Time domain switched analog-to-digital converter apparatus and methods
- Patent number 8,952,838
- Issue date Feb 10, 2015
- Lumedyne Technologies, Inc.
- Richard Waters
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Grant
High sensitivity geophone
- Patent number 8,443,673
- Issue date May 21, 2013
- Lumedyne Technologies Incorporated
- Brad Chisum
- G01 - MEASURING TESTING
Information Patent Grant
Tunable resonant frequency kinetic energy harvester
- Patent number 8,188,622
- Issue date May 29, 2012
- The United States of America, as represented by the Secretary of the Navy
- Richard Waters
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER

Patents Applicationslast 30 patents

Information Patent Application
Systems and Methods for Determining Rotation from Nonlinear Periodi...
- Publication number 20150377622
- Publication date Dec 31, 2015
- Lumedyne Technologies Incorporated
- Richard Lee Waters
- G01 - MEASURING TESTING
Information Patent Application
TIME DOMAIN SWITCHED ANALOG-TO-DIGITAL CONVERTER APPARATUS AND METHODS
- Publication number 20130207824
- Publication date Aug 15, 2013
- Richard Waters
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Application
HIGH SENSITIVITY GEOPHONE
- Publication number 20110023614
- Publication date Feb 3, 2011
- Lumedyne Technologies Incorporated
- Brad Chisum
- G01 - MEASURING TESTING