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David A. Fisher
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Menlo Park, CA, US
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Patents Grants
last 30 patents
Information
Patent Grant
Generating signatures based on sensing gas concentration conditions
Patent number
11,835,449
Issue date
Dec 5, 2023
Sparrow Detect Inc.
Eric R. Crosson
G01 - MEASURING TESTING
Information
Patent Grant
Apparatus and method for spectroscopically detecting a sample
Patent number
11,828,705
Issue date
Nov 28, 2023
Sparrow Detect, Inc.
Eric R. Crosson
G01 - MEASURING TESTING
Information
Patent Grant
Generating signatures based on sensing gas concentration conditions
Patent number
11,022,544
Issue date
Jun 1, 2021
Sparrow Detect, Inc.
Eric R. Crosson
G01 - MEASURING TESTING
Information
Patent Grant
Tunable light source cavity detection using a plurality of axial-pl...
Patent number
10,976,248
Issue date
Apr 13, 2021
Sparrow Detect, Inc.
Eric R. Crosson
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Tunable light source cavity detection using a plurality of axial-pl...
Patent number
10,724,946
Issue date
Jul 28, 2020
Sparrow Detect, Inc.
Eric R. Crosson
G01 - MEASURING TESTING
Information
Patent Grant
Control of conversion ratios of a power source block and bidirectio...
Patent number
9,991,782
Issue date
Jun 5, 2018
R2 Semiconductor
Edward Paul Coleman
H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information
Patent Grant
Control of conversion ratios of a power source block and a bidirect...
Patent number
9,716,433
Issue date
Jul 25, 2017
R2 Semiconductor, Inc
Edward Paul Coleman
H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information
Patent Grant
DC-DC converter enabling rapid output voltage changes
Patent number
9,069,365
Issue date
Jun 30, 2015
R2 Semiconductor, Inc
James E.C. Brown
G05 - CONTROLLING REGULATING
Information
Patent Grant
Decoupling circuits for filtering a voltage supply of multiple powe...
Patent number
8,773,200
Issue date
Jul 8, 2014
R2 Semiconductor, Inc
Cory Severson
H03 - BASIC ELECTRONIC CIRCUITRY
Information
Patent Grant
Over voltage protection of a switching converter
Patent number
8,634,171
Issue date
Jan 21, 2014
R2 Semiconductor, Inc
Lawrence M. Burns
H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information
Patent Grant
Stacked NMOS DC-to-DC power conversion
Patent number
8,593,128
Issue date
Nov 26, 2013
R2 Semiconductor, Inc
Lawrence M. Burns
H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information
Patent Grant
Multi-use voltage regulator
Patent number
8,362,649
Issue date
Jan 29, 2013
R2 Semiconductor, Inc
David Fisher
H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information
Patent Grant
Over voltage protection of switching converter
Patent number
8,233,250
Issue date
Jul 31, 2012
R2 Semiconductor, Inc
Lawrence M. Burns
H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information
Patent Grant
Stacked NMOS DC-to-DC power conversion
Patent number
8,212,536
Issue date
Jul 3, 2012
R2 Semiconductor, Inc
Lawrence M. Burns
H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information
Patent Grant
Power transfer apparatus for concurrently transmitting data and pow...
Patent number
7,005,969
Issue date
Feb 28, 2006
David A. Fisher
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Power transfer apparatus for concurrently transmitting data and pow...
Patent number
6,989,735
Issue date
Jan 24, 2006
3Com Corporation
David A. Fisher
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Power transfer apparatus for concurrently transmitting data and pow...
Patent number
6,753,761
Issue date
Jun 22, 2004
3COM Corporation
David A. Fisher
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Dynamic adjustment to preserve signal-to-noise ratio in a quadratur...
Patent number
6,751,272
Issue date
Jun 15, 2004
3COM Corporation
Lawrence M. Burns
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Power transfer apparatus for concurrently transmitting data and pow...
Patent number
6,710,704
Issue date
Mar 23, 2004
3COM Corporation
David A. Fisher
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Power transfer apparatus for concurrently transmitting data and pow...
Patent number
6,496,105
Issue date
Dec 17, 2002
3COM Corporation
David A. Fisher
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Power transfer apparatus for concurrently transmitting data and pow...
Patent number
6,329,906
Issue date
Dec 11, 2001
3COM Corporation
David A. Fisher
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Method and apparatus for assigning spectrum of a local area network
Patent number
6,208,629
Issue date
Mar 27, 2001
3COM Corporation
Gary M. Jaszewski
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Power transfer apparatus for concurrently transmitting data and pow...
Patent number
6,140,911
Issue date
Oct 31, 2000
3COM Corporation
David A. Fisher
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Power transfer apparatus for concurrently transmitting data and pow...
Patent number
5,994,998
Issue date
Nov 30, 1999
3COM Corporation
David A. Fisher
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
High frequency signal detector
Patent number
5,936,537
Issue date
Aug 10, 1999
3COM Corporation
Lawrence M. Burns
G01 - MEASURING TESTING
Information
Patent Grant
Method and apparatus for assigning spectrum of a wireless local are...
Patent number
5,933,420
Issue date
Aug 3, 1999
3COM Corporation
Gary M. Jaszewski
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Radio based collision detection for wireless communication system
Patent number
5,657,326
Issue date
Aug 12, 1997
3COM Corporation
Lawrence M. Burns
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Patents Applications
last 30 patents
Information
Patent Application
Apparatus and Method for Spectroscopically Detecting a Sample
Publication number
20230314318
Publication date
Oct 5, 2023
Sparrow Detect, Inc.
Eric R. Crosson
G01 - MEASURING TESTING
Information
Patent Application
GENERATING SIGNATURES BASED ON SENSING GAS CONCENTRATION CONDITIONS
Publication number
20210247299
Publication date
Aug 12, 2021
Sparrow Detect, Inc.
Eric R. Crosson
G01 - MEASURING TESTING
Information
Patent Application
TUNABLE LIGHT SOURCE CAVITY DETECTION USING A PLURALITY OF AXIAL-PL...
Publication number
20200319101
Publication date
Oct 8, 2020
Sparrow Detect, Inc.
Eric R. Crosson
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Application
GENERATING SIGNATURES BASED ON SENSING GAS CONCENTRATION CONDITIONS
Publication number
20200217787
Publication date
Jul 9, 2020
Sparrow Detect, Inc.
Eric R. Crosson
G01 - MEASURING TESTING
Information
Patent Application
TUNABLE LIGHT SOURCE CAVITY DETECTION USING A PLURALITY OF AXIAL-PL...
Publication number
20190086329
Publication date
Mar 21, 2019
Sparrow Detect, Inc.
Eric R. Crosson
G01 - MEASURING TESTING
Information
Patent Application
Method for Joint Control of a Power Source and Active Filter
Publication number
20170310205
Publication date
Oct 26, 2017
R2 Semiconductor, Inc.
Edward Paul Coleman
H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information
Patent Application
Method for Joint Control of a Power Source and Active Filter
Publication number
20160211750
Publication date
Jul 21, 2016
R2 Semiconductor, Inc.
Edward Paul Coleman
H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information
Patent Application
DECOUPLING CIRCUITS FOR FILTERING A VOLTAGE SUPPLY OF MULTIPLE POWE...
Publication number
20140009226
Publication date
Jan 9, 2014
R2 Semiconductor, Inc.
Cory Severson
H03 - BASIC ELECTRONIC CIRCUITRY
Information
Patent Application
DC-DC CONVERTER ENABLING RAPID OUTPUT VOLTAGE CHANGES
Publication number
20130249505
Publication date
Sep 26, 2013
R2 Semiconductor, Inc.
James E.C. Brown
H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information
Patent Application
Over Voltage Protection of a Switching Converter
Publication number
20120257311
Publication date
Oct 11, 2012
R2 Semiconductor, Inc.
Lawrence M. Burns
H03 - BASIC ELECTRONIC CIRCUITRY
Information
Patent Application
Stacked NMOS DC-To-DC Power Conversion
Publication number
20120229102
Publication date
Sep 13, 2012
R2 SEMICONDUCTOR, INC.
Lawrence M. Burns
H03 - BASIC ELECTRONIC CIRCUITRY
Information
Patent Application
Mult-Use Voltage Regulator
Publication number
20110309679
Publication date
Dec 22, 2011
R2 Semiconductor, Inc.
David Fisher
Y10 - TECHNICAL SUBJECTS COVERED BY FORMER USPC
Information
Patent Application
Over Voltage Protection of a Switching Converter
Publication number
20110148200
Publication date
Jun 23, 2011
R2 SEMICONDUCTOR, INC.
Lawrence M. Burns
H03 - BASIC ELECTRONIC CIRCUITRY
Information
Patent Application
Stacked NMOS DC-To-DC Power Conversion
Publication number
20110148368
Publication date
Jun 23, 2011
R2 SEMICONDUCTOR, INC.
Lawrence M. Burns
H03 - BASIC ELECTRONIC CIRCUITRY
Information
Patent Application
Power transfer apparatus for concurrently transmitting data and pow...
Publication number
20040174251
Publication date
Sep 9, 2004
3Com Corporation
David A. Fisher
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
Power transfer apparatus for concurrently transmitting data and pow...
Publication number
20040160312
Publication date
Aug 19, 2004
3Com Corporation
David A. Fisher
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
Power transfer apparatus for concurrently transmitting data and pow...
Publication number
20030062991
Publication date
Apr 3, 2003
3Com Corporation
David A. Fisher
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
Power transfer apparatus for concurrently transmitting data and pow...
Publication number
20030058085
Publication date
Mar 27, 2003
3Com Corporation
David A. Fisher
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
Power transfer apparatus for concurrently transmitting data and pow...
Publication number
20020021209
Publication date
Feb 21, 2002
3Com Corporation
David A. Fisher
H04 - ELECTRIC COMMUNICATION TECHNIQUE