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David Helms
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Tyngsboro, MA, US
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Patents Grants
last 30 patents
Information
Patent Grant
Apparatus and method for gallium nitride (GaN) amplifiers
Patent number
9,819,316
Issue date
Nov 14, 2017
Lockheed Martin Corporation
David R. Helms
H03 - BASIC ELECTRONIC CIRCUITRY
Information
Patent Grant
High linearity, high efficiency, low noise, gain block using cascod...
Patent number
9,240,756
Issue date
Jan 19, 2016
Lockheed Martin Corporation
David R. Helms
H03 - BASIC ELECTRONIC CIRCUITRY
Information
Patent Grant
High linearity low noise amplifier
Patent number
9,219,450
Issue date
Dec 22, 2015
Lockheed Martin Corporation
David R. Helms
H03 - BASIC ELECTRONIC CIRCUITRY
Information
Patent Grant
Integrated-circuit amplifier with low temperature rise
Patent number
8,963,645
Issue date
Feb 24, 2015
Lockheed Martin Corporation
David R. Helms
H03 - BASIC ELECTRONIC CIRCUITRY
Information
Patent Grant
Wide bandwidth RF power limiter
Patent number
8,918,068
Issue date
Dec 23, 2014
Lockheed Martin Corporation
David R. Helms
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Integrated-circuit amplifier with low temperature rise
Patent number
8,466,747
Issue date
Jun 18, 2013
Lockheed Martin Corporation
David R. Helms
H03 - BASIC ELECTRONIC CIRCUITRY
Information
Patent Grant
SiGe differential cascode amplifier with miller effect resonator
Patent number
7,205,836
Issue date
Apr 17, 2007
M/A-COM, Inc.
David Richard Helms
H03 - BASIC ELECTRONIC CIRCUITRY
Information
Patent Grant
Integrated power amplifier circuit
Patent number
6,917,243
Issue date
Jul 12, 2005
SiGe Semiconductor Inc.
Mark Doherty
H03 - BASIC ELECTRONIC CIRCUITRY
Information
Patent Grant
Integrated power amplifier circuit
Patent number
6,882,220
Issue date
Apr 19, 2005
SiGe Semiconductor Inc.
Mark Doherty
H03 - BASIC ELECTRONIC CIRCUITRY
Information
Patent Grant
Integrated power amplifier circuit
Patent number
6,825,725
Issue date
Nov 30, 2004
SiGe Semiconductor Inc.
Mark Doherty
H03 - BASIC ELECTRONIC CIRCUITRY
Information
Patent Grant
Integrated power amplifier circuit
Patent number
6,822,511
Issue date
Nov 23, 2004
SiGe Semiconductor Inc.
Mark Doherty
H03 - BASIC ELECTRONIC CIRCUITRY
Information
Patent Grant
Mask layout for sidefed RF power amplifier
Patent number
6,448,858
Issue date
Sep 10, 2002
International Business Machines Corporation
David R. Helms
H03 - BASIC ELECTRONIC CIRCUITRY
Information
Patent Grant
Active bias network circuit for radio frequency amplifier
Patent number
6,373,339
Issue date
Apr 16, 2002
International Business Machines Corporation
Phillip Antognetti
G05 - CONTROLLING REGULATING
Information
Patent Grant
Active bias network circuit for radio frequency amplifier
Patent number
6,259,324
Issue date
Jul 10, 2001
International Business Machines Corporation
Phillip Antognetti
G05 - CONTROLLING REGULATING
Patents Applications
last 30 patents
Information
Patent Application
APPARATUS AND METHOD FOR SELF BIAS IN GALLIUM NITRIDE (GaN) AMPLIFIERS
Publication number
20160308498
Publication date
Oct 20, 2016
Lockheed Martin Corporation
David R. Helms
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Application
SiGe differential cascode amplifier with miller effect resonator
Publication number
20060250184
Publication date
Nov 9, 2006
M/A Com, Inc.
David Richard Helms
H03 - BASIC ELECTRONIC CIRCUITRY
Information
Patent Application
INTEGRATED POWER AMPLIFIER CIRCUIT
Publication number
20040263248
Publication date
Dec 30, 2004
Mark Doherty
H03 - BASIC ELECTRONIC CIRCUITRY
Information
Patent Application
Integrated power amplifier circuit
Publication number
20040263247
Publication date
Dec 30, 2004
Mark Doherty
H03 - BASIC ELECTRONIC CIRCUITRY
Information
Patent Application
Active bias network circuit for radio frequency amplifier
Publication number
20010054934
Publication date
Dec 27, 2001
International Business Machines Corporation
Phillip Antognetti
G05 - CONTROLLING REGULATING