Donald A. Frederick

Person

Simi Valley, CA, US

People

Patents Grantslast 30 patents

Information Patent Grant
Repairable fiber optic hydrophone assembly
- Patent number 7,227,814
- Issue date Jun 5, 2007
- L-3 Communications Corporation
- Donald A. Frederick
- G01 - MEASURING TESTING
Information Patent Grant
Architecture for large optical fiber array using standard 1×2 couplers
- Patent number 7,054,521
- Issue date May 30, 2006
- Northrop Grumman Corporation
- Craig W. Hodgson
- G01 - MEASURING TESTING
Information Patent Grant
Architecture for large optical fiber array using standard 1&#x000D7...
- Patent number 6,768,829
- Issue date Jul 27, 2004
- Litton Systems, Inc.
- Craig W. Hodgson
- G01 - MEASURING TESTING
Information Patent Grant
Pressure vessel
- Patent number 6,744,965
- Issue date Jun 1, 2004
- Litton Systems, Inc.
- Akbar Arab-Sadeghabadi
- G01 - MEASURING TESTING
Information Patent Grant
Acoustic sensing system for downhole seismic applications utilizing...
- Patent number 6,728,165
- Issue date Apr 27, 2004
- Litton Systems, Inc.
- John A. Roscigno
- G01 - MEASURING TESTING
Information Patent Grant
Long distance, all-optical telemetry for fiber optic sensor using r...
- Patent number 6,507,679
- Issue date Jan 14, 2003
- Litton Systems, Inc.
- Craig W. Hodgson
- G08 - SIGNALLING
Information Patent Grant
In-line fiber-optic polarizer
- Patent number 6,434,283
- Issue date Aug 13, 2002
- Litton Systems, Inc.
- Donald Adam Frederick
- F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
Information Patent Grant
Acoustic sensing system for downhole seismic applications utilizing...
- Patent number 6,288,975
- Issue date Sep 11, 2001
- Litton Systems, Inc.
- Donald A. Frederick
- G01 - MEASURING TESTING
Information Patent Grant
Acoustic sensing system for downhole seismic applications utilizing...
- Patent number 6,269,198
- Issue date Jul 31, 2001
- Litton Systems, Inc.
- Craig W. Hodgson
- G01 - MEASURING TESTING
Information Patent Grant
Architecture for large optical fiber array using standard 1&#x000D7...
- Patent number 6,249,622
- Issue date Jun 19, 2001
- Litton Systems, Inc.
- Craig W. Hodgson
- G01 - MEASURING TESTING
Information Patent Grant
System for splicing sensors into a multiple fiber optical cable
- Patent number 6,104,846
- Issue date Aug 15, 2000
- Litton Systems, Inc.
- Craig W. Hodgson
- G02 - OPTICS
Information Patent Grant
Method of operating a fiber-optic acoustical sensor, apparatus for...
- Patent number 6,072,921
- Issue date Jun 6, 2000
- Litton Systems, Inc.
- Donald Adam Frederick
- G01 - MEASURING TESTING
Information Patent Grant
TDM array of optical non-acoustic pressure sensors
- Patent number 6,038,926
- Issue date Mar 21, 2000
- Donald A. Frederick
- G01 - MEASURING TESTING
Information Patent Grant
Method for determining the phase difference of light waves propagat...
- Patent number 5,995,207
- Issue date Nov 30, 1999
- Litton Systems, Inc.
- David B. Hall
- G01 - MEASURING TESTING
Information Patent Grant
System for multiplexed high resolution measurement of frequency var...
- Patent number 5,867,258
- Issue date Feb 2, 1999
- Litton Systems, Inc.
- Donald A. Frederick
- G01 - MEASURING TESTING
Information Patent Grant
Sensing method and apparatus
- Patent number 5,815,266
- Issue date Sep 29, 1998
- Litton Systems, Inc.
- Samuel N. Fersht
- G01 - MEASURING TESTING
Information Patent Grant
Apparatus and method for detecting rotation rate, Faraday bias and...
- Patent number 5,751,425
- Issue date May 12, 1998
- Litton Systems, Inc.
- Donald A. Frederick
- G01 - MEASURING TESTING
Information Patent Grant
Extended, flexible, spatially weighted fiber optic interferometric...
- Patent number 5,737,278
- Issue date Apr 7, 1998
- Litton Systems, Inc.
- Donald A. Frederick
- G01 - MEASURING TESTING
Information Patent Grant
WDM/FDM fiber optic sensor architecture using WDM tap coupler
- Patent number 5,696,857
- Issue date Dec 9, 1997
- Litton Systems, Inc.
- Donald A. Frederick
- G01 - MEASURING TESTING
Information Patent Grant
Fiber optic hydrophone having rigid mandrel
- Patent number 5,625,724
- Issue date Apr 29, 1997
- Litton Systems, Inc.
- Donald A. Frederick
- G02 - OPTICS
Information Patent Grant
Coherence multiplexed interferometric signal processing system and...
- Patent number 5,555,086
- Issue date Sep 10, 1996
- Litton Systems, Inc.
- Karlheinz vonBieren
- G01 - MEASURING TESTING
Information Patent Grant
Faraday magnet for the reduction of multi-oscillator bias thermal s...
- Patent number 4,969,743
- Issue date Nov 13, 1990
- Litton Systems, Inc.
- Laurence G. Cote
- G02 - OPTICS

Patents Applicationslast 30 patents

Information Patent Application
Repairable fiber optic hydrophone assembly
- Publication number 20060198246
- Publication date Sep 7, 2006
- L3 COMMUNICATIONS CORP.
- Donald A. Frederick
- G01 - MEASURING TESTING
Information Patent Application
Architecture for large optical fiber array using standard 1 x 2 cou...
- Publication number 20040240780
- Publication date Dec 2, 2004
- Craig W. Hodgson
- G01 - MEASURING TESTING
Information Patent Application
Pressure vessel capable of withstanding elevated hydrostatic pressu...
- Publication number 20020064367
- Publication date May 30, 2002
- Akbar Arab-Sadeghabadi
- G01 - MEASURING TESTING
Information Patent Application
IN-LINE FIBER-OPTIC POLARIZER
- Publication number 20010051013
- Publication date Dec 13, 2001
- Donald Adam Frederick
- G01 - MEASURING TESTING
Information Patent Application
Architecture for large optical fiber array using standard 1x2 couplers
- Publication number 20010014192
- Publication date Aug 16, 2001
- Craig W. Hodgson
- G01 - MEASURING TESTING

Donald A. Frederick

Person

Patents Grantslast 30 patents

Repairable fiber optic hydrophone assembly

Architecture for large optical fiber array using standard 1×2 couplers

Architecture for large optical fiber array using standard 1&#x000D7...

Pressure vessel

Acoustic sensing system for downhole seismic applications utilizing...

Long distance, all-optical telemetry for fiber optic sensor using r...

In-line fiber-optic polarizer

Acoustic sensing system for downhole seismic applications utilizing...

Acoustic sensing system for downhole seismic applications utilizing...

Architecture for large optical fiber array using standard 1&#x000D7...

System for splicing sensors into a multiple fiber optical cable

Method of operating a fiber-optic acoustical sensor, apparatus for...

TDM array of optical non-acoustic pressure sensors

Method for determining the phase difference of light waves propagat...

System for multiplexed high resolution measurement of frequency var...

Sensing method and apparatus

Apparatus and method for detecting rotation rate, Faraday bias and...

Extended, flexible, spatially weighted fiber optic interferometric...

WDM/FDM fiber optic sensor architecture using WDM tap coupler

Fiber optic hydrophone having rigid mandrel

Coherence multiplexed interferometric signal processing system and...

Faraday magnet for the reduction of multi-oscillator bias thermal s...

Patents Applicationslast 30 patents

Repairable fiber optic hydrophone assembly

Architecture for large optical fiber array using standard 1 x 2 cou...

Pressure vessel capable of withstanding elevated hydrostatic pressu...

IN-LINE FIBER-OPTIC POLARIZER

Architecture for large optical fiber array using standard 1x2 couplers