Frederick; Donald A.

Patent Applications and Registrations

Patent applications and USPTO patent grants for Frederick; Donald A..The latest application filed is for "repairable fiber optic hydrophone assembly".

Company Profile

0.13.4

Frederick; Donald A. - Simi Valley CA
Frederick; Donald A. - Woodland Hills CA
Frederick; Donald A. - Canoga Park CA

*profile and listings may contain filings by different individuals or companies with the same name. Review application materials to confirm ownership/assignment.

Patent Activity

Patent	Date
Repairable fiber optic hydrophone assembly Grant 7,227,814 - Frederick , et al. June 5, 2	2007-06-05
Repairable fiber optic hydrophone assembly App 20060198246 - Frederick; Donald A. ; et al.	2006-09-07
Architecture for large optical fiber array using standard 1.times.2 couplers Grant 7,054,521 - Hodgson , et al. May 30, 2	2006-05-30
Architecture for large optical fiber array using standard 1 x 2 couplers App 20040240780 - Hodgson, Craig W. ; et al.	2004-12-02
Architecture for large optical fiber array using standard 1.times.2 couplers Grant 6,768,829 - Hodgson , et al. July 27, 2	2004-07-27
Pressure vessel Grant 6,744,965 - Arab-Sadeghabadi , et al. June 1, 2	2004-06-01
Acoustic sensing system for downhole seismic applications utilizing an array of fiber optic sensors Grant 6,728,165 - Roscigno , et al. April 27, 2	2004-04-27
Pressure vessel capable of withstanding elevated hydrostatic pressures, and elevated temperature App 20020064367 - Arab-Sadeghabadi, Akbar ; et al.	2002-05-30
Acoustic sensing system for downhole seismic applications utilizing an array of fiber optic sensors Grant 6,288,975 - Frederick , et al. September 11, 2	2001-09-11
Architecture for large optical fiber array using standard 1x2 couplers App 20010014192 - Hodgson, Craig W. ; et al.	2001-08-16
Acoustic sensing system for downhole seismic applications utilizing an array of fiber optic sensors Grant 6,269,198 - Hodgson , et al. July 31, 2	2001-07-31
Architecture for large optical fiber array using standard 1.times.2 couplers Grant 6,249,622 - Hodgson , et al. June 19, 2	2001-06-19
System for splicing sensors into a multiple fiber optical cable Grant 6,104,846 - Hodgson , et al. August 15, 2	2000-08-15
System for multiplexed high resolution measurement of frequency variations in multimode fiber laser acoustic sensors Grant 5,867,258 - Frederick , et al. February 2, 1	1999-02-02
Extended, flexible, spatially weighted fiber optic interferometric hydrophone Grant 5,737,278 - Frederick , et al. April 7, 1	1998-04-07
WDM/FDM fiber optic sensor architecture using WDM tap coupler Grant 5,696,857 - Frederick December 9, 1	1997-12-09
Coherence multiplexed interferometric signal processing system and method Grant 5,555,086 - vonBieren , et al. September 10, 1	1996-09-10

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