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John Prohaska
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Millbury, MA, US
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Patents Grants
last 30 patents
Information
Patent Grant
Tunable filter
Patent number
6,650,810
Issue date
Nov 18, 2003
Physical Optics Corporation
Robert A. Lieberman
G01 - MEASURING TESTING
Information
Patent Grant
Temperature compensated fiber grating and method for compensating t...
Patent number
6,240,225
Issue date
May 29, 2001
Lucent Technologies Inc.
John Dennis Prohaska
G02 - OPTICS
Information
Patent Grant
Birefringent fiber grating sensor and detection system
Patent number
6,208,776
Issue date
Mar 27, 2001
Physical Optics Corporation
John D. Prohaska
G02 - OPTICS
Information
Patent Grant
Birefringent fiber grating sensor and detection system
Patent number
6,201,912
Issue date
Mar 13, 2001
Physical Optics Corporation
Lothar U. Kempen
G02 - OPTICS
Information
Patent Grant
Method and system for determining the wavelength of light transmitt...
Patent number
6,052,179
Issue date
Apr 18, 2000
Physical Optics Corporation
John D. Prohaska
G01 - MEASURING TESTING
Information
Patent Grant
Self-referencing interferometric fiber optic sensor system having a...
Patent number
6,014,215
Issue date
Jan 11, 2000
Physical Optics Corporation
Lothar U. Kempen
G01 - MEASURING TESTING
Patents Applications
last 30 patents
Information
Patent Application
Re-configurable wavelength and dispersion selective device
Publication number
20020176658
Publication date
Nov 28, 2002
John Prohaska
G02 - OPTICS