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Thomas F. Johnston
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Auburn, CA, US
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last 30 patents
Information
Patent Grant
Apparatus for measuring the mode quality of a laser beam
Patent number
5,267,012
Issue date
Nov 30, 1993
Coherent, Inc.
Michael W. Sasnett
G01 - MEASURING TESTING
Information
Patent Grant
Apparatus for measuring the mode quality of a laser beam
Patent number
5,214,485
Issue date
May 25, 1993
Coherent, Inc.
Michael W. Sasnett
G01 - MEASURING TESTING
Information
Patent Grant
Laser resonators employing diffractive optical elements
Patent number
5,151,917
Issue date
Sep 29, 1992
Coherent, Inc.
Bruce Perilloux
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Apparatus for measuring the mode quality of a laser beam
Patent number
5,100,231
Issue date
Mar 31, 1992
Coherent, Inc.
Michael W. Sasnett
G01 - MEASURING TESTING
Information
Patent Grant
Apparatus for measuring the mode quality of a laser beam
Patent number
5,078,491
Issue date
Jan 7, 1992
Coherent, Inc.
Thomas F. Johnston
G01 - MEASURING TESTING
Information
Patent Grant
Apparatus for measuring the mode quality of a laser beam
Patent number
5,069,527
Issue date
Dec 3, 1991
Coherent, Inc.
Thomas F. Johnston
B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information
Patent Grant
Apparatus for measuring the mode quality of a laser beam
Patent number
5,064,284
Issue date
Nov 12, 1991
Coherent, Inc.
Thomas F. Johnston
G01 - MEASURING TESTING
Information
Patent Grant
Scannable laser with integral wavemeter
Patent number
4,864,578
Issue date
Sep 5, 1989
Coherent, Inc.
William P. Proffitt
G01 - MEASURING TESTING
Information
Patent Grant
Dye laser with rotating wedge alignment servo
Patent number
4,514,849
Issue date
Apr 30, 1985
Coherent, Inc.
Kenneth G. Witte
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Broadband optical diode for a ring laser
Patent number
4,272,158
Issue date
Jun 9, 1981
Coherent, Inc.
Thomas F. Johnston
G02 - OPTICS
Information
Patent Grant
Vertex-mounted tipping Brewster plate for a ring laser
Patent number
4,268,800
Issue date
May 19, 1981
Coherent, Inc.
Thomas F. Johnston
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Method and apparatus for automatically reacquiring a predetermined...
Patent number
4,150,342
Issue date
Apr 17, 1979
Coherent, Inc.
Thomas F. Johnston
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Adjustable etalon laser mode selector and method of adjustment
Patent number
4,097,818
Issue date
Jun 27, 1978
Coherent, Inc.
Nubar Sahag Manoukian
G02 - OPTICS