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Igor Loshak
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Cambridge, MA, US
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last 30 patents
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Patent Grant
Optical lens blank with polarizer aligned between plastic birefring...
Patent number
5,805,336
Issue date
Sep 8, 1998
Polaroid Corporation
William H. Dalzell
B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
Information
Patent Grant
Laminar light-polarizing lens blank for producing prescription lens
Patent number
5,751,481
Issue date
May 12, 1998
Polaroid Corporation
William H. Dalzell
B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
Information
Patent Grant
Shaped plastic light-polarizing lens and method of making same
Patent number
5,434,707
Issue date
Jul 18, 1995
Polaroid Corporation
William H. Dalzell
B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL