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John L. CHUMA
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Westborough, MA, US
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last 30 patents
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Patent Grant
Three dimensional display apparatus
Patent number
10,969,604
Issue date
Apr 6, 2021
E Ink Corporation
Stephen J. Telfer
G02 - OPTICS
Patents Applications
last 30 patents
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Patent Application
PRESSURE-SENSITIVE WRITING MEDIA COMPRISING ELECTROPHORETIC MATERIALS
Publication number
20200174336
Publication date
Jun 4, 2020
E INK CORPORATION
John L. CHUMA
G02 - OPTICS
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Patent Application
THREE DIMENSIONAL DISPLAY APPARATUS
Publication number
20200096779
Publication date
Mar 26, 2020
E INK CORPORATION
Stephen J. TELFER
G09 - EDUCATION CRYPTOGRAPHY DISPLAY ADVERTISING SEALS