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United States of America Patent

PATENT NO 9798903
SERIAL NO

15298126

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Abstract

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An identifier made using a silicon film. The silicon film has a varying optical index of refraction. The varying optical index of refraction reflects one or more spectral peaks when illuminated with light. The one or more spectral peaks includes a reference peak. The silicon film is fragmented and then oxidized.

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Patent Owner(s)

Patent OwnerAddress
OPSEC SECURITY INC1857 COLONIAL VILLAGE LANE LANCASTER PA 17601

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Learmonth, Timothy Berkeley, US 31 124
Zhou, Ting Orinda, US 138 747

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