Bah Holdings LLC

Zortag Inc.

Michael Gouzman

Satya Prakash Sharma

Michael Tkachuk

Dmitri N Gavrilov

Alexander Shevchenko

During manufacture and packaging of items whose authenticity is to be verified, the items are marked with individual item characteristics, and placed in a package. A first item authentication code is determined from the individual item characteristics of the marked items. A first package authentication code is generated, and the package is marked with the first package authentication code. During item authentication in the field, an image of the package and the marked items is captured, a second package authentication code and the individual item characteristics are extracted from the captured image, the extracted individual item characteristics are processed to generate a second item authentication code, and the authenticity of the marked items is verified by matching the first and second package authentication codes and by matching the first and second item authentication codes.

Method of and system for verifying authenticity of packaged items

A gas or particulate sensor is provided for the detection of at least two target gases and/or particulates. The sensor comprises: a chamber for containing a gas sample under test; a first optical measurement channel configured for the detection of a first target gas or particulate within the gas sample, and a second optical measurement channel configured for the detection of a second target gas or particulate within the gas sample, each optical measurement channel comprising a respective optopair which comprises a radiation source adapted to emit radiation and a radiation detector adapted to output a signal in response to detected radiation; and focusing optics able to form an image of an object. At least the first optical measurement channel is configured such that the radiation detector of the respective optopair receives via the focusing optics an image of the corresponding radiation source, whereby the radiation received from the radiation source by the radiation detector is modified by the first target gas or particulate present in the gas sample such that the output signal from the radiation detector provides information as to the presence of the first target gas or particulate in the gas sample.

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Centereach, NY, United States of America

Michael Gouzman