The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jul. 27, 2021
Filed:
Dec. 09, 2015
Peter Reischig, Leicester, GB;
Peter Reischig, Leicester, GB;
Other;
Abstract
The fingerprint comprises a three-dimensional map of internal imperfections present in a crystal within the gemstone (), and may also comprise further information about the gemstone (). The method comprises scanning the gemstone in an imaging apparatus by recording diffraction and/or extinction images according to a scanning strategy, and generating a fingerprint from the recorded diffraction and/or extinction images. The imaging apparatus comprises a sample holder (), a sample stage (), a detector (), an x-ray source (), wherein the sample holder () is movable relative to the x-ray source () and the detector (). The fingerprint is used for the identification of gemstones, and/or for tracking and/or processing of gemstones in a supply chain.