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:
Mar. 14, 2017
Filed:
Jun. 12, 2007
Alexander Stuck, Wettingen, CH;
Harald Walter, Horgen, CH;
Marc Schnieper, Onex-Genéve, CH;
Jürgen Söchtig, Wettswil, CH;
Christian Zschokke, Basel, CH;
Alexander Stuck, Wettingen, CH;
Harald Walter, Horgen, CH;
Marc Schnieper, Onex-Genéve, CH;
Jürgen Söchtig, Wettswil, CH;
Christian Zschokke, Basel, CH;
CSEM CENTRE SUISSE D'ELECTRONIQUE ET DE MICROTECHNIQUE SA, Neuchatel, CH;
Abstract
A tablet for pharmaceutical use has on at least one part of its surface a diffractive microstructure which generates diffraction effects which can be perceived in the visible spectral range and which serve as visual safety feature. The tablet includes a plurality of individual powder particles, where the diffractive microstructures are impressed into the surface of the individual powder particles. A compression tool to produce such tablets has on one pressing surface of the compression tool micro-structures, where the microstructures have dimensions which are smaller than the dimensions of the individual crystallites of the material of the pressing surface of the compression tool. The micro-structures of the compression tool can be produced for example by ion etching or by imprinting.