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:
Nov. 03, 1998
Filed:
Sep. 20, 1996
Nicolaas Petrus Willard, Eindhoven, NL;
Pieter K De Bokx, Eindhoven, NL;
U.S. Philips Corporation, New York, NY (US);
Abstract
For TXRF (Total Reflection XRF) or GEXRF (Grazing Emission XRF) a very flat sample surface and a suitably defined region in which the sample material is present are often required. Both requirements can be satisfied by means of a (preferably synthetic) sample carrier on which a first region which has a small liquid contact angle is surrounded by a second region having a large contact angle. When applied in the first region, a droplet of solvent containing the sample material will completely wet said region, whereas the second region will not be wetted. As the solvent evaporates, the boundary of the droplet does not retreat but the first region remains fully wetted, resulting in uniform coverage of this region by sample material and also in a suitably defined sample spot.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile