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, 2009
Filed:
May. 17, 2006
Applicants:
Anastasia Alekseeva, Moscow, RU;
Kirill Kovnir, Dresden, DE;
Pavel Chizhov, Moscow, RU;
Michael Baitinger, Dresden, DE;
Yuri Grin, Dresden, DE;
Inventors:
Anastasia Alekseeva, Moscow, RU;
Kirill Kovnir, Dresden, DE;
Pavel Chizhov, Moscow, RU;
Michael Baitinger, Dresden, DE;
Yuri Grin, Dresden, DE;
Assignee:
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B01D 53/32 (2006.01);
U.S. Cl.
CPC ...
Abstract
The present invention relates to a purification method for removing impurities containing oxygen from materials, especially boron, by hydrogen-based plasma treatment. The present procedure allows for efficient removal of oxygen while avoiding a thermal treatment that would substantially change the structure of the treated material, or a treatment leaving a reducing agent within the treated material.