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:
Aug. 24, 2004
Filed:
Aug. 14, 2002
Applicant:
Inventors:
Sudhir Solomon Bhagat, Tulsa, OK (US);
Dayal T. Meshri, Tulsa, OK (US);
Sanjay D. Meshri, Tulsa, OK (US);
Michale Shane Petty, Claremore, OK (US);
Assignee:
Advance Research Chemicals, Inc., Catoosa, OK (US);
Primary Examiner:
Int. Cl.
CPC ...
C01G 1/704 ; C01B 9/08 ;
U.S. Cl.
CPC ...
C01G 1/704 ; C01B 9/08 ;
Abstract
A method of producing high purity germanium tetrafluoride comprising the step of flowing a mixture of inert gas and fluorine gas through a reactor chamber preferably containing germanium powder. The reactor effluent stream is conducted through at least one product trap effective for condensing and retaining at least a portion of the germanium tetrafluoride product. The product is preferably then purified by repeatedly subliming the product as necessary to remove volatile impurities.