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:
Jan. 04, 2022
Filed:
Mar. 17, 2017
Applicant:
Cycladex Inc., Winter Park, FL (US);
Inventors:
Roger Bruce Pettman, Winter Park, FL (US);
Dale F. Arnold, The Woodlands, TX (US);
Assignee:
CYCLADEX INC., Winter Park, FL (US);
Primary Examiner:
Int. Cl.
CPC ...
C22B 11/00 (2006.01); C22B 3/44 (2006.01); C22B 59/00 (2006.01);
U.S. Cl.
CPC ...
C22B 11/04 (2013.01); C22B 3/44 (2013.01); C22B 59/00 (2013.01); Y02P 10/20 (2015.11);
Abstract
This invention relates to methods for the recovery of precious metals such as gold, silver, platinum, palladium and rare earths from precious metal-bearing materials. In particular, a method of purifying precious metal from a precious metal-bearing material comprising the steps