Wan; Rong Yu

Patent Applications and Registrations

Patent applications and USPTO patent grants for Wan; Rong Yu.The latest application filed is for "precious metal recovery using thiocyanate lixiviant".

Company Profile

0.8.5

Wan; Rong Yu - Highlands Ranch CO
Wan; Rong-Yu - Salt Lake City UT

*profile and listings may contain filings by different individuals or companies with the same name. Review application materials to confirm ownership/assignment.

Patent Activity

Patent	Date
Precious metal recovery using thiocyanate lixiviant Grant 7,947,108 - Wan , et al. May 24, 2	2011-05-24
Precious Metal Recovery Using Thiocyanate Lixiviant App 20090288521 - Wan; Rong Yu ; et al.	2009-11-26
Precious metal recovery using thiocyanate lixiviant Grant 7,559,973 - Wan , et al. July 14, 2	2009-07-14
Precious metal recovery using thiocyanate lixiviant Grant 7,537,640 - Wan , et al. May 26, 2	2009-05-26
Precious Metal Recovery Using Thiocyanate Lixiviant App 20080066578 - Wan; Rong Yu ; et al.	2008-03-20
Precious Metal Recovery Using Thiocyanate Lixiviant App 20080066577 - Wan; Rong Yu ; et al.	2008-03-20
Precious metal recovery using thiocyanate lixiviant Grant 7,285,256 - Wan , et al. October 23, 2	2007-10-23
Precious metal recovery using thiocyanate lixiviant App 20040197249 - Wan, Rong Yu ; et al.	2004-10-07
Recovery Of Precious Metals From Thiosulfate Solutions App 20030015065 - Wan, Rong Yu	2003-01-23
Recovery of precious metals from thiosulfate solutions Grant 6,500,231 - Wan December 31, 2	2002-12-31
Hydrometallurgical process for the recovery of precious metal values from precious metal ores with thiosulfate lixiviant Grant 5,354,359 - Wan , et al. October 11, 1	1994-10-11
Treatment of refractory carbonaceous sulfide ores for gold recovery Grant 4,923,510 - Ramadorai , et al. May 8, 1	1990-05-08
Treatment of refractory carbonaceous and sulfidic ores or concentrates for precious metal recovery Grant 4,902,345 - Ball , et al. February 20, 1	1990-02-20

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