Choi; Yeonuk

Patent Applications and Registrations

Patent applications and USPTO patent grants for Choi; Yeonuk.The latest application filed is for "method for pre-treatment of gold-bearing oxide ores".

Company Profile

3.19.19

Choi; Yeonuk - Oakville CA
Choi; Yeonuk - Toronto CA
Choi; Yeonuk - Pointe-Claire CA

*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
Method for pre-treatment of gold-bearing oxide ores Grant 11,401,580 - Choi , et al. August 2, 2	2022-08-02
Method For Pre-treatment Of Gold-bearing Oxide Ores App 20200165702 - Choi; Yeonuk ; et al.	2020-05-28
Method for pre-treatment of gold-bearing oxide ores Grant 10,597,752 - Choi , et al.	2020-03-24
Co-current and counter current resin-in-leach in gold leaching processes Grant 10,415,116 - Choi , et al. Sept	2019-09-17
Method for pre-treatment of gold-bearing oxide ores Grant 10,161,016 - Choi , et al. Dec	2018-12-25
Method for arsenic oxidation and removal from process and waste solutions Grant 10,077,487 - Choi , et al. September 18, 2	2018-09-18
Method For Pre-treatment Of Gold-bearing Oxide Ores App 20180030572 - Choi; Yeonuk ; et al.	2018-02-01
Co-Current and Counter Current Resin-In-Leach in Gold Leaching Processes App 20180030571 - CHOI; Yeonuk ; et al.	2018-02-01
Use of cationic surfactants in the cyanidation of refractory carbonaceous ores for recovery of metals Grant 9,803,260 - Zhou , et al. October 31, 2	2017-10-31
Co-current and counter current resin-in-leach in gold leaching processes Grant 9,790,572 - Choi , et al. October 17, 2	2017-10-17
Use of Cationic Surfactants In the Cyanidation of Refractory Carbonaceous Ores for Recovery of Metals App 20160024613 - Zhou; Qiong ; et al.	2016-01-28
Method for recovering precious metals and copper from leach solutions Grant 9,051,625 - Choi , et al. June 9, 2	2015-06-09
Method For Arsenic Oxidation And Removal From Process And Waste Solutions App 20140356261 - Choi; Yeonuk ; et al.	2014-12-04
Method For Pre-treatment Of Gold-bearing Oxide Ores App 20140356225 - Choi; Yeonuk ; et al.	2014-12-04
Production of zinc sulphate concentrates from a dilute zinc sulphate solution Grant 8,900,535 - Choi December 2, 2	2014-12-02
Co-current and counter current resin-in-leach in gold leaching processes Grant 8,715,389 - Choi , et al. May 6, 2	2014-05-06
Co-Current and Counter Current Resin-In-Leach in Gold Leaching Processes App 20140035207 - CHOI; Yeonuk ; et al.	2014-02-06
Method For Recovering Precious Metals And Copper From Leach Solutions App 20130091990 - Choi; Yeonuk ; et al.	2013-04-18
Process for controlling acid in sulfide pressure oxidation processes Grant 8,262,770 - Hillier , et al. September 11, 2	2012-09-11
Process for reduced alkali consumption in the recovery of silver Grant 8,252,254 - Choi , et al. August 28, 2	2012-08-28
Co-current And Counter Current Resin-in-leach In Gold Leaching Processes App 20120183433 - Choi; Yeonuk ; et al.	2012-07-19
Production Of Zinc Sulphate Concentrates From A Dilute Zinc Sulphate Solution App 20110165059 - Choi; Yeonuk	2011-07-07
Process for mercury control during pressure oxidation Grant 7,918,919 - Hillier , et al. April 5, 2	2011-04-05
Selective precipitation of metal sulfides Grant 7,862,786 - Choi , et al. January 4, 2	2011-01-04
Thiosulfate generation in situ in precious metal recovery Grant 7,572,317 - Choi , et al. August 11, 2	2009-08-11
Microbial Pre-treatment Of Double Refractory Gold Ores App 20090158893 - Yen; Wan-Tai ; et al.	2009-06-25
Process For Controlling Acid In Sulfide Pressure Oxidation Processes App 20090071296 - Hillier; Daniel ; et al.	2009-03-19
Process For Mercury Control During Pressure Oxidation App 20090074608 - Hillier; Daniel ; et al.	2009-03-19
Selective Precipitation Of Metal Sulfides App 20080274026 - Choi; Yeonuk ; et al.	2008-11-06
Process For Reduced Alkali Consumption In The Recovery Of Silver App 20070292326 - Choi; Yeonuk ; et al.	2007-12-20
Thiosulfate Generation In Situ In Precious Metal Recovery App 20070137437 - Choi; Yeonuk ; et al.	2007-06-21
Production of zinc oxide from acid soluble ore using precipitation method Grant 6,726,889 - Choi , et al. April 27, 2	2004-04-27
Production of zinc oxide from acid soluble ore using precipitation method App 20030031611 - Choi, Yeonuk ; et al.	2003-02-13

uspto.report is an independent third-party trademark research tool that is not affiliated, endorsed, or sponsored by the United States Patent and Trademark Office (USPTO) or any other governmental organization. The information provided by uspto.report is based on publicly available data at the time of writing and is intended for informational purposes only.

While we strive to provide accurate and up-to-date information, we do not guarantee the accuracy, completeness, reliability, or suitability of the information displayed on this site. The use of this site is at your own risk. Any reliance you place on such information is therefore strictly at your own risk.

All official trademark data, including owner information, should be verified by visiting the official USPTO website at www.uspto.gov. This site is not intended to replace professional legal advice and should not be used as a substitute for consulting with a legal professional who is knowledgeable about trademark law.