US Patent
Patent No. US 08338642
Published on Dec 25, 2012
Application No. 12/711679
Filed on Feb 24, 2010
Priority Date -
Inventor/Applicants
2Kwok, David W. K. - Vancouver, CA
Stoynov, Nikolay Mintchev - Vancouver, CA
Classification
International:
C07C 63/36
National:3
562/590
562/582;
514/502;
Field of Search
Non/e
Examiner
Valenrod, Yevegeny