US Patent
Patent No. US 08609896
Published on Dec 17, 2013
Application No. 13/672900
Filed on Nov 9, 2012
Priority Date -
Inventor/Applicants
2Kwok, David W. K. - Vancouver, CA
Stoynov, Nikolay Mintchev - Vancouver, CA
Classification
International:
C07C 63/36
National:2
562/590
562/582;
Field of Search
Non/e
Examiner
Valenrod, Yevegeny