IP Library › Granted Patent US 6,693,204
Granted Patent Utility
US 6,693,204 · App. 10/240,175

Method for purification of cyclic ester

Inventors: Tetsuo Ejiri, Kazuyuki Yamane, Kentaro Otawara
Patented Case View Patent ↗
Granted: Feb 17, 2004 Filed: Sep 30, 2002
Inventors
Tetsuo Ejiri
Kazuyuki Yamane
Kentaro Otawara
Assignee (at issue)
Kureha Kagaku Kogyo K.K.

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Quick Facts
Patent No.
US 6,693,204
App. No.
10/240,175
Filed
2002-09-30
Granted
2004-02-17
Kind
B2