IP Library Granted Patent US 5,811,566
Granted Patent Utility
US 5,811,566 · App. 08/503,211

Process for purifying a polyether

Inventors: Takashi Watabe, Hiroshi Hatano, Kazunori Chiba, Takao Doi, Toru Ueno, Etsuko Sakai, Minoru Yamada, Shinya Saiki, Hirotsugu Yamamoto, Toshihiko Higuchi
Patented Case View Patent ↗
Granted: Sep 22, 1998 Filed: Jul 17, 1995
Inventors
Takashi Watabe
Hiroshi Hatano
Kazunori Chiba
Takao Doi
Toru Ueno
Etsuko Sakai
Minoru Yamada
Shinya Saiki
Hirotsugu Yamamoto
Toshihiko Higuchi
Assignee (at issue)
ASAHI GLASS CO., LTD.

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Quick Facts
Patent No.
US 5,811,566
App. No.
08/503,211
Filed
1995-07-17
Granted
1998-09-22
Kind
A