Granted Patent
Utility
US 6,656,871 · App. 09/915,634
Method for production of catalyst
Inventors:
Shigeyoshi Taniguchi, Katsuji Tanihira, Makoto Horiuchi, Ryugo Kakimi
Patented Case
View Patent ↗
Granted: Dec 2, 2003
Filed: Jul 26, 2001
Inventors
Shigeyoshi Taniguchi
Katsuji Tanihira
Makoto Horiuchi
Ryugo Kakimi
Assignees (at issue)
ICT Co., Ltd.
International Catalyst Technology, Inc.
NIPPON SHOKUBAI CO., LTD.
This patent predates the USPTO's electronic file wrapper — prosecution documents from this era exist only in the Patent Office's paper records. A certified copy of the file history can be ordered from the USPTO's paper archives.