Granted Patent
Utility
US 5,366,879 · App. 07/992,862
Method of preparing branched cyclodextrin
Inventors:
Sumio Kitahata, Koji Hara, Koki Fujita, Nobuhiro Kuwahara, Hirofumi Nakano
Patented Case
View Patent ↗
Granted: Nov 22, 1994
Filed: Dec 17, 1992
Inventors
Sumio Kitahata
Koji Hara
Koki Fujita
Nobuhiro Kuwahara
Hirofumi Nakano
Assignees (at issue)
Ensuiko Sugar Refining Co., Ltd.
Sumio Kitahata
Hirofumi Nakano
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.