Granted Patent
Utility
US 6,348,201 · App. 09/084,394
External composition for skin comprising sphingoglycolipid
Inventors:
Katsumi Murata, Takashi Nozawa, Hisako Hara, Michiki Asai, Sachio Wakayama
Patented Case
View Patent ↗
Granted: Feb 19, 2002
Filed: May 27, 1998
Inventors
Katsumi Murata
Takashi Nozawa
Hisako Hara
Michiki Asai
Sachio Wakayama
Assignee (at issue)
KIBUN FOOD CHEMIFA 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.