Granted Patent
Utility
US 5,872,287 · App. 08/658,254
Amphipathic compound having succinic acid skeleton
Inventors:
Toshihiko Takaki, Masaru Tanabe, Hiroshi Itoh, Masayuki Yanagi, Shoko Oyanagi, Hiroyoshi Watanabe, Atsushi Utsunomiya, Yasuko Ono, Masanori Tsuchihashi
Patented Case
View Patent ↗
Granted: Feb 16, 1999
Filed: Jun 4, 1996
Inventors
Toshihiko Takaki
Masaru Tanabe
Hiroshi Itoh
Masayuki Yanagi
Shoko Oyanagi
Hiroyoshi Watanabe
Atsushi Utsunomiya
Yasuko Ono
Masanori Tsuchihashi
Assignee (at issue)
MITSUI CHEMICALS, INC.
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.