Granted Patent
Utility
US 5,556,948 · App. 08/182,832
Phospholipid derivatized with PEG bifunctional linker and liposome containing it
Inventors:
Toshiaki Tagawa, Kaoru Awane, Kazuhiro Nagaike
Patented Case
View Patent ↗
Granted: Sep 17, 1996
Filed: Jan 19, 1994
Inventors
Toshiaki Tagawa
Kaoru Awane
Kazuhiro Nagaike
Assignee (at issue)
MITSUBISHI CHEMICAL CORPORATION
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.