Granted Patent
Utility
US 6,479,556 · App. 09/931,764
Ophthalmic compositions for soft contact lens, method of enhancing wettability of soft contact lens and method of inhibiting terpenoid adsorption
Inventors:
Koji Doi, Hisayuki Nakayama, Takuya Nakajima, Noriko SAKAI
Patented Case
View Patent ↗
Granted: Nov 12, 2002
Filed: Aug 20, 2001
Inventors
Koji Doi
Hisayuki Nakayama
Takuya Nakajima
Noriko SAKAI
Assignee (at issue)
SENJU PHARMACEUTICAL 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.