Granted Patent
Utility
US 6,413,494 · App. 09/318,579
Composition and pharmaceutical dosage form for colonic drug delivery using polysaccharides
Inventors:
Seung Seo LEE, Chang Baeg Lim, Chaul-Min Pai, Sujung Lee, In Suk Park, Moon Gun Seo, Heenam Park
Patented Case
View Patent ↗
Granted: Jul 2, 2002
Filed: May 25, 1999
Inventors
Seung Seo LEE
Chang Baeg Lim
Chaul-Min Pai
Sujung Lee
In Suk Park
Moon Gun Seo
Heenam Park
Assignee (at issue)
SAMYANG 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.