Granted Patent
Utility
US 6,677,347 · App. 10/165,443
Sulfonamido ether substituted imidazoquinolines
Inventors:
Stephen L. Crooks, George W. Griesgraber, Philip D. Heppner, Bryon A. Merrill, Ralph R. Roberts, Ai-Ping Wei
Patented Case
View Patent ↗
Granted: Jan 13, 2004
Filed: Jun 7, 2002
Inventors
Stephen L. Crooks
George W. Griesgraber
Philip D. Heppner
Bryon A. Merrill
Ralph R. Roberts
Ai-Ping Wei
Assignee (at issue)
3M INNOVATIVE PROPERTIES COMPANY
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.