Granted Patent
Utility
US 5,985,913 · App. 09/069,693
Tetracyclic compounds for enhancing biosynthesis of erythropoietin, compositions containing same, and methods of use thereof
Inventors:
Jonathan Gareth Williams, David Renwick Houck, David E. Smith, Daniel Lee Rathbone, David Billington, Bernard Thomas Golding, Eric W. Collington, John Kitchin, Nicholas Rich
Patented Case
View Patent ↗
Granted: Nov 16, 1999
Filed: Apr 29, 1998
Inventors
Jonathan Gareth Williams
David Renwick Houck
David E. Smith
Daniel Lee Rathbone
David Billington
Bernard Thomas Golding
Eric W. Collington
John Kitchin
Nicholas Rich
Assignee (at issue)
OSI Pharmaceuticals, LLC
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.