Granted Patent
Utility
US 6,503,536 · App. 09/214,858
Granulates of hexahydropyrazine derivatives which can be administered orally
Inventors:
Jochen Kalbe, Terence Hopkins
Patented Case
View Patent ↗
Granted: Jan 7, 2003
Filed: Jan 13, 1999
Inventors
Jochen Kalbe
Terence Hopkins
Assignee (at issue)
Bayer Aktiengesellschaft
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.