Granted Patent
Utility
US 5,620,987 · App. 08/398,478
Amino acid derivatives
Inventors:
Balraj K. Handa, Peter J. Machin, Joseph Armstrong Martin, Sally Redshaw, Gareth J. Thomas
Patented Case
View Patent ↗
Granted: Apr 15, 1997
Filed: Apr 10, 1995
Inventors
Balraj K. Handa
Peter J. Machin
Joseph Armstrong Martin
Sally Redshaw
Gareth J. Thomas
Assignee (at issue)
HOFFMANN-LA ROCHE INC.
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.