Granted Patent
Utility
US 5,475,138 · App. 08/271,619
Method preparing amino acid-derived diaminopropanols
Inventors:
Biman B. Pal, Siya Ram, Bing Cai, Yesh P. Sachdeva, Jaechul Shim, Salah A. Zahr, Emile Al-Farhan, Richard L. Gabriel
Patented Case
View Patent ↗
Granted: Dec 12, 1995
Filed: Jul 7, 1994
Inventors
Biman B. Pal
Siya Ram
Bing Cai
Yesh P. Sachdeva
Jaechul Shim
Salah A. Zahr
Emile Al-Farhan
Richard L. Gabriel
Assignee (at issue)
Pharm-Eco Laboratories, 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.