Granted Patent
Utility
US 5,859,149 · App. 08/796,642
Production of solid polyaspartate salt
Inventor:
David A. Martin
Patented Case
View Patent ↗
Granted: Jan 12, 1999
Filed: Feb 7, 1997
Inventor
David A. Martin
Assignee (at issue)
Soliton, 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.