Granted Patent
Utility
US 6,777,213 · App. 10/640,239
Isolation of carboxylic acids from fermentation broth
Inventor:
Michael D. Staley
Patented Case
View Patent ↗
Granted: Aug 17, 2004
Filed: Aug 13, 2003
Inventor
Michael D. Staley
Assignee (at issue)
Cognis Corporation
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.