Granted Patent
Utility
US 6,143,532 · App. 08/880,476
Process for recovering carboxylic acids from a fermentation broth
Inventors:
J. Douglas Wenzel, Kevin W. Anderson
Patented Case
View Patent ↗
Granted: Nov 7, 2000
Filed: Jun 23, 1997
Inventors
J. Douglas Wenzel
Kevin W. Anderson
Assignee (at issue)
Henkel Limited
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.