Granted Patent
Utility
US 6,689,894 · App. 10/358,654
Process for preparing fatty acid zinc salts
Inventor:
Bing-Lin Chen
Patented Case
View Patent ↗
Granted: Feb 10, 2004
Filed: Feb 5, 2003
Inventor
Bing-Lin Chen
Assignee (at issue)
Crompton 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.