Granted Patent
Utility
US 5,136,031 · App. 07/474,314
Chlorination of sugars
Inventors:
Riaz Khan, George H. Sankey, Philip J. Simpson, Nicholas M. Vernon
Patented Case
View Patent ↗
Granted: Aug 4, 1992
Filed: Jul 9, 1990
Inventors
Riaz Khan
George H. Sankey
Philip J. Simpson
Nicholas M. Vernon
Assignee (at issue)
Tate & Lyle Public Limited Company
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.