Granted Patent
Utility
US 6,458,981 · App. 09/686,046
Composition and method for preparing amino acid chelate hydroxides free of interfering ions
Inventors:
Stephen D. Ashmead, David C. Wheelwright, Clayton Ericson, Mark Pedersen
Patented Case
View Patent ↗
Granted: Oct 1, 2002
Filed: Oct 11, 2000
Inventors
Stephen D. Ashmead
David C. Wheelwright
Clayton Ericson
Mark Pedersen
Assignee (at issue)
Albion International, 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.