Granted Patent
Utility
US 6,733,559 · App. 09/647,108
Method of reducing the availability of heavy metals in plants and the use of cross linked poly(meth)acrylates in said method
Inventors:
Aloys Hüttermann, Moitoba Zomorrodi
Patented Case
View Patent ↗
Granted: May 11, 2004
Filed: Jan 22, 2001
Inventors
Aloys Hüttermann
Moitoba Zomorrodi
Assignee (at issue)
Stockhausen GmbH
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.