Granted Patent
Utility
US 5,364,451 · App. 08/073,258
Phytoremediation of metals
Inventors:
Ilya Raskin, Nanda P. B. A. Kumar, Slavik Douchenkov
Patented Case
View Patent ↗
Granted: Nov 15, 1994
Filed: Jun 4, 1993
Inventors
Ilya Raskin
Nanda P. B. A. Kumar
Slavik Douchenkov
Assignee (at issue)
Phytotech 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.