Granted Patent
Utility
US 6,733,674 · App. 10/347,891
Method of dewatering sludge using enzymes
Inventors:
Jawed M. Sarkar, Jitendra Shah, Manian Ramesh
Patented Case
View Patent ↗
Granted: May 11, 2004
Filed: Jan 22, 2003
Inventors
Jawed M. Sarkar
Jitendra Shah
Manian Ramesh
Assignee (at issue)
Ondeo Nalco 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.