Granted Patent
Utility
US 6,723,791 · App. 10/038,461
Systems for ameliorating aqueous hydrocarbon spills
Inventors:
Glenn R. Rink, James F. Morris, Stephen C. Stelpstra, Robert L. Rosania, Jan R. Hegeman, Peter A. Allen
Patented Case
View Patent ↗
Granted: Apr 20, 2004
Filed: Dec 31, 2001
Inventors
Glenn R. Rink
James F. Morris
Stephen C. Stelpstra
Robert L. Rosania
Jan R. Hegeman
Peter A. Allen
Assignee (at issue)
AbTech Industries, 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.