Granted Patent
Utility
US 5,284,844 · App. 07/411,335
Biocides for protecting industrial materials and water systems
Inventors:
Joachim Lorenz, Reinhardt Grade, Peter Riebli
Patented Case
View Patent ↗
Granted: Feb 8, 1994
Filed: Sep 22, 1989
Inventors
Joachim Lorenz
Reinhardt Grade
Peter Riebli
Assignee (at issue)
FMC CORPORATION
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.