Granted Patent
Utility
US 5,674,436 · App. 08/565,394
Preparation of hydrogen peroxide/polymer complexes in powder form
Inventors:
Jorg Breitenbach, Axel Sanner
Patented Case
View Patent ↗
Granted: Oct 7, 1997
Filed: Nov 30, 1995
Inventors
Jorg Breitenbach
Axel Sanner
Assignee (at issue)
BASF SE
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.