Granted Patent
Utility
US 5,653,950 · App. 08/646,455
Process for producing abrasion-resistant sodium perborate monohydrate with high bulk density and high rate of solution
Inventors:
Ivan Pelgrims, Claas-Juergen Klasen
Patented Case
View Patent ↗
Granted: Aug 5, 1997
Filed: May 8, 1996
Inventors
Ivan Pelgrims
Claas-Juergen Klasen
Assignee (at issue)
Degussa AG
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.