Granted Patent
Utility
US 6,495,167 · App. 09/901,205
Preparation of powder agglomerates
Inventor:
Tsong-Toh Yang
Patented Case
View Patent ↗
Granted: Dec 17, 2002
Filed: Jul 9, 2001
Inventor
Tsong-Toh Yang
Assignee (at issue)
SCHERING 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.