Granted Patent
Utility
US 6,592,901 · App. 09/977,785
Highly compressible ethylcellulose for tableting
Inventors:
Thomas Durig, Ronald Haywood Hall, Richard A. Salzstein
Patented Case
View Patent ↗
Granted: Jul 15, 2003
Filed: Oct 15, 2001
Inventors
Thomas Durig
Ronald Haywood Hall
Richard A. Salzstein
Assignee (at issue)
HERCULES LLC
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.