Granted Patent
Utility
US 5,840,338 · App. 08/556,130
Loading of biologically active solutes into polymer gels
Inventors:
Eric J. Roos, Matthew E. Schiller
Patented Case
View Patent ↗
Granted: Nov 24, 1998
Filed: Nov 6, 1995
Inventors
Eric J. Roos
Matthew E. Schiller
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.