Granted Patent
Utility
US 5,616,459 · App. 07/931,560
Selection of ribozymes that efficiently cleave target RNA
Inventors:
Fred R. Kramer, David Dubnau, Karl Drlica, Abraham Pinter
Patented Case
View Patent ↗
Granted: Apr 1, 1997
Filed: Aug 18, 1992
Inventors
Fred R. Kramer
David Dubnau
Karl Drlica
Abraham Pinter
Assignee (at issue)
The Public Health Research Institute Of the City of New York, Inc.
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.