Granted Patent
Utility
US 5,942,498 · App. 08/467,171
Formulations containing hyaluronic acid
Inventors:
Rudolf Edger Falk, Samuel Simon Asculai, Ehud Shmuel Klein, David William Harper, David Hochman, Don Purschke
Patented Case
View Patent ↗
Granted: Aug 24, 1999
Filed: Jun 6, 1995
Inventors
Rudolf Edger Falk
Samuel Simon Asculai
Ehud Shmuel Klein
David William Harper
David Hochman
Don Purschke
Assignee (at issue)
Hyal Pharmaceutical 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.