Granted Patent
Utility
US 5,990,096 · App. 08/466,713
Formulations containing hyaluronic acid
Inventors:
Samuel Simon Asculai, David Hochman, Don Purschke, David William Harper, Ehud Shmuel Klein, Rudolf Edger Falk
Patented Case
View Patent ↗
Granted: Nov 23, 1999
Filed: Jun 6, 1995
Inventors
Samuel Simon Asculai
David Hochman
Don Purschke
David William Harper
Ehud Shmuel Klein
Rudolf Edger Falk
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.