Granted Patent
Utility
US 6,140,312 · App. 08/466,714
Formulations containing hyaluronic acid
Inventors:
Rudolf Edger Falk, Samuel Simon Asculai, David Hochman, Don Purschke, Ehud Shmuel Klein, David William Harper
Patented Case
View Patent ↗
Granted: Oct 31, 2000
Filed: Jun 6, 1995
Inventors
Rudolf Edger Falk
Samuel Simon Asculai
David Hochman
Don Purschke
Ehud Shmuel Klein
David William Harper
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.