Granted Patent
Utility
US 5,985,851 · App. 08/744,852
Use of hyaluronic acid or its derivatives in peritoneal dialysis and formulations thereof
Inventors:
Rudolf Edgar Falk, Samuel Simon Asculai
Patented Case
View Patent ↗
Granted: Nov 16, 1999
Filed: Nov 18, 1996
Inventors
Rudolf Edgar Falk
Samuel Simon Asculai
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.