Granted Patent
Utility
US 5,639,738 · App. 07/838,675
Treatment of basal cell carcinoma and actinic keratosis employing hyaluronic acid and NSAIDs
Inventors:
Rudolf Edgar Falk, Samuel Simon Asculai
Patented Case
View Patent ↗
Granted: Jun 17, 1997
Filed: Feb 21, 1992
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.