IP Library Granted Patent US 5,122,383
Granted Patent Utility
US 5,122,383 · App. 07/702,043

Sorbitan esters as skin permeation enhancers

Inventors: Sonia J. Heiber, Dinesh C. Patel, Charles D. Ebert
Patented Case View Patent ↗
Granted: Jun 16, 1992 Filed: May 17, 1991
Inventors
Sonia J. Heiber
Dinesh C. Patel
Charles D. Ebert
Assignee (at issue)
TheraTech, Inc.

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.

Order Certified Copies
Most orders are placed with the USPTO same day — all within 24 business hours.
Order via The Patent Place →
Pre-filled with this patent's details
Quick Facts
Patent No.
US 5,122,383
App. No.
07/702,043
Filed
1991-05-17
Granted
1992-06-16
Kind
A