Granted Patent
Utility
US 4,822,747 · App. 06/939,902
Polyacrylamide gel particles having hapten moieties bound thereto as immunoassay reagent
Inventors:
Richard D. Johnson, H.-Volker Runzheimer, Ronald G. Sommer, Kin F. Yip
Patented Case
View Patent ↗
Granted: Apr 18, 1989
Filed: Dec 9, 1986
Inventors
Richard D. Johnson
H.-Volker Runzheimer
Ronald G. Sommer
Kin F. Yip
Assignee (at issue)
Miles 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.