Granted Patent
Utility
US 4,191,613 · App. 05/760,499
Malate dehydrogenase conjugates for enzyme immunoassays
Inventors:
Edwin F. Ullman, Kenneth E. Rubenstein
Patented Case
View Patent ↗
Granted: Mar 4, 1980
Filed: Jan 19, 1977
Inventors
Edwin F. Ullman
Kenneth E. Rubenstein
Assignee (at issue)
Syva Company
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.