Granted Patent
Utility
US 4,839,000 · App. 06/933,246
Buffer compensation in enzyme-modified ion sensitive devices
Inventor:
Mark J. Eddowes
Patented Case
View Patent ↗
Granted: Jun 13, 1989
Filed: Nov 21, 1986
Inventor
Mark J. Eddowes
Assignee (at issue)
Thorn EMI plc
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.