Granted Patent
Utility
US 5,091,881 · App. 07/365,664
Multiple port memory including merged bipolar transistors
Inventor:
James B. Hobbs
Patented Case
View Patent ↗
Granted: Feb 25, 1992
Filed: Jun 13, 1989
Inventor
James B. Hobbs
Assignee (at issue)
Atmel 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.