Granted Patent
Utility
US 6,216,136 · App. 09/115,905
Method for performing complicated schema changes within a database
Inventor:
Ulf Mikael Ronstrom
Patented Case
View Patent ↗
Granted: Apr 10, 2001
Filed: Jul 15, 1998
Inventor
Ulf Mikael Ronstrom
Assignee (at issue)
TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)
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.