Once again Vincent McBurney delivers a fantastic summary of the latest state of the Juxtacomm ETL patent case: SQL Server, DB2 and DataStage will fight out Data Integration Patent Infringement.
I'm most interested from the Constellar point of view - I first came across Constellar (then Information Junction) as a product on sale in late 1993 / early 1994 (before joining the company from Oracle in 1995), so it always seemed clear to me that it would qualify as prior art to Juxtacomm's 1998 patent. Oddly, it seems that the parties to the trial have agreed that Constellar Hub (and DataMirror Transformation Server) can be dropped from consideration; they won't be subject to damages - but equally they won't be considered as prior art. I don't understand that, but I guess the IBM lawyers must know what they are doing.
So, the case rumbles on, serving (if nothing else) to show how broken the US software patent system is.