A member of this site alerted me to this case at the TTAB (Trademark Trial and Appeal Board): http://ttabvue.uspto.gov/ttabvue/v?qs=75429699

In short, Autodesk wants the TTAB to cancel the "OPENDWG" trademark currently registered to the Open Design Alliance (there are actually six different registrations being contested, all for the same mark). You can read the filings directly on the USPTO web site. The original petition is here: http://ttabvue.uspto.gov/ttabvue/v?pno=92047002&pty=CAN&eno=1. The parties are currently in the discovery phase, with testimony to begin Novermber 16, 2007, and to continue until February 29, 2008.

The January 18, 2007 filing date of this petition indicates that it was done just as the trademark infringement lawsuit was getting underway, and before a settlement had been reached. After an extension of time was granted, ODA answered the petition on June 11 (see http://ttabvue.uspto.gov/ttabvue/ttabvue-92047002-CAN-11.pdf) denying any infringement and requesting that the petition be dismissed for several reasons.

I will continue to post here as I learn of new developments in the case.