The US Patent and Trademak Office lists the following attempts at registering DWG in some form:
Trademarks
RASTERDWG by Softelec (registered October 28, 1997)
OPENDWG logo by OpenDesign Alliance (registered April 23, 2002)
OPENDWG phrase by OpenDesign Alliance (registered May 27, 2003)
DWGEDITOR by SolidWorks (registered August 22, 2006)
Not Yet Approved
DWGGATEWAY by SolidWorks (filed June 16, 2005)
DWG logo by Autodesk (filed April 3, 2006)
DWG term by Autodesk (filed April 3, 2006)
DWG EXTREME by Autodesk (filed April 3, 2006)
DWG TRUECONVERT by Autodesk (filed April 3, 2006)
DWG TRUEVIEW by Autodesk (filed April 3, 2006)
REALDWG by Autodesk (filed April 3, 2006)
TRUSTEDDWG by Autodesk (September 28, 2006)
So, competitors to Autodesk have been able to register words containing DWG, but not Autodesk itself.
I've been trying to keep relatively quiet on this subject... But Autodesk is suing the Open Design Alliance, through the US Trademark Trial and Appeal Board, to cancel the ODA's trademarks on OpenDWG. You can read the full file at http://ttabvue.uspto.gov/ttabvue/v?qs=75429699
Even though this action is not a court of law, it is a legal proceeding, and the ODA will likely be spending hundreds of thousands of dollars on attorneys to try and protect its trademarks.
Even while the trademark office is telling Autodesk they can't trademark DWG, Autodesk is claiming an exclusive right to use DWG in its action against the ODA.
The end result of this legal harassment, which Autodesk started in earnest a bit over a year ago, could be the bankruptcy of the ODA. And, possibly, this is Autodesk's intent.
Posted by: Evan Yares | Dec 19, 2007 at 05:06 AM
More can be found here about the situation here in Europe.
http://jtbworld.blogspot.com/2007/10/dwg-trademark-dispute-continues.html
Posted by: Jimmy Bergmark | Dec 19, 2007 at 08:51 AM
The ODA and other organizations have trademarked product brands. If by example, any firm was granted the rights to DWG as a trademark, that would preclude other companies from using DWG as a substring in any “product brand.” To make such a move is indeed an aggressive tactic with ill-driven motivation and intent. Autodesk, Solidworks, the ODA, and others should be able to create and trademark unique product brand names that incorporate the DWG file type extension to better denote what the product is about.
The following are links to recent trademark cancellation requests made by Autodesk:
DWGEDITOR http://ttabvue.uspto.gov/ttabvue/v?qs=92046253
OPENDWG http://ttabvue.uspto.gov/ttabvue/v?qs=75429699
RASTERDWG http://ttabvue.uspto.gov/ttabvue/v?qs=92047083
With respect to Autodesk’s inability to receive trademarks, please note the rather recent filing dates as more the reason for any inability relative to their “competitors.” The ODA for clarification is not a competitor of Autodesk. Our mission is to enable the design eco-system to have interoperability between CAD applications that provide specialized features that no single CAD vendor could create on their own.
The ODA alliance is 3,000 members strong, including industry-recognized organizations listed at http://www.opendesign.com/membership/sustain.htm. We are very confident that bankruptcy is not in our future.
Posted by: Arnold van der Weide, President, Open Design Alliance | Jan 04, 2008 at 01:43 AM
Several years ago I was involved with a company that imported products from Turkey. Our company trademarked the Turkish brand name in the UK and USA as it turned out that the brand was not trademarked in either domain. We owned the trademark.
Trademark law is complex but the basic premise is that it is a first come first served principle whereby company A may have a brand but Company B can trademark that brand name if they use it and it is deemed a business advantage.
Autodesk were simply mistaken in that they should have trademarked DWG as a brand back in the 80s.
Attempting to resolve the situation now is not about protecting the DWG brand but trying to force the CAD industry to adopt official DWG formats - it is business pure and simple.
It is ironic then that in the same blog there is a feature on Adobe's growth. Funny that Adobe, who invented pdf have now opted to make it an open standard with an ISO classification. If only all companies in the CAD sector worked that way?
Posted by: Kevin Quigley | Jan 08, 2008 at 02:18 AM
Hej there guys. I stumbled across this article and was pleased to add it to the text I help maintain at wikipedia. Many of you might be interested in the article which looks at the history and implementation of the DWG format. See: http://en.wikipedia.org/wiki/.dwg
Please let me know if there is anything missing which should be in the article.
dlithgow (remove this text) at gmail (add a dot here) com
Posted by: Duncan Lithgow | Jul 01, 2008 at 03:01 AM