This is a section of a post that I added a couple of months ago that draws some questions that are currently unanswered. The validity of the CLYW patent is questionable according to this article. The future defense of this patent may be questionable. We will just have to wait and see..The below list is the current participating partners...
UMA Participating Companies
Alcatel
AT&T Wireless
British Telecom
Cingular
Ericsson
Kineto Wireless
Motorola
Nokia
Nortel Networks
O2
Rogers Wireless
Siemens
Sony Ericsson
T-Mobile US
However, patent advisory firm Patent Metrix claims to have come up with "prior art". The company has found a specific US patent, issued in January 1995, that covers roaming between wireless base stations and the cell network.
"An express statement in the earlier patent talks about automated handover," said Hazim Ansari, chief executive of Patent Metrix and author of the report. He does not claim to have the definitive answer, only ammunition for companies approached by Calypso, who would use the earlier patent to argue that Calypso's should not have been issued, and punt the whole issue back to the Patent Office.
"The Patent Office only has a limited amount of time, so it is natural for mistakes to be made. In the wireless world, the patent office doesn't appear to be sufficiently taking into account the history of wireless communication in evaluating patents submitted."
News 
Market Data 
Discover 
AI
