Feeds

US shoots down key Rambus patent

Barth trio invalidated, multimillion income stream dries up

The Essential Guide to IT Transformation

Legal attack dog Rambus has suffered another blow to its memory technology licensing business after a US patent office appeals board declared three Barth patents invalid.

Reuters reports that the three Barth patents refer to PC memory controllers and have been used by Rambus to collect millions of dollars in licensing fees from HP, Nvidia and other suppliers. The appeals board cut two of them down in September last year and the third one fell on 24 January.

This decision comes after Rambus lost a near-$4bn lawsuit against Micron and Hynix Semiconductor in November 2011.

It is thought unlikely that Rambus will appeal the latest ruling as the patent officer examiner looking at it would not want to disagree with the appeals board. The overall effect would be to reduce Rambus' patent licence income stream.

Rambus is emphasising LED lighting and cryptography in its recent activities and may be preparing to gradually vacate the computer memory field, a strategy that would be loudly applauded by its memory licensees and bruised legal case opponents in that area. ®

Boost IT visibility and business value

More from The Register

next story
Just TWO climate committee MPs contradict IPCC: The two with SCIENCE degrees
'Greenhouse effect is real, but as for the rest of it ...'
Adam Afriyie MP: Smart meters are NOT so smart
Mega-costly gas 'n' 'leccy totting-up tech not worth it - Tory MP
'Blow it up': Plods pop round for chat with Commonwealth Games tweeter
You'd better not be talking about the council's housing plans
Arrr: Freetard-bothering Digital Economy Act tied up, thrown in the hold
Ministry of Fun confirms: Yes, we're busy doing nothing
ONE EMAIL costs mining company $300 MEEELION
Environmental activist walks free after hoax sent share price over a cliff
Help yourself to anyone's photos FOR FREE, suggests UK.gov
Copyright law reforms will keep m'learned friends busy
Apple smacked with privacy sueball over Location Services
Class action launched on behalf of 100 million iPhone owners
UK government officially adopts Open Document Format
Microsoft insurgency fails, earns snarky remark from UK digital services head
prev story

Whitepapers

Implementing global e-invoicing with guaranteed legal certainty
Explaining the role local tax compliance plays in successful supply chain management and e-business and how leading global brands are addressing this.
The Essential Guide to IT Transformation
ServiceNow discusses three IT transformations that can help CIO's automate IT services to transform IT and the enterprise.
Consolidation: The Foundation for IT Business Transformation
In this whitepaper learn how effective consolidation of IT and business resources can enable multiple, meaningful business benefits.
How modern custom applications can spur business growth
Learn how to create, deploy and manage custom applications without consuming or expanding the need for scarce, expensive IT resources.
Build a business case: developing custom apps
Learn how to maximize the value of custom applications by accelerating and simplifying their development.