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. ®

The essential guide to IT transformation

More from The Register

next story
GCHQ protesters stick it to British spooks ... by drinking urine
Activists told NOT to snap pics of staff at the concrete doughnut
Britain's housing crisis: What are we going to do about it?
Rent control: Better than bombs at destroying housing
What do you mean, I have to POST a PHYSICAL CHEQUE to get my gun licence?
Stop bitching about firearms fees - we need computerisation
Top beak: UK privacy law may be reconsidered because of social media
Rise of Twitter etc creates 'enormous challenges'
Redmond resists order to hand over overseas email
Court wanted peek as related to US investigation
Ex US cybersecurity czar guilty in child sex abuse website case
Health and Human Services IT security chief headed online to share vile images
NZ Justice Minister scalped as hacker leaks emails
Grab your popcorn: Subterfuge and slur disrupts election run up
We need less U.S. in our WWW – Euro digital chief Steelie Neelie
EC moves to shift status quo at Internet Governance Forum
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.
Endpoint data privacy in the cloud is easier than you think
Innovations in encryption and storage resolve issues of data privacy and key requirements for companies to look for in a solution.
Why cloud backup?
Combining the latest advancements in disk-based backup with secure, integrated, cloud technologies offer organizations fast and assured recovery of their critical enterprise data.
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.
High Performance for All
While HPC is not new, it has traditionally been seen as a specialist area – is it now geared up to meet more mainstream requirements?