Dave Garrod, a lawyer who leads patent reform group PubPat's initiative against false marking, is now playing the part of the patent troll. He filed a patent infringement lawsuit against a number of tech companies, including a small Texas software company that went out of business years ago.

"Back in 2007, IP Innovation filed a lawsuit against Red Hat and Novell. IP Innovation is a subsidiary of Acacia Technologies. You may have heard of them — they're reported to be the most litigious patent troll in the USA

Can you believe it? This is so great!! Morrison & Foerster are representing TomTom in a new patent infringement lawsuit TomTom has just filed against Microsoft! I love covering their cases. Patent law is usually soooo boring to me, but these guys will keep me awake, and no doubt if I pay attention, I'll learn a lot.

Is the open-source community stealing ideas from commercial vendors? IP Innovations seems to think so; the patent-holding company recently filed a lawsuit for patent infringement against Linux distributors Red Hat and Novell, claiming that Linux uses ideas originally developed at the Xerox PARC laboratory.

When Network Appliance first announced it had filed a lawsuit against Sun Microsystems early in September over alleged patent infringement in ZFS, I didn't know what to make of it.

"Join us and the ScriptumLibre.org Foundation in boycotting all products and services sold by Trend Micro. The proprietary software company Trend Micro has filed a patent infringement lawsuit against Barracuda Systems. They claim that Barracuda is violating their patent by distributing the free software antivirus program ClamAV..."

If you're getting sued for patent infringement, you have a right to know who is really behind the lawsuit, and so does the public. So I started digging up publicly available information. What I found amazed me - so many patent plaintiffs, especially in the Eastern District of Texas, make no products, and just try to extract money out of their IP.

A jury in Rhode Island found Microsoft guilty of patent infringement, ordering it to pay US$388 million to Uniloc, the patent holder.

The already vicious lawsuit involving Barracuda Networks and Trend Micro that is currently in discovery in front of the American International Trade Commission (ITC) just turned nastier. Barracuda has filed its own patent infringement claim against Trend Micro, based upon three recently acquired patents.