Another ad blocker claims Adblock Plus used a trademark complaint to force it offline
Andrei Mincov's commentary on the original article
While the name ADBLOCKER may have been considered clearly descriptive today, it wasn't when it was registered as a trademark in multiple jurisdictions. If creators of AdBlock Ultimate think that "rebranding" to Ad Blocker Ultimate will be sufficient to avoid confusion with AdBlock Plus, they may find themselves in the middle of a completely unnecessary legal battle. I mean, since you're rebranding already anyway, why not rebrand to something that people would not confuse with an addon that is known to a much greater number of people? At best, this will detract their attention from creating a superior product. At worst, it will be the end of their product with all the legal fees and costs.