Two of the world's biggest PC manufacturers seem determined to go toe-to-toe in a patent dispute, with Taiwan-based Acer issuing a counterclaim against two lawsuits from Hewlett-Packard.

In March, HP filed a lawsuit in Texas accusing Acer of infringing five US patents on processor tweaks, power consumption technology and DVD editing tools. A second lawsuit followed weeks later for five additional US patent infringements, again on power consumption, bus operations, resolution detection and temperature management.
This has prompted the counterclaim in which Acer denies any infringement of HP's patents and charges HP with infringing its patents on antennae and DVD ROM head technologies.
As usual, Acer's official statement is curt and to the point:
"Acer Inc. has filed a counterclaim on July 19, 2007 with the reason of patent infringement against Hewlett-Packard Development Co. (HP) before the U.S. Eastern District of Texas Court.
This counterclaim is part of Acer's response for the "Hewlett-Packard Co. v. Acer Inc. and Acer America Corp." case (No. 2:07-CV-103), and includes innovations with respect to the antenna and DVD ROM head technologies.
With or without a legal proceeding, Acer persists to take all necessary steps to protect and enforce its patented technologies."
Lawyers involved will obviously be hoping that the legal proceedings won't be as brief …