HP has sued Acer, its fastest growing PC rival, alleging the infringement of five patents.

HP wants compensation from Acer and its US subsidiary for allegedly selling PCs that infringe on its patents, according to court documents. The complaint was filed in the US District Court for the Eastern District of Texas.

"Acer's legal division is looking into this issue and we have no comment at this stage," said Henry Wang, senior public relations director for Acer, in Taipei.

HP alleged the Taiwanese company knowingly violated the patents, which relate to optical drives, clock frequency switching and power consumption.

HP is asking for a jury trial and is seeking compensation for the use of its technology in Acer PCs as well as treble damages for intentional violation of the patents and the payment of all legal fees by Acer.

HP became the world's largest PC vendor in the fourth quarter of last year, according to market researcher IDC. Acer took fourth place, although it gauged the strongest growth among any company in the top ten ranking. Dell was second, and Lenovo took third.