1. Acacia Technologies' digital media transmission patent, which the company defines as covering "the transmission and receipt of digital content via the Internet, cable, satellite and other means." The EFF is worried that Acacia, which has already sued several large communications companies, is unfairly targeting small audio- and video-streaming websites.Link
2. Clear Channel's Instant Live patent, which covers technology used to produce instant recordings of live concerts. The media giant recently bought the patent and is now going after artists who choose to give fans CDs of their shows.
3. Acceris Communication's voice over IP technology patent. Schultz said Acceris is targeting smaller VOIP players. "They're sending (the) patents to investors," said Schultz, "trying to intimidate the investors."