Klausner Technologies has slapped America Online with a $200 million patent infringement lawsuit on a voice platform technology. The suit alleges that features that enable AOL subscribers to receive visual notification of new voice messages and selectively retrieve messages from their displays violates a single Klausner patent. Klausner, founded by inventor Judah Klausner, owns and licenses over 20 patents covering voice messages over the Internet, cellular systems and other communication networks.

“Because of the fast-paced docket in the Eastern District of Virginia, we expect a quick resolution of the matter and the prompt issuance of an injunction that will stop AOL from using this patented technology,” Greg Dovel, an attorney representing Klausner Technologies, said in a statement.

For more on the VoIP patent infringement suit facing AOL read this Washington Business Journal article