Dec 03 2007
Comcast, Cablevision, Ebay, Apple and AT&T Sued for Patent Infringement by Klausner Technologies
NEW YORK –BUSINESS WIRE– Dec 03, ‘07 — Klausner Technologies announced today that it has filed patent lawsuits under its visual voicemail patents against Comcast, Cablevision and eBay’s Skype with damages and future royalties estimated at $300 million.
The lawsuit asserts that the above companies’ VOIP voicemail products and services infringe Klausner Technologies’ U.S. Patent 5,572,576. The patent has already been licensed to various other companies which provide the same visual voice messaging services, including Time Warner’s AOL for its AOL Voicemail services, Vonage Holdings for its Vonage Voicemail Plus services as well as others, under the Klausner Patents.
Cablevision’s Optimum Voicemail, Comcast’s Digital Voice Voicemail and eBay’s Skype Voicemail each violate Klausner’s intellectual property rights by allowing users to selectively retrieve and listen to voice messages via message inbox displays.
Against Apple:
Klausner Technologies also announced today that it has filed a patent lawsuit under its visual voicemail patents against Apple on the iPhone, with damages and future royalties estimated at $360 million.
The lawsuit asserts that Apple’s iPhone Visual Voicemail infringes Klausner Technologies’ U.S. Patents 5,572,576 and 5,283,818.
Klausner Technologies was founded by Judah Klausner, the inventor of the PDA and electronic organizer. Apple’s original groundbreaking PDA, the Newton, was, in fact, covered under an OEM patent license granted by Judah Klausner over twenty years ago under his landmark US Patent 4,117,542.
The iPhone violates Klausner’s intellectual property rights by allowing users to selectively retrieve voice messages via the iPhone’s inbox display. Apple has called iPhone’s Visual Voicemail “one of the greatest advances in the history of mankind … without question.”
Against AT&T:
Klausner Technologies further announced today that it has filed a patent lawsuit under its visual voicemail patents against AT&T for selling the Apple iPhone, its Visual Voicemail service and other visual voice messaging services, with damages and future royalties estimated at $360 million.
The lawsuit asserts that sales of Apple’s iPhone, Visual Voicemail and other visual voice messaging services implemented by AT&T infringe Klausner Technologies’ U.S. Patents 5,572,576 and 5,283,818.
All three suits have been filed by the California law firm of Dovel & Luner in a federal court in the Eastern District of Texas.


