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THEIS RESEARCH ALLEGES INFRINGEMENT OF PATENTS BY AMERITECH

 THEIS RESEARCH ALLEGES INFRINGEMENT OF PATENTS BY AMERITECH
 GURNEE, Ill., Feb. 27 /PRNewswire/ -- Theis Research, Inc., President Peter Theis today sent a notice through legal counsel Allegretti and Witcoff, Ltd., to Ameritech (American Information Technologies Corp.) that it is broadly using patented Theis Research technologies without a license. Ameritech is the parent company of Illinois Bell, Ohio Bell, Wisconsin Bell, Michigan Bell, Indiana Bell, Ameritech Audiotext Services, Inc., and Tigon Corp.
 The letter to Ameritech alleges infringement of patents 4,692,817, 4,539,436 and 4,328,396 issued to Peter Theis. Additional patents may be added to the infringement charges as Theis Research uncovers more information about Ameritech Services. The patents relate to advanced processes and technologies in automated voice processing. Theis has endeavored to make the industry in general aware of the availability of licenses to use his technologies. Ameritech was first notified of their availability in July 1991.
 Theis, a pioneer in the automated voice processing industry, invented equipment which is relevant to most voice processing applications in the world today. Theis is inventor or co-inventor for 15 U.S. patents and 15 corresponding foreign patents with four more U.S. patents pending.
 "We have met with a number of companies including Siemens Corp., ROLM, Pacific Telesis, Octel Communications Corp. and VMX, Inc. to discuss licensing," Theis said. "Licensees of Theis technologies will hold a significant competitive advantage over their competitors -- one that enhances productivity at a cost savings," he added. "To support our licensees, we will be enacting an aggressive program to protect these patents."
 Theis' innovations in automated voice processing are technology based ideas that are often "invisible" to users. Such innovations include, but are not limited to, broadcasting equipment that allows users to change a portion of a message without changing the entire message, and answering and recording equipment that plays back messages in chronological order regardless of the telephone line on which they were received.
 Theis Research, Inc., was founded in 1991 in Gurnee. The firm patents and licenses new and existing technologies developed by its founder, Peter Theis.
 Allegretti & Witcoff, Ltd., is a leading U.S. litigation firm. Bradley Hulbert, senior partner with Allegretti & Witcoff, Ltd., represents Mr. Theis for trial. Hulbert specializes in patents, copyrights and trademarks, and is a professor at Northwestern University's school of engineering, the Northwestern University Technological Institute.
 -0- 2/27/92
 /CONTACT: Tom Crosby of Edelman Public Relations, 312-280-7000, for Theis Research/ CO: Theis Research Inc.; Ameritech ST: Illinois IN: TLS SU:


GK -- NY046 -- 3248 02/27/92 11:59 EST
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Publication:PR Newswire
Date:Feb 27, 1992
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