LOS ANGELES — Ronald A. Katz Technology Licensing LP said Certegy Inc., which provides credit, debit, and merchant card processing and other services to financial institutions and merchants, had agreed to pay it licensing fees.

Katz holds 43 U.S. patents and routinely sues corporations that it says are using its intellectual property.

It said Certegy has licensed technology that helps it provide automated and live customer service to its 6,000 bank and credit union customers.

Certegy, which is in Alpharetta, Ga., was founded this year as a spinoff of Equifax Inc.

AT&T Corp., Marshall & Ilsley Corp., First Union Corp., and International Business Machines Corp. have also agreed to pay license fees to Ronald A. Katz Technology.

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