Robert Petrelli — 7 Patents at AT&T

Robert Petrelli has been granted 7 US patents while listed as an inventor at AT&T. The first was granted in 1990 and the most recent in March 2002. Robert Petrelli ranks #680,018 of 4,157,543 US inventors in our database (top 16.4%). Patent records list Robert Petrelli in Naperville, IL, US.

Issued Patents All Time

Showing 1–7 of 7 patents

Patent #	Title	Co-Inventors	Date	Approx Value ⓘ
6359980	Method for administering advanced number portability numbers	Cecil Bernard Cates, James Patrick Dunn, Ronald Martin, Jack R. Penrod, John Peterson +1 more	2002-03-19	$14,409,000
5694459	Personalized information service system	Marjorie S. Backaus, Claire Darcelle Barrera, Esther L. Davenport, Harold Fahrer, Barry Norman Ostroff +1 more	1997-12-02
5459779	Method for switching telephone calls to information service providers	Marjorie S. Backaus, John J. Butz, Ali M. Cherchali, Esther L. Davenport, Harold Fahrer +1 more	1995-10-17
5444713	Telephone information service system using digital and out-of-band signaling	Marjorie S. Backaus, Claire Darcelle Barrera, Esther L. Davenport, Harold Fahrer, Barry Norman Ostroff +1 more	1995-08-22
5185781	Automation of telephone operator assistance calls	Douglas C. Dowden, Richard W. Hemmeter, Diane E. Herr, William K. McCormick, Richard J. Piereth +3 more	1993-02-09
5181237	Automation of telephone operator assistance calls	Douglas C. Dowden, Richard W. Hemmeter, Diane E. Herr, William K. McCormick, Richard J. Piereth +3 more	1993-01-19
4899375	More efficient call handling for operator assistance calls	Thomas Michael Bauer, Richard W. Hemmeter, Richard J. Piereth, Cyrenus M. Rubald	1990-02-06

Robert Petrelli — 7 Patents

Issued Patents All Time

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