DZ

Donald Robert Ziemann

AT AT&T: 4 patents #4,399 of 18,772Top 25%
📍 Hillsboro, IL: #12 of 89 inventorsTop 15%
🗺 Illinois: #21,447 of 84,256 inventorsTop 30%
Overall (All Time): #1,269,584 of 4,157,543Top 35%
4
Patents All Time

Issued Patents All Time

Showing 1–4 of 4 patents

Patent #TitleCo-InventorsDate
6587545 System for providing expanded emergency service communication in a telecommunication network James T. Antonucci, Brian Glen Barnier, Lawrence W. Ciesla, Douglas Craig Kroupa, Robert Allen Sherry 2003-07-01
6415018 Telecommunication system and method for handling special number calls having geographic sensitivity James T. Antonucci, Brian Glen Barnier, Lawrence W. Ciesla, Douglas Craig Kroupa, Robert Allen Sherry 2002-07-02
6101240 Arrangement for public safety answering points Mark Richard Blair, Eugene Gerber, Mark Miller, Ted Moulos, Christopher Fairol Robbins 2000-08-08
5425087 Telephone usage monitoring arrangement Eugene Gerber, John H. Gustavson, Frank J. Olderr, Mary Rita Otto, Wayne A. Senneke 1995-06-13