DH

Donald C. Heckman

MC Mci Communications: 1 patents #235 of 579Top 45%
📍 Alexandria, VA: #959 of 1,823 inventorsTop 55%
🗺 Virginia: #18,729 of 34,511 inventorsTop 55%
Overall (All Time): #3,817,621 of 4,157,543Top 95%
1
Patents All Time

Issued Patents All Time

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
5187740 Method and apparatus for telephone call reorigination Joe T. Swaim, Kenneth J. O'Grady, Guido M. Eastep 1993-02-16