Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025
MH

Mark Hefner — 3 Patents

Oracle: 1 patents #8,339 of 14,854Top 60%
Fort Pierce, FL: #20 of 124 inventorsTop 20%
Florida: #16,773 of 67,251 inventorsTop 25%
Overall (All Time): #1,328,092 of 4,157,543Top 35%
3 Patents All Time
Mark Hefner has been granted 3 US patents while listed as an inventor at Oracle. The first was granted in 2002 and the most recent in March 2005. Mark Hefner ranks #1,328,092 of 4,157,543 US inventors in our database (top 31.9%). Patent records list Mark Hefner in Fort Pierce, FL, US.

Issued Patents All Time

Showing 1–3 of 3 patents

Patent #TitleCo-InventorsDate
6867708 Communications system and method for interconnected networks having a linear topology, especially railways Albert D. Darby, Jr., David Poltz, Irfan Ali, William Cherrick Schoonmaker, George Jarman 2005-03-15
6400281 Communications system and method for interconnected networks having a linear topology, especially railways Albert D. Darby, Jr., David Michael Peltz, Irfan Ali, William Cherrick Schoonmaker, George Jarman 2002-06-04
6336148 Automatic checking of public contracts and private constraints on distributed objects Roongko Doong, Sriram Sankar 2002-01-01