RH

Robert E. Heggestad

HI Harmon Industries: 3 patents #2 of 18Top 15%
GE: 1 patents #19,878 of 36,430Top 55%
Overall (All Time): #1,273,950 of 4,157,543Top 35%
4
Patents All Time

Issued Patents All Time

Patent #TitleCo-InventorsDate
6459965 Method for advanced communication-based vehicle control Alan L. Polivka, James R. Egnot, Jeffrey Baker, William L. Matheson 2002-10-01
5533695 Incremental train control system Donald B. Schaefer, Jr. 1996-07-09
5452870 Fixed data transmission system for controlling train movement 1995-09-26
5340062 Train control system integrating dynamic and fixed data 1994-08-23