HW

Harold A. Walker

UN Unknown: 2 patents #12,644 of 83,584Top 20%
📍 Jonesborough, TN: #33 of 169 inventorsTop 20%
🗺 Tennessee: #3,130 of 20,272 inventorsTop 20%
Overall (All Time): #849,292 of 4,157,543Top 25%
6
Patents All Time

Issued Patents All Time

Showing 1–6 of 6 patents

Patent #TitleCo-InventorsDate
9365370 Bulk material storage and reclaim system 2016-06-14
7411136 Multiple batch system and method for loading railcars of a wide range of capacities and designs 2008-08-12
RE37062 Coal loading system and method 2001-02-20
6155767 Three-batch coal loadout system and method 2000-12-05
5772390 Coal loading system and method 1998-06-30
4954036 Variable height silo charge system 1990-09-04