PR

Phillip W. Robertson

PI Pyro Industries: 2 patents #2 of 7Top 30%
📍 Mount Vernon, WA: #27 of 98 inventorsTop 30%
🗺 Washington: #35,300 of 76,902 inventorsTop 50%
Overall (All Time): #2,293,011 of 4,157,543Top 60%
2
Patents All Time

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
5295474 Combustion grate with rods for pellet fueled stove Oliver J. Whitfield, Abbas Dadkhah-Nikoo, Craig G. Wright 1994-03-22
5137010 Combustion grate for pellet fueled stove Oliver J. Whitfield, Craig G. Wright 1992-08-11