DA

Donald P. Aupperle

BN Biochar Now: 2 patents #1 of 6Top 20%
📍 Seattle, WA: #840 of 4,747 inventorsTop 20%
🗺 Washington: #2,691 of 14,769 inventorsTop 20%
Overall (2020): #178,355 of 565,922Top 35%
2
Patents 2020

Issued Patents 2020

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
10751885 Gripper assembly for portable biochar kiln Mikel S. Olander, Perry H. Pierce, William T. Beierwaltes, James G. Gaspard, II 2020-08-25
10527282 Managed biochar kiln Mikel S. Olander, Benjamin M. Beierwaltes, William T. Beierwaltes, James G. Gaspard, II 2020-01-07