DD

Daniel J. Despen

CA Carbon: 10 patents #2 of 12Top 20%
📍 Oakdale, MN: #1 of 37 inventorsTop 3%
🗺 Minnesota: #33 of 5,562 inventorsTop 1%
Overall (2025): #6,398 of 469,880Top 2%
10
Patents 2025

Issued Patents 2025

Showing 1–10 of 10 patents

Patent #TitleCo-InventorsDate
12404471 High-carbon biogenic reagents and uses thereof James A. Mennell, Steve Filips 2025-09-02
12404472 High-carbon biogenic reagents and uses thereof James A. Mennell, Steve Filips 2025-09-02
12350648 Methods and apparatus for producing activated carbon from biomass through carbonized ash intermediates James A. Mennell, David Reamer 2025-07-08
12351770 High-carbon biogenic reagents and uses thereof James A. Mennell, Steve Filips 2025-07-08
12297399 Process for producing high-carbon biogenic reagents James A. Mennell 2025-05-13
12296316 Highly mesoporous activated carbon James A. Mennell, David Reamer 2025-05-13
12297398 Methods and apparatus for enhancing the energy content of carbonaceous materials from pyrolysis James A. Mennell 2025-05-13
12239953 Biogenic porous carbon silicon dioxide compositions James A. Mennell, Dustin Slack 2025-03-04
12208368 Halogenated activated carbon compositions and methods of making and using same James A. Mennell 2025-01-28
12208369 Halogenated activated carbon compositions and methods of making and using same James A. Mennell 2025-01-28