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David Michael Olkkonen

📍 Viburnum, MO: #2 of 3 inventorsTop 70%
🗺 Missouri: #6,609 of 23,789 inventorsTop 30%
Overall (All Time): #1,443,597 of 4,157,543Top 35%
3
Patents All Time

Issued Patents All Time

Showing 1–3 of 3 patents

Patent #TitleCo-InventorsDate
10533238 Processes for recovering non-ferrous metals from solid matrices Massimo Maccagni, Jonathan Hylkjier Nielsen, William Leonard Lane, Timothy Roy Hymer 2020-01-14
9945006 Processes for recovering non-ferrous metals from solid matrices Massimo Maccagni, Jonathan Hylkjier Nielsen, William Leonard Lane, Timothy Roy Hymer 2018-04-17
8715483 Process for the recovery of lead from lead-bearing materials Massimo Maccagni, Jonathan Hylkjier Nielson, William Leonard Lane 2014-05-06