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USPTO Patent Rankings Data through Dec 31, 2025
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Levi A. Campbell — 4 Patents in 2021

IBM: 4 patents #1,501 of 11,638Top 15%
Poughkeepsie, NY: #49 of 269 inventorsTop 20%
New York: #1,039 of 12,766 inventorsTop 9%
Overall (2021): #45,432 of 548,734Top 9%
4 Patents 2021

Issued Patents 2021

Showing 1–4 of 4 patents

Patent #TitleCo-InventorsDateApprox Value ⓘ
11197394 Protective louver assembly for air-moving assembly Christopher R. Ciraulo, Milnes P. David, Dustin W. Demetriou, Robert K. Mullady, Roger R. Schmidt 2021-12-07 $3,115,000
11180398 Deionized-water cooling for electrical equipment Prabjit Singh, Lawrence Palmer, Charles L. Arvin 2021-11-23 $2,653,000
11147190 Protective cover assembly for air-moving assembly Christopher R. Ciraulo, Milnes P. David, Dustin W. Demetriou, Robert K. Mullady, Roger R. Schmidt 2021-10-12 $3,967,000
11019755 Effectiveness-weighted control of cooling system components Richard C. Chu, Milnes P. David, Michael J. Ellsworth, Jr., Madhusudan K. Iyengar, Roger R. Schmidt +1 more 2021-05-25 $5,474,000