Patent Leaderboard
USPTO Patent Rankings Data through Sept 30, 2025
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Harold W. Keller

Abbott: 2 patents #2,462 of 5,431Top 50%
Rockford, IL: #538 of 1,291 inventorsTop 45%
Illinois: #34,584 of 84,256 inventorsTop 45%
Overall (All Time): #2,298,653 of 4,157,543Top 60%
2 Patents All Time

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
5376393 Removal of phosphorous from mammalian milk using ion exchange Christy A. Nardelli, Terrence B. Mazer, Arthur J. C. L. Hogarth, John D. Suh, Leona M. Pickett +1 more 1994-12-27
5248804 Separation of phytate from plant protein using ion exchange Christy A. Nardelli, Terrence B. Mazer, Arthur J. C. L. Hogarth, John D. Suh, Andre Daab-Krzykowski +2 more 1993-09-28