Patent Leaderboard
USPTO Patent Rankings Data through Sept 30, 2025
HF

Harold Todd Freemyer

3M: 6 patents #2,536 of 11,543Top 25%
Woodbury, MN: #548 of 1,562 inventorsTop 40%
Minnesota: #11,810 of 52,454 inventorsTop 25%
Overall (All Time): #851,845 of 4,157,543Top 25%
6 Patents All Time

Issued Patents All Time

Showing 1–6 of 6 patents

Patent #TitleCo-InventorsDate
8962214 Microporous PVDF films Samantha D. Smith, Gene H. Shipman, Robert M. Floyd, Steven J. Hamrock, Michael A. Yandrasits +1 more 2015-02-24
8663868 Microporous PVDF films Samantha D. Smith, Gene H. Shipman, Robert M. Floyd, Steven J. Hamrock, Michael A. Yandrasits +1 more 2014-03-04
7348088 Polymer electrolyte membrane Steven J. Hamrock, Linda M. Rivard, George Moore 2008-03-25
7338692 Microporous PVDF films Samantha D. Smith, Gene H. Shipman, Robert M. Floyd, Steven J. Hamrock, Michael A. Yandrasits +1 more 2008-03-04
7304101 Method of purifying a dispersion of ionic fluoropolymer Klaus Hintzer, Kai H. Lochhaas, Tanja Zeif, Steven J. Hamrock 2007-12-04
7279215 Membrane modules and integrated membrane cassettes Jonathan F. Hester, David J. Colburn, Michael K. Domroese, Robert S. Kody, David F. Slama +1 more 2007-10-09