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USPTO Patent Rankings Data through Sept 30, 2025
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Ryan C. Shirk — 3 Patents in 2020

3M: 3 patents #166 of 1,473Top 15%
Mendota Heights, MN: #4 of 34 inventorsTop 15%
Minnesota: #840 of 7,575 inventorsTop 15%
Overall (2020): #71,224 of 565,922Top 15%
3 Patents 2020

Issued Patents 2020

Showing 1–3 of 3 patents

Patent #TitleCo-InventorsDate
10766004 Composite membranes and methods of use Jinsheng Zhou, David S. Seitz 2020-09-08
10618008 Polymeric ionomer separation membranes and methods of use Michael A. Yandrasits, David S. Seitz, Eric F. Funkenbusch, Jinsheng Zhou, Eric J. Hanson +2 more 2020-04-14
10590899 Fuel injectors with improved coefficient of fuel discharge Scott M. Schnobrich, Barry S. Carpenter, Barbara A. Fipp, James C. Novack, David H. Redinger 2020-03-17