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USPTO Patent Rankings Data through Sept 30, 2025
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Erin A. McDowell — 4 Patents in 2021

3M: 4 patents #58 of 1,276Top 5%
Afton, MN: #2 of 13 inventorsTop 20%
Minnesota: #428 of 7,038 inventorsTop 7%
Overall (2021): #50,683 of 548,734Top 10%
4 Patents 2021

Issued Patents 2021

Showing 1–4 of 4 patents

Patent #TitleCo-InventorsDate
11156814 Optical system for displaying an object to a viewer Michael L. Steiner, Andrew John Ouderkirk, Timothy L. Wong, Zhisheng Yun, Jo A. Etter +2 more 2021-10-26
11067850 Multi-mode display Andrew John Ouderkirk, Timothy L. Wong 2021-07-20
11061233 Polarizing beam splitter and illuminator including same Andrew John Ouderkirk, Zhisheng Yun, Timothy L. Wong, Kandyce M. Bohannon 2021-07-13
10955666 Compact projection systems with a folded optical path Andrew John Ouderkirk, Zhisheng Yun 2021-03-23