Patent Leaderboard
USPTO Patent Rankings Data through Sept 30, 2025
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Liyun Guo

MMMax Mobility: 2 patents #2 of 8Top 25%
Brentwood, TN: #165 of 421 inventorsTop 40%
Tennessee: #7,532 of 20,272 inventorsTop 40%
Overall (All Time): #1,869,588 of 4,157,543Top 45%
2 Patents All Time

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
10926834 Assistive driving system for a wheelchair and method for controlling assistive driving system Mark Richter, Benjamin Phillip Hemkens, William Alexander Emfinger 2021-02-23
10167051 Assistive driving system for a wheelchair and method for controlling assistive driving system Mark Richter, Benjamin Phillip Hemkens, William Alexander Emfinger 2019-01-01