Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025
DD

Danan Dou — 4 Patents in 2021

JDJohn Deere: 4 patents #49 of 734Top 7%
Cedar Falls, IA: #1 of 59 inventorsTop 2%
Iowa: #82 of 1,785 inventorsTop 5%
Overall (2021): #51,859 of 548,734Top 10%
4 Patents 2021

Issued Patents 2021

Showing 1–4 of 4 patents

Patent #TitleCo-InventorsDateApprox Value ⓘ
11073067 Exhaust gas treatment system and method with reductant injection and close-coupled treatment element Eric J. Hruby, Shyan-Cherng Huang 2021-07-27 $74,916,000
11022016 Exhaust gas treatment system and method with improved regeneration Shyan-Cherng Huang, Eric J. Hruby 2021-06-01 $84,910,000
10961887 Integrated reductant mixer and heater apparatus for exhaust treatment systems Shyan-Cherng Huang 2021-03-30 $253,399,000
10927740 System for regulating exhaust emissions Shyan-Cherng Huang, Taner Tuken, Thomas M. Harris 2021-02-23 $88,082,000