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

Zhengran Li — 3 Patents

Amazon: 2 patents #7,232 of 19,158Top 40%
ZOZoran: 1 patents #83 of 200Top 45%
Campbell, CA: #1,056 of 2,187 inventorsTop 50%
California: #150,760 of 386,348 inventorsTop 40%
Overall (All Time): #1,328,092 of 4,157,543Top 35%
3 Patents All Time
Zhengran Li has been granted 3 US patents while listed as an inventor at Amazon. The first was granted in 2006 and the most recent in October 2024. Zhengran Li ranks #1,328,092 of 4,157,543 US inventors in our database (top 31.9%). Patent records list Zhengran Li in Campbell, CA, US.

Patents per Year

Patents granted per year, 2006 to 2024Bar chart with a peak of 1 patents in 2006.peak 12006: 1 patents20062023: 1 patents20232024: 1 patents2024

Issued Patents All Time

Showing 1–3 of 3 patents

Patent #TitleCo-InventorsDateApprox Value ⓘ
12125489 Speech recognition using multiple voice-enabled devices Sahil Puri, Zhan Xu, Oliver Sinsik Chiu, Sembhayya Gollakota, Bruno Dufour 2024-10-22 $353,759,000
11699444 Speech recognition using multiple voice-enabled devices Sahil Puri, Zhan Xu, Oliver Sinsik Chiu, Sembhayya Gollakota, Bruno Dufour 2023-07-11 $588,772,000
6999826 Apparatus and method for improved PC audio quality Jian Zhou, Jianxin Liu 2006-02-14 $9,929,000