Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025
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Defu Li — 2 Patents

Cisco: 1 patents #7,948 of 13,007Top 65%
Overall (All Time): #1,709,992 of 4,157,543Top 45%
2 Patents All Time
Defu Li has been granted 2 US patents while listed as an inventor at Cisco. The first was granted in 2012 and the most recent in January 2025. Defu Li ranks #1,709,992 of 4,157,543 US inventors in our database (top 41.1%). Patent records list Defu Li in Shunqing District, MA, CN.

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDateApprox Value ⓘ
12193380 Hormone-free culture method for citrus shoot tip Xiaoqiu Du, Ying He, Yue Liu, Guichuan Yang 2025-01-14
8111711 Multi-channel ranging for a cable modem Pawel Sowinski, Robert Goguen, Tong Liu, Alon Bernstein 2012-02-07 $30,931,000