De Fu Li has been granted 10 US patents while listed as an inventor at Cisco . The first was granted in 2008 and the most recent in July 2025. De Fu Li ranks #481,000 of 4,157,543 US inventors in our database (top 11.6%). Patent records list De Fu Li in Denver, CO, US.
Patents per Year Patents granted per year, 2008 to 2025 Bar chart with a peak of 2 patents in 2010. peak 2 2008: 1 patents 2008 2010: 2 patents 2010 2012: 2 patents 2012 2016: 2 patents 2016 2023: 1 patents 2023 2025: 2 patents 2025
Issued Patents All Time
Profile Widget
Showing 1–10 of 10 patents
Patent # Title Co-Inventors Date Approx Value ⓘ
12375880 Methods and systems for determining signal leaks in a network Daniel Rice , John Chrostowski , Benny Lewandowski , Robert Gaydos 2025-07-29
12267247 Packet replication and usage monitoring in a network environment Carl Klatsky , Jason Combs , Aju Francis Kalarickal , Jimit Salvi , Basil Baby +1 more 2025-04-01
11758362 Methods and systems for determining signal leaks in a network Daniel Rice , John Chrostowski , Benny Lewandowski , Robert Gaydos 2023-09-12
$84,565,000
9503180 Interference detection and avoidance in a telecommunication network Hang Jin , Tong Liu , Pawel Sowinski , John Skrobko 2016-11-22
$27,280,000
9237116 Network system time domain re-stamping Xuan Wang , Jingfeng Zhang , Jie Meng , Wenwen Dong , Yong Lu 2016-01-12
$21,630,000
8201207 Apparatus and methods for moving cable modems between upstream channels James An , Hui Sun , Keil Brewer , John J. Downey , Chrisanto Leano 2012-06-12
$24,731,000
8134921 CMTS upstream channel bandwidth scheduler Robert Goguen , Pawel Sowinski , Nicos Achilleoudis 2012-03-13
$47,449,000
7839773 Modem timing offset compensation for line card redundancy failover Pawel Sowinski , James An , Robert Goguen 2010-11-23
$22,543,000
7801040 Node registration technique implemented in access networks Hemant Singh , Mark E. Millet 2010-09-21
$22,406,000
7395309 Modem activity detection Gary M. Lewis , Nathan R. Melhorn 2008-07-01
$75,027,000
