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

Dafu Lou — 9 Patents

BCBce: 8 patents #14 of 182Top 8%
IBIrdeto B.V.: 1 patents #61 of 117Top 55%
Ottawa, CA: #760 of 6,399 inventorsTop 15%
Overall (All Time): #535,341 of 4,157,543Top 15%
9 Patents All Time
Dafu Lou has been granted 9 US patents while listed as an inventor at Bce. The first was granted in 2010 and the most recent in November 2024. Dafu Lou ranks #535,341 of 4,157,543 US inventors in our database (top 12.9%). Patent records list Dafu Lou in Ottawa, ON, CA.

Patents per Year

Patents granted per year, 2010 to 2024Bar chart with a peak of 3 patents in 2010.peak 32010: 3 patents20102011: 2 patents20112012: 1 patents20122014: 1 patents20142017: 1 patents20172024: 1 patents2024

Issued Patents All Time

Showing 1–9 of 9 patents

Patent #TitleCo-InventorsDateApprox Value ⓘ
12149608 Method and apparatus for implementing a white-box cipher Tingting Lin, Manfred von Willich 2024-11-19
9755825 Device authentication and secure channel management for peer-to-peer initiated communications William G. O'Brien, Tet Hin Yeap 2017-09-05 $125,262,000
8762726 System and method for secure access Tet Hin Yeap, William G. O'Brien 2014-06-24 $113,912,000
8312279 Secure modem gateway concentrator William G. O'Brien, Tef Hin Yeap 2012-11-13 $105,853,000
7930412 System and method for secure access Tet Hin Yeap, William G. O'Brien 2011-04-19 $96,484,000
7904952 System and method for access control Tet Hin Yeap, William G. O'Brien 2011-03-08 $107,861,000
7861081 Security system and method Tet Hin Yeap, William G. O'Brien, Ren Xiaoli 2010-12-28 $109,577,000
7774602 Secure modem gateway concentrator William G. O'Brien, Tet Hin Yeap 2010-08-10 $108,797,000
7660575 Adapter for secure VoIP communications Tet Hin Yeap, William G. O'Brien, Xiaoli Ren 2010-02-09 $119,116,000