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USPTO Patent Rankings Data through Dec 31, 2025
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Wing Cheong Chau — 10 Patents

3C3Com: 7 patents #126 of 1,250Top 15%
Cisco: 3 patents #4,245 of 13,007Top 35%
Los Altos, CA: #1,032 of 3,651 inventorsTop 30%
California: #61,378 of 386,348 inventorsTop 20%
Overall (All Time): #481,000 of 4,157,543Top 15%
10 Patents All Time
Wing Cheong Chau has been granted 10 US patents while listed as an inventor at 3Com. The first was granted in 1998 and the most recent in March 2011. Wing Cheong Chau ranks #481,000 of 4,157,543 US inventors in our database (top 11.6%). Patent records list Wing Cheong Chau in Los Altos, CA, US.

Patents per Year

Patents granted per year, 1998 to 2011Bar chart with a peak of 3 patents in 2000.peak 31998: 1 patents19982000: 3 patents20002001: 3 patents20012004: 1 patents20042007: 1 patents20072011: 1 patents2011

Issued Patents All Time

Showing 1–10 of 10 patents

Patent #TitleCo-InventorsDateApprox Value ⓘ
7916653 Measurement of round-trip delay over a network Scott Firestone, Randall B. Baird, Shantanu Sarkar 2011-03-29 $34,232,000
7233600 Method and apparatus for dynamic DSP resource management Madhu Grandhi 2007-06-19 $66,487,000
6694373 Method and apparatus for hitless switchover of a voice connection in a voice processing module Ramesh Sastry, Rangaraju Iyengar, Kirk Dow Sanders, Raffaello Pardini 2004-02-17 $143,478,000
6278705 Integrated architecture to support a single system image across multiple network access servers Darren Leu, Tze-jian Liu, Chandy Nilakantan, Jeffrey Kaiping Pao, Tsyr-Shya Joe Sun +2 more 2001-08-21 $6,965,000
6256305 Architecture to support a single system image across multiple network access servers Darren Leu, Tze-jian Liu, Chandy Nilakantan, Jeffrey Kaiping Pao, Tsyr-Shya Joe Sun +2 more 2001-07-03 $4,252,000
6233232 Supporting multilink connections across multiple network access servers Darren Leu, Tze-jian Liu, Chandy Nilakantan, Jeffrey Kaiping Pao, Tsyr-Shya Joe Sun +2 more 2001-05-15 $6,869,000
6147987 Supporting load sharing across multiple network access servers Darren Leu, Tze-jian Liu, Chandy Nilakantan, Jeffrey Kaiping Pao, Tsyr-Shya Joe Sun +2 more 2000-11-14 $12,729,000
6026085 Architecture to support a single system image across multiple network access servers Darren Leu, Tze-jian Liu, Chandy Nilakantan, Jeffrey Kaiping Pao, Tsyr-Shya Joe Sun +2 more 2000-02-15 $116,830,000
6011910 Supporting authentication across multiple network access servers Darren Leu, Tze-jian Liu, Chandy Nilakantan, Jeffrey Kaiping Pao, Tsyr-Shya Joe Sun +2 more 2000-01-04 $117,765,000
5805827 Distributed signal processing for data channels maintaining channel bandwidth Dar-Ren Leu 1998-09-08 $40,609,000