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

Christopher Tsai — 6 Patents

ATAT&T: 6 patents #3,060 of 18,772Top 20%
Plano, TX: #1,148 of 4,842 inventorsTop 25%
Texas: #24,637 of 125,132 inventorsTop 20%
Overall (All Time): #779,687 of 4,157,543Top 20%
6 Patents All Time
Christopher Tsai has been granted 6 US patents while listed as an inventor at AT&T. The first was granted in 2001 and the most recent in September 2022. Christopher Tsai ranks #779,687 of 4,157,543 US inventors in our database (top 18.8%). Patent records list Christopher Tsai in Plano, TX, US.

Patents per Year

Patents granted per year, 2001 to 2022Bar chart with a peak of 2 patents in 2020.peak 22001: 1 patents20012018: 1 patents20182019: 1 patents20192020: 2 patents20202022: 1 patents2022

Issued Patents All Time

Showing 1–6 of 6 patents

Patent #TitleCo-InventorsDateApprox Value ⓘ
11449838 Predictive maintenance Anoop Viswanath, Abhay Dabholkar, Brad Ford, Mengling Hettinger, Kevin Reese +2 more 2022-09-20 $57,319,000
10692053 Predictive maintenance Anoop Viswanath, Abhay Dabholkar, Brad Ford, Mengling Hettinger, Kevin Reese +2 more 2020-06-23 $36,552,000
10613501 Method and apparatus for providing equipment maintenance via a network Anoop Viswanath, James Gavillet, Otis Jennings, Satya Vivek Kanakadandila, Weiping Liu +4 more 2020-04-07 $52,405,000
10248091 Method and apparatus for providing equipment maintenance via a network Anoop Viswanath, James Gavillet, Otis Jennings, Satya Vivek Kanakadandila, Weiping Liu +4 more 2019-04-02 $66,308,000
10096004 Predictive maintenance Anoop Viswanath, Abhay Dabholkar, Brad Ford, Mengling Hettinger, Kevin Reese +2 more 2018-10-09 $47,259,000
6192115 Obtaining information about a called telecommunications party Arthur R. Toy, Liane Toy Tsai 2001-02-20 $18,448,000