Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025
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Chi Kit Chan — 4 Patents

Microsoft: 3 patents #13,486 of 40,388Top 35%
Bellevue, WA: #2,352 of 6,950 inventorsTop 35%
Washington: #23,275 of 76,902 inventorsTop 35%
Overall (All Time): #1,080,739 of 4,157,543Top 30%
4 Patents All Time
Chi Kit Chan has been granted 4 US patents while listed as an inventor at Microsoft. The first was granted in 2013 and the most recent in November 2025. Chi Kit Chan ranks #1,080,739 of 4,157,543 US inventors in our database (top 26.0%). Patent records list Chi Kit Chan in Bellevue, WA, US.

Issued Patents All Time

Showing 1–4 of 4 patents

Patent #TitleCo-InventorsDateApprox Value ⓘ
12458719 Air purifiers Ka Wai Jim, Lam Lung Yeung 2025-11-04
8972459 Data change tracking and event notification Kishore Chaliparambil, Imran Mohiuddin, Bryan Dove, Mehul Y. Shah, Umesh Madan +3 more 2015-03-03 $20,156,000
8818944 Data change tracking and event notification Kishore Chaliparambil, Imran Mohiuddin, Bryan Dove, Mehul Y. Shah, Umesh Madan +3 more 2014-08-26 $21,459,000
8418140 Serviceability and configuration management Jayaram R. Iyer, Gopal Parupudi, Mahmood G. Qadir, Naveen Reddy Karri, Anubhuti Manohar +4 more 2013-04-09 $13,653,000