Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025
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Robert K. Chan — 7 Patents

Qualcomm: 5 patents #3,310 of 12,104Top 30%
KSKrh Thermal Systems: 2 patents #7 of 16Top 45%
Village of La Jolla, CA: #494 of 2,316 inventorsTop 25%
California: #83,669 of 386,348 inventorsTop 25%
Overall (All Time): #680,018 of 4,157,543Top 20%
7 Patents All Time
Robert K. Chan has been granted 7 US patents while listed as an inventor at Qualcomm. The first was granted in 1998 and the most recent in May 2019. Robert K. Chan ranks #680,018 of 4,157,543 US inventors in our database (top 16.4%). Patent records list Robert K. Chan in Village of La Jolla, CA, US.

Patents per Year

Patents granted per year, 1998 to 2019Bar chart with a peak of 2 patents in 2018.peak 21998: 1 patents19981999: 1 patents19992013: 1 patents20132016: 1 patents20162018: 2 patents20182019: 1 patents2019

Issued Patents All Time

Showing 1–7 of 7 patents

Patent #TitleCo-InventorsDateApprox Value ⓘ
10291310 Gap-based antenna measurement for antenna switch diversity Thawatt Gopal, Reza Shahidi 2019-05-14 $19,257,000
9961600 Techniques for employing antenna switched diversity in wireless communications Thawatt Gopal, Reza Shahidi, Sunil Kc, Qingxin Chen, Shivram Ramanathan Lnu +4 more 2018-05-01 $7,831,000
9935676 Opportunistic antenna switch diversity (ASDIV) in carrier aggregation Ashrafur Reza, Peyman Hesami, Ning He, Sagar Kakade 2018-04-03 $7,863,000
9468010 Apparatus and methods for facilitating tune-away operations in wireless communications systems Soumen Mitra, Ammar Kitabi, Aritra Ukil, Vijay Karthic Elangovan, Simei Du +4 more 2016-10-11 $12,750,000
8599749 Apparatus and method of searching multi-carrier active set pilots Gregory R. Lie, Lijun Lin, Manasi D. Gandhi 2013-12-03 $8,275,000
5975348 Vending machine with mechanised freezer door and failure control devices Paul T. Rudewicz, Thom Thomas, Mark A. Hopkins 1999-11-02
5799822 Vending machine including multiple failure control devices Paul T. Rudewicz, Thom Thomas, Mark A. Hopkins 1998-09-01