Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025
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Xiaofu Ma — 3 Patents

Amazon: 3 patents #5,214 of 19,158Top 30%
San Mateo, CA: #1,632 of 3,727 inventorsTop 45%
California: #150,760 of 386,348 inventorsTop 40%
Overall (All Time): #1,328,092 of 4,157,543Top 35%
3 Patents All Time
Xiaofu Ma has been granted 3 US patents while listed as an inventor at Amazon. The first was granted in 2021 and the most recent in April 2025. Xiaofu Ma ranks #1,328,092 of 4,157,543 US inventors in our database (top 31.9%). Patent records list Xiaofu Ma in San Mateo, CA, US.

Issued Patents All Time

Showing 1–3 of 3 patents

Patent #TitleCo-InventorsDateApprox Value ⓘ
12279190 Respiration monitoring based on noisy channel state information (CSI) data Feng Zhang, Piyush Tayal, Cong Phuoc Huynh, Xi Chen, Mohammed Rana Basheer +1 more 2025-04-15
11510028 Proximity detection using device-to-device communication links Qinghai Gao, Qiang Hu, Avinash Joshi, Piyush Tayal, QingYun Wei 2022-11-22 $199,036,000
11070945 Proximity detection using device-to-device communication links Qinghai Gao, Qiang Hu, Avinash Joshi, Piyush Tayal, QingYun Wei 2021-07-20 $240,804,000