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USPTO Patent Rankings Data through Dec 31, 2025
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James Ma — 4 Patents

NENelumbo: 2 patents #3 of 6Top 50%
Caltech: 1 patents #2,143 of 4,321Top 50%
Pasadena, CA: #879 of 3,212 inventorsTop 30%
California: #126,026 of 386,348 inventorsTop 35%
Overall (All Time): #1,080,739 of 4,157,543Top 30%
4 Patents All Time
James Ma has been granted 4 US patents while listed as an inventor at Nelumbo. The first was granted in 2017 and the most recent in December 2025. James Ma ranks #1,080,739 of 4,157,543 US inventors in our database (top 26.0%). Patent records list James Ma in Pasadena, CA, US.

Issued Patents All Time

Showing 1–4 of 4 patents

Patent #TitleCo-InventorsDate
12492839 Temperature and relative humidity controller Lance R. Brockway, David C. Walther 2025-12-09
11879657 Temperature and relative humidity controller Lance R. Brockway, David C. Walther 2024-01-23
11473807 Temperature and relative humidity controller Lance R. Brockway, David C. Walther 2022-10-18
9640746 High performance high temperature thermoelectric composites with metallic inclusions Sabah K. Bux, Jean-Pierre Fleurial, Vilupanur A. Ravi, Samad A. Firdosy, Kurt Star +1 more 2017-05-02

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