Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025
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David P. Rossum — 3 Patents in 2021

KEKnowles Electronics: 1 patents #28 of 62Top 50%
Santa Cruz, CA: #60 of 345 inventorsTop 20%
California: #8,414 of 66,859 inventorsTop 15%
Overall (2021): #85,789 of 548,734Top 20%
3 Patents 2021

Issued Patents 2021

Showing 1–3 of 3 patents

Patent #TitleCo-InventorsDateApprox Value ⓘ
11202147 Audio filter with through-zero linearly variable resonant frequency 2021-12-14
11087732 Oscillatory timbres for musical synthesis through synchronous ring modulation 2021-08-10
11029914 Multi-core audio processor with phase coherency Erick Alvarado 2021-06-08 $9,985,000