SS

Sigfrid D. Soli

📍 Sierra Madre, CA: #5 of 27 inventorsTop 20%
🗺 California: #7,487 of 41,698 inventorsTop 20%
Overall (2011): #66,647 of 364,097Top 20%
2
Patents 2011

Issued Patents 2011

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
7965853 Band-limited adaptive feedback canceller for hearing aids Shawn X. Gao, Hsiang-Feg Chi 2011-06-21
7965854 Band-limited adaptive feedback canceller for hearing aids Shawn X. Gao, Hsiang-Feg Chi 2011-06-21