Bart P. Billings

📍 Carlsbad, CA: #1,738 of 2,500 inventorsTop 70%

🗺 California: #247,236 of 386,348 inventorsTop 65%

Overall (All Time): #3,646,130 of 4,157,543Top 90%

Patents All Time

Issued Patents All Time

Showing 1–1 of 1 patents

Patent #	Title	Co-Inventors	Date
5889876	Hemispherical speaker system	—	1999-03-30