David J. Petchonka

UN Unknown: 1 patents #29,356 of 83,584Top 40%

📍 Fairfield, ME: #6 of 10 inventorsTop 60%

🗺 Maine: #2,311 of 4,281 inventorsTop 55%

Overall (All Time): #3,665,195 of 4,157,543Top 90%

Patents All Time

Issued Patents All Time

Showing 1–1 of 1 patents

Patent #	Title	Co-Inventors	Date
D415763	Headphone	—	1999-10-26