Peter L. Madaffari

IP Industrial Research Products: 2 patents #2 of 2Top 100%

📍 Elgin, IL: #1 of 32 inventorsTop 4%

🗺 Illinois: #289 of 3,813 inventorsTop 8%

Overall (1989): #18,481 of 140,708Top 15%

Patents 1989

Issued Patents 1989

Showing 1–2 of 2 patents

Patent #	Title	Co-Inventors	Date
4837833	Microphone with frequency pre-emphasis channel plate	—	1989-06-06
4815560	Microphone with frequency pre-emphasis	—	1989-03-28