William L. Frederich

EA Eaton: 3 patents #934 of 3,708Top 30%

📍 Kenosha, WI: #234 of 686 inventorsTop 35%

🗺 Wisconsin: #13,258 of 40,088 inventorsTop 35%

Overall (All Time): #1,669,569 of 4,157,543Top 45%

Patents All Time

Issued Patents All Time

Showing 1–3 of 3 patents

Patent #	Title	Co-Inventors	Date
4800508	Frequency detector	—	1989-01-24
4768030	Switch interface method and apparatus	—	1988-08-30
4628460	Microprocessor controlled phase shifter	—	1986-12-09