FJ

Frederick J. Jeffers

Eastman Kodak: 42 patents #150 of 8,114Top 2%
CU Cummins-Allison: 3 patents #58 of 120Top 50%
ME Mednovus: 3 patents #8 of 10Top 80%
SP Spin Physics: 2 patents #5 of 15Top 35%
ET Eastman Technology: 1 patents #6 of 9Top 70%
IH Io-Mega Holding: 1 patents #177 of 308Top 60%
📍 Escondido, CA: #26 of 1,330 inventorsTop 2%
🗺 California: #7,415 of 386,348 inventorsTop 2%
Overall (All Time): #51,187 of 4,157,543Top 2%
52
Patents All Time

Issued Patents All Time

Showing 51–52 of 52 patents

Patent #TitleCo-InventorsDate
4306215 Thin magnetoresistive head 1981-12-15
4277806 Magnetic recording using recording media having temperature dependent coercivity Richard J. McClure 1981-07-07