Patent Leaderboard
USPTO Patent Rankings Data through Sept 30, 2025
TS

Theodore A. Schwarz

3M: 12 patents #1,318 of 11,543Top 15%
ARAdvanced Research: 12 patents #2 of 13Top 20%
IMImation: 7 patents #37 of 622Top 6%
MPMagnetic Peripherals: 2 patents #28 of 149Top 20%
IBM: 1 patents #44,794 of 70,183Top 65%
Saratoga, CA: #292 of 2,933 inventorsTop 10%
California: #14,433 of 386,348 inventorsTop 4%
Overall (All Time): #103,771 of 4,157,543Top 3%
34 Patents All Time

Issued Patents All Time

Showing 26–34 of 34 patents

Patent #TitleCo-InventorsDate
5331493 Bidirectional thin-film magnetoresistive tape head assembly 1994-07-19
5312644 Method of making a magnetoresistive head with integrated bias and magnetic shield layer Peter G. Bischoff, Chak M. Leung, Johnny C. Chen, Pradeep K. Thayamballi 1994-05-17
5311385 Magnetoresistive head with integrated bias and magnetic shield layer Peter G. Bischoff, Chak M. Leung, Johnny C. Chen, Pradeep K. Thayamballi 1994-05-10
5280402 Combined stepper motor and voice coil head positioning apparatus James S. Anderson, Noel L. Allen, Durkee B. Richards, Robert W. Tapani, Hung T. Tran +1 more 1994-01-18
5229895 Multi-track servo recording head assembly Robert J. Youngquist 1993-07-20
4863114 Magnetic tape cartridge identification Gary D. Moeller, Steven R. Seeman 1989-09-05
4647993 Rotary head recording system Edward L. Schwarz 1987-03-03
4636886 Rotary head recording system 1987-01-13
4255772 Read/write magnetic head assembly with magnetoresistive sensor Henry Perez 1981-03-10