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

Calvin S. Lo — 193 Patents

IBM: 192 patents #172 of 70,183Top 1%
Globalfoundries: 1 patents #2,221 of 4,424Top 55%
Saratoga, CA: #15 of 2,933 inventorsTop 1%
California: #595 of 386,348 inventorsTop 1%
Overall (All Time): #3,645 of 4,157,543Top 1%
193 Patents All Time

Issued Patents All Time

Showing 26–50 of 193 patents

Patent #TitleCo-InventorsDate
10748573 Multichannel tape head module having mechanically settable transducer pitch Robert G. Biskeborn, Hugo E. Rothuizen 2020-08-18
10726868 Apparatus having an array of write transducers having a low friction interface Robert G. Biskeborn 2020-07-28
10679654 Head having wrap-controlled flexible media interface Robert G. Biskeborn, Jason Liang 2020-06-09
10657992 Tunnel valve magnetic tape head for multichannel tape recording Robert G. Biskeborn, Robert E. Fontana, Jr. 2020-05-19
10657989 Tape head module having recessed portion(s) and air aperture(s) for providing an air bearing between a tape and the module Robert G. Biskeborn 2020-05-19
10650846 Apparatus having recessed TMR read sensor structures for robust head-tape interface Robert G. Biskeborn 2020-05-12
10650848 Write transducers having high moment layer Robert G. Biskeborn, Robert E. Fontana, Jr. 2020-05-12
10643654 Methods for selecting wrap angle for inducing tape tenting above transducer Robert G. Biskeborn, W. Stanley Czarnecki 2020-05-05
10643653 Methods for selecting wrap angle for inducing tape tenting above transducer Robert G. Biskeborn, W. Stanley Czarnecki 2020-05-05
10614836 Polycrystalline dielectric coating for cobalt iron alloy thin films Robert G. Biskeborn, Teya Topuria 2020-04-07
10614837 Tape head having a portion of a bearing surface slot that defines a skiving edge Robert G. Biskeborn 2020-04-07
10607635 Abrasion test methods and devices Robert G. Biskeborn, Jason Liang 2020-03-31
10586561 Tunnel magnetoresistive sensor having conductive ceramic layers Robert G. Biskeborn, Philip M. Rice, Teya Topuria 2020-03-10
10580450 Tape head having sub-ambient channel and methods of manufacture Robert G. Biskeborn 2020-03-03
10529363 Beaked write transducer Robert G. Biskeborn 2020-01-07
10490211 Tape head module having recessed portion to provide an air bearing between a tape medium and a tape bearing surface of the module Robert G. Biskeborn 2019-11-26
10418059 Methods for selecting wrap angle for inducing tape tenting above transducer Robert G. Biskeborn, W. Stanley Czarnecki 2019-09-17
10395684 Protective layer for mitigating protruding defects in magnetic tape recording media Robert G. Biskeborn 2019-08-27
10395676 Magnetic recording apparatus having circuits with differing tunnel valve sensors and about the same resistance Robert G. Biskeborn, Robert E. Fontana, Jr. 2019-08-27
10388308 Tunnel magnetoresistive sensor having leads supporting three dimensional current flow Robert G. Biskeborn, Robert E. Fontana, Jr. 2019-08-20
10360933 Hybrid dielectric gap liner and magnetic shield liner Robert G. Biskeborn 2019-07-23
10354679 Magnetic recording module having tunnel valve sensors with dissimilar tunnel barrier resistivities Robert G. Biskeborn, Robert E. Fontana, Jr. 2019-07-16
10332550 Tunnel magnetoresistive sensor having stabilized magnetic shield and dielectric gap sensor Robert G. Biskeborn, Robert E. Fontana, Jr. 2019-06-25
10297275 Magnetic recording module having differing tunnel valve sensors Robert G. Biskeborn, Robert E. Fontana, Jr. 2019-05-21
10283147 Write transducers having high moment layer Robert G. Biskeborn, Robert E. Fontana, Jr. 2019-05-07