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 51–75 of 193 patents

Patent #TitleCo-InventorsDate
10283147 Write transducers having high moment layer Robert G. Biskeborn, Robert E. Fontana, Jr. 2019-05-07
10269386 Magnetic tape abrasivity measurement Robert G. Biskeborn 2019-04-23
10262684 Tape head formed with high accuracy tape bearing surface length definition process Robert G. Biskeborn 2019-04-16
10229705 Shorting tolerant tunnel valve head and circuit Robert G. Biskeborn, W. Stanley Czarnecki, Jason Liang 2019-03-12
10204647 High accuracy tape bearing surface length definition process for tape head fabrication Robert G. Biskeborn 2019-02-12
10199058 Method of forming magnetic recording head having protected reader sensors and near zero recession writer poles Robert G. Biskeborn, W. Stanley Czarnecki, Philipp Herget 2019-02-05
10176831 Tunnel valve read sensor with crystalline alumina tunnel barrier deposited using room temperature techniques Robert G. Biskeborn, Teya Topuria 2019-01-08
10170138 Tape apparatus having an array of write transducers each having at least three layers of coils Robert G. Biskeborn, Robert E. Fontana, Jr. 2019-01-01
10170139 Magnetic recording head having protected reader sensors and near zero recessed write poles Robert G. Biskeborn, Jason Liang, Andrew C. Ting 2019-01-01
10121498 Beaked write transducer Robert G. Biskeborn 2018-11-06
10121502 Magnetic read head having a CPP MR sensor electrically isolated from a top shield Robert G. Biskeborn, Robert E. Fontana, Jr., Jason Liang 2018-11-06
10115417 Electrically conductive magnetic shield laminate structure for contact recording sensor Robert G. Biskeborn, Andrew C. Ting 2018-10-30
10109310 Tape head having sub-ambient channel and methods of manufacture Robert G. Biskeborn 2018-10-23
10079034 Mass production of multichannel current perpendicular to plane head modules via preferred milling Robert G. Biskeborn 2018-09-18
10068591 Head having wrap-controlled flexible media interface Robert G. Biskeborn, Jason Liang 2018-09-04
10026427 Tunnel magnetoresistive sensor having conductive ceramic layers Robert G. Biskeborn, Philip M. Rice, Teya Topuria 2018-07-17
10014022 Flexible media burnishing apparatus and method Robert G. Biskeborn, Gary M. Decad, Jason Liang 2018-07-03
10014015 Current perpendicular-to-plane sensors having hard spacers Robert G. Biskeborn, Robert E. Fontana, Jr., Jason Liang 2018-07-03
10014014 Magnetic recording apparatus having circuits with differing tunnel valve sensors and about the same resistance Robert G. Biskeborn, Robert E. Fontana, Jr. 2018-07-03
10014010 Apparatus having self-healing current-perpendicular-to-plane read head Robert G. Biskeborn, Andrew C. Ting 2018-07-03
10008221 Multichannel data storage apparatus having abrasion resistant barrier Robert G. Biskeborn 2018-06-26
9997180 Hybrid dielectric gap liner and magnetic shield liner Robert G. Biskeborn 2018-06-12
9990944 Tunnel valve magnetic tape head for multichannel tape recording Robert G. Biskeborn, Robert E. Fontana, Jr. 2018-06-05
9966237 System and method for differential etching Robert G. Biskeborn, Cherngye Hwang, Andrew C. Ting 2018-05-08
9947348 Tunnel magnetoresistive sensor having leads supporting three-dimensional current flow Robert G. Biskeborn, Robert E. Fontana, Jr. 2018-04-17