Patent Leaderboard
USPTO Patent Rankings Data through Sept 30, 2025
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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 101–125 of 193 patents

Patent #TitleCo-InventorsDate
9704514 High accuracy bearing surface slotting process for tape head fabrication Robert G. Biskeborn 2017-07-11
9704516 Shorting-resistant current perpendicular to plane sensors Robert G. Biskeborn 2017-07-11
9666219 Tape media kiss-contact read verification Robert G. Biskeborn, Tak H. Wong, Xu Yan 2017-05-30
9659583 Magnetic recording head having protected reader sensors and near zero recession writer poles Robert G. Biskeborn, W. Stanley Czarnecki, Philipp Herget 2017-05-23
9659581 Module with coating for abrasion testing Robert G. Biskeborn, Jason Liang 2017-05-23
9607639 Magnetic head and system having offset arrays Robert G. Biskeborn, Philipp Herget 2017-03-28
9607635 Current perpendicular-to-plane sensors having hard spacers Robert G. Biskeborn, Robert E. Fontana, Jr., Jason Liang 2017-03-28
9595276 Magnetic head and system having offset arrays Robert G. Biskeborn, Philipp Herget 2017-03-14
9576596 Miniskirt tape head having quasi-statically tilted transducer arrays Robert G. Biskeborn 2017-02-21
9558776 Durable coating for magnetic tape recording media Robert G. Biskeborn, Gary M. Decad 2017-01-31
9508367 Tunnel magnetoresistive sensor having conductive ceramic layers Robert G. Biskeborn, Philip M. Rice, Teya Topuria 2016-11-29
9502077 Shingle verify archive appliance Robert G. Biskeborn 2016-11-22
9472213 Magnetic recording head having protected reader sensors and near zero recessed write poles Robert G. Biskeborn, Jason Liang, Andrew C. Ting 2016-10-18
9472210 Miniskirt tape head having quasi-statically tilted transducer arrays Robert G. Biskeborn 2016-10-18
9449628 Quasi-statically oriented, bi-directional tape recording head Robert G. Biskeborn 2016-09-20
9449620 Magnetic recording head having protected reader sensors and near zero recession writer poles Robert G. Biskeborn, W. Stanley Czarnecki, Philipp Herget 2016-09-20
9449622 Differing magnetic read sensors on a magnetic head Robert G. Biskeborn, Peter VanderSalm Koeppe 2016-09-20
9418682 Universal magnetic recording head chip Robert G. Biskeborn, Kevin Luong 2016-08-16
9418683 Mass production of multichannel current perpendicular to plane head modules via preferred milling Robert G. Biskeborn 2016-08-16
9406319 Electrically non-conductive magnetic shield laminate structure for contact recording sensor Robert G. Biskeborn, Andrew C. Ting 2016-08-02
9384764 Electrically conductive magnetic shield laminate structure for contact recording sensor Robert G. Biskeborn, Andrew C. Ting 2016-07-05
9355664 Tape recording head having non-parallel gaps and dissimilar transducer pitches Robert G. Biskeborn 2016-05-31
9355665 Quasi-statically tilted head having offset reader/writer transducer pairs Robert G. Biskeborn 2016-05-31
9355678 Magnetic storage device with multiple read element arrays to determine quality of recorded data Robert G. Biskeborn, Gary M. Decad 2016-05-31
9349395 System and method for differential etching Robert G. Biskeborn, Cherngye Hwang, Andrew C. Ting 2016-05-24