JL

John D. Leighton

AS Agere Systems: 8 patents #142 of 1,849Top 8%
VT Vtc: 4 patents #9 of 43Top 25%
AG Agere Systems Guardian: 3 patents #85 of 810Top 15%
AT AT&T: 2 patents #7,280 of 18,772Top 40%
UN Unknown: 2 patents #12,644 of 83,584Top 20%
AS Aveva Software: 1 patents #71 of 130Top 55%
Overall (All Time): #178,429 of 4,157,543Top 5%
23
Patents All Time

Issued Patents All Time

Patent #TitleCo-InventorsDate
12288369 Server systems and methods using vision AI for data collection Arijeet Majumdar, Shreeya Mody, Karan Zavar 2025-04-29
11044753 Method for collision avoidance in transfer of network packets Robert Baranowski 2021-06-22
10945289 System for collision avoidance in transfer of network packets Robert Baranowski 2021-03-09
7339760 Integrated bias and offset recovery amplifier Jeffrey A. Gleason, Scott M. O'Brien 2008-03-04
7019923 Pre-amplifier employing transistors having a diminished breakdown voltage and a disk drive and a Thevenin writer employing the same Hao Fang, Michael J. O'Brien, Scott M. O'Brien, Cameron C. Rabe 2006-03-28
6879456 Disk drive writer with active reflection cancellation Scott M. O'Brien, Robert Wimmer, Nameeta Krenz, Carl F. Elliott, Michael J. O'Brien +1 more 2005-04-12
6813110 Disk drive writer with capacitive boost Scott M. O'Brien, Robert Wimmer, Nameeta Krenz, Carl F. Elliott, Michael J. O'Brien +1 more 2004-11-02
6785071 Disk drive writer waveform induced precompensation Carl F. Elliott 2004-08-31
6707625 Dual-sense impedance-matched reader Carl F. Elliott, Jonathan P. Comeau 2004-03-16
6512646 Impedance-matched write circuit Raymond Barnett, Tuan V. Ngo 2003-01-28
6493161 Pulse-mode writer Carl F. Elliott, Sally A. Doherty 2002-12-10
6285221 Impedance-matched, voltage-mode H-bridge write drivers Eric Groen 2001-09-04
6275347 Current bias, current sense preamplifier for a magnetoresistive reader Tuan V. Ngo 2001-08-14
6256161 Echo cancellation for disk drive read circuit Sally A. Doherty 2001-07-03
6236246 Voltage-mode boosting circuit for write driver Tuan V. Ngo 2001-05-22
6121800 Impedance matched, voltage-mode H-bridge write drivers Eric Groen 2000-09-19
5942934 On-chip regulator providing good high frequency rejection and noise filtering from the supply Tuan V. Ngo 1999-08-24
5821148 Method of fabricating a segmented emitter low noise transistor John S. Shier 1998-10-13
5723897 Segmented emitter low noise transistor John S. Shier 1998-03-03
5721484 Power supply filter with active element assist Tuan V. Ngo 1998-02-24
4404439 Method and construction for vehicle brake pedal and switch assembly 1983-09-13
4300409 Resilient lever assembly 1981-11-17
4297550 Method and construction for vehicle brake pedal and switch assembly 1981-10-27