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USPTO Patent Rankings Data through Dec 31, 2025
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Roy Lambertson — 21 Patents

USUnity Semiconductor: 11 patents #16 of 55Top 30%
HLHefei Reliance Memory Limited: 4 patents #17 of 28Top 65%
ACActel: 3 patents #69 of 156Top 45%
XIXicor: 3 patents #8 of 24Top 35%
Los Altos, CA: #558 of 3,651 inventorsTop 20%
California: #27,449 of 386,348 inventorsTop 8%
Overall (All Time): #201,324 of 4,157,543Top 5%
21 Patents All Time
Roy Lambertson has been granted 21 US patents while listed as an inventor at Unity Semiconductor. The first was granted in 1996 and the most recent in June 2023. Roy Lambertson ranks #201,324 of 4,157,543 US inventors in our database (top 4.8%). Patent records list Roy Lambertson in Los Altos, CA, US.

Issued Patents All Time

Showing 1–21 of 21 patents

Patent #TitleCo-InventorsDateApprox Value ⓘ
11672189 Two-terminal reversibly switchable memory device Darrell Rinerson, Christophe J. Chevallier, Wayne Kinney, John Sanchez, Lawrence Schloss +2 more 2023-06-06
11063214 Two-terminal reversibly switchable memory device Darrell Rinerson, Christophe J. Chevallier, Wayne Kinney, John Sanchez, Lawrence Schloss +2 more 2021-07-13
10680171 Two-terminal reversibly switchable memory device Darrell Rinerson, Christophe J. Chevallier, Wayne Kinney, John Sanchez, Lawrence Schloss +2 more 2020-06-09
10224480 Two-terminal reversibly switchable memory device Darrell Rinerson, Christophe J. Chevallier, Wayne Kinney, John Sanchez, Lawrence Schloss +2 more 2019-03-05
9831425 Two-terminal reversibly switchable memory device Darrell Rinerson, Christophe J. Chevallier, Wayne Kinney, John Sanchez, Lawrence Schloss +2 more 2017-11-28
9159913 Two-terminal reversibly switchable memory device Darrell Rinerson, Christophe J. Chevallier, Wayne Kinney, John Sanchez, Lawrence Schloss +2 more 2015-10-13
8565039 Array operation using a schottky diode as a non-ohmic selection device Lawrence Schloss 2013-10-22
8493771 Non-volatile memory device ion barrier Lawrence Schloss, Julie Casperson Brewer, Wayne Kinney, Rene Meyer 2013-07-23
8395928 Threshold device for a memory array Julie Casperson Brewer, Christophe J. Chevallier, Wayne Kinney, Darrell Rinerson, Lawrence Schloss 2013-03-12
8274817 Non volatile memory device ion barrier Lawrence Schloss, Julie Casperson Brewer, Wayne Kinney, Rene Meyer 2012-09-25
8254196 Array operation using a schottky diode as a non ohmic selection device Lawrence Schloss 2012-08-28
8045364 Non-volatile memory device ion barrier Lawrence Schloss, Rene Meyer, Wayne Kinney, Julie Casperson Brewer 2011-10-25
8031510 Ion barrier cap Lawrence Schloss, Rene Meyer, Wayne Kinney, Julie Casperson Brewer 2011-10-04
8027215 Array operation using a schottky diode as a non-ohmic isolation device Lawrence Schloss 2011-09-27
7995371 Threshold device for a memory array Darrell Rinerson, Julie Casperson Brewer, Christophe J. Chevallier, Wayne Kinney, Lawrence Schloss 2011-08-09
6713369 Antifuse incorporating tantalum nitride barrier layer Jeewika Ranaweera 2004-03-30 $4,859,000
6603142 Antifuse incorporating tantalum nitride barrier layer Jeewika Ranaweera 2003-08-05 $3,147,000
6529038 Antifuse programming method 2003-03-04 $4,995,000
6088269 Compact page-erasable EEPROM non-volatile memory 2000-07-11 $4,312,000
5835409 Compact page-erasable EEPROM non-volatile memory 1998-11-10 $986,000
5544103 Compact page-erasable eeprom non-volatile memory 1996-08-06 $2,760,000