Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025
SL

Steven W. Longcor — 58 Patents

USUnity Semiconductor: 47 patents #6 of 55Top 15%
AMD: 5 patents #2,237 of 9,280Top 25%
HLHefei Reliance Memory Limited: 3 patents #19 of 28Top 70%
NTNexflash Technologies: 2 patents #10 of 21Top 50%
ISIntegrated Silicon Solution: 1 patents #55 of 80Top 70%
Mountain View, CA: #179 of 11,022 inventorsTop 2%
California: #6,228 of 386,348 inventorsTop 2%
Overall (All Time): #41,319 of 4,157,543Top 1%
58 Patents All Time
Steven W. Longcor has been granted 58 US patents while listed as an inventor at Unity Semiconductor. The first was granted in 1991 and the most recent in November 2022. Steven W. Longcor ranks #41,319 of 4,157,543 US inventors in our database (top 0.99%). Patent records list Steven W. Longcor in Mountain View, CA, US.

Issued Patents All Time

Showing 1–25 of 58 patents

Patent #TitleCo-InventorsDateApprox Value ⓘ
11502249 Memory element with a reactive metal layer Christophe J. Chevallier, Steve Kuo-Ren Hsia, Wayne Kinney, Darrell Rinerson, John Sanchez +2 more 2022-11-15
10833125 Memory element with a reactive metal layer Christophe J. Chevallier, Steve Kuo-Ren Hsia, Wayne Kinney, Darrell Rinerson, John Sanchez +2 more 2020-11-10
10340312 Memory element with a reactive metal layer Christophe J. Chevallier, Steve Kuo-Ren Hsia, Wayne Kinney, Darrell Rinerson, John Sanchez +2 more 2019-07-02
9806130 Memory element with a reactive metal layer Christophe J. Chevallier, Steve Kuo-Ren Hsia, Wayne Kinney, Darrell Rinerson, John Sanchez +2 more 2017-10-31
9570515 Memory element with a reactive metal layer Christophe J. Chevallier, Steve Kuo-Ren Hsia, Wayne Kinney, Darrell Rinerson, John Sanchez +2 more 2017-02-14
9159408 Memory element with a reactive metal layer Christophe J. Chevallier, Steve Kuo-Ren Hsia, Wayne Kinney, Darrell Rinerson, John Sanchez +2 more 2015-10-13
8675389 Memory element with a reactive metal layer Christophe J. Chevallier, Steve Kuo-Ren Hsia, Wayne Kinney, Darrell Rinerson, John Sanchez +2 more 2014-03-18
8611130 Method for fabricating multi-resistive state memory devices Darrell Rinerson, Christophe J. Chevallier, Steve Kuo-Ren Hsia, Wayne Kinney, John Sanchez +2 more 2013-12-17
8268667 Memory device using ion implant isolated conductive metal oxide Darrell Rinerson, Robin Cheung, David Hansen, Rene Meyer, Jonathan Bornstein +1 more 2012-09-18
8062942 Method for fabricating multi-resistive state memory devices Darrell Rinerson, Wayne Kinney, Edmond R. Ward, Steve Kuo-Ren Hsia, Christophe J. Chevallier +2 more 2011-11-22
8003511 Memory cell formation using ion implant isolated conductive metal oxide Darrell Rinerson, Jonathan Bornstein, Robin Cheung, David Hansen, Rene Meyer +1 more 2011-08-23
7889539 Multi-resistive state memory device with conductive oxide electrodes Darrell Rinerson, Wayne Kinney, Edmond R. Ward, Steve Kuo-Ren Hsia, Christophe J. Chevallier +2 more 2011-02-15
7884349 Selection device for re-writable memory Darrell Rinerson, Steve Kuo-Ren Hsia, Wayne Kinney, Edmond R. Ward, Christophe J. Chevallier 2011-02-08
7832090 Method of making a planar electrode Jonathan Bornstein, David Hansen 2010-11-16
7633790 Multi-resistive state memory device with conductive oxide electrodes Darrel Rinerson, Wayne Kinney, Edmond R. Ward, Steve Kuo-Ren Hsia, Christophe J. Chevallier +2 more 2009-12-15
7528405 Conductive memory stack with sidewall Darrell Rinerson, Steve Kuo-Ren Hsia, Christophe J. Chevallier 2009-05-05
7457147 Two terminal memory array having reference cells Darrell Rinerson, Christophe J. Chevallier 2008-11-25
7439082 Conductive memory stack with non-uniform width Darrell Rinerson, Steve Kuo-Ren Hsia 2008-10-21
7400006 Conductive memory device with conductive oxide electrodes Darrell Rinerson, Steve Kuo-Ren Hsia, Wayne Kinney 2008-07-15
7394679 Multi-resistive state element with reactive metal Darrell Rinerson, Wayne Kinney, Edmond R. Ward, Steve Kuo-Ren Hsia, Christophe J. Chevallier +2 more 2008-07-01
7382645 Two terminal memory array having reference cells Darrell Rinerson, Christophe J. Chevallier 2008-06-03
7382644 Two terminal memory array having reference cells Darrell Rinerson, Christophe J. Chevallier 2008-06-03
7330370 Enhanced functionality in a two-terminal memory array Darrell Rinerson, Christophe J. Chevallier, Edmond R. Ward, Robert Norman 2008-02-12
7326979 Resistive memory device with a treated interface Darrell Rinerson, Wayne Kinney, John Sanchez, Steve Kuo-Ren Hsia, Edmond R. Ward +1 more 2008-02-05
7227775 Two terminal memory array having reference cells Darrell Rinerson, Christophe J. Chevallier 2007-06-05