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

Andrew J. Walker — 105 Patents

SMSpin Memory: 19 patents #11 of 49Top 25%
MSMatrix Semiconductor: 15 patents #8 of 55Top 15%
Cypress Semiconductor: 15 patents #108 of 1,852Top 6%
S3Sandisk 3D: 15 patents #29 of 180Top 20%
I(Integrated Silicon Solution, (Cayman): 11 patents #3 of 36Top 9%
DEDexcom: 6 patents #183 of 397Top 50%
SCSchiltron: 5 patents #1 of 1Top 100%
U.S. Philips: 4 patents #1,253 of 8,851Top 15%
SMSilicon Light Machines: 2 patents #41 of 89Top 50%
ONonsemi: 1 patents #1,116 of 1,901Top 60%
CICiena: 1 patents #757 of 1,406Top 55%
STSpin Transfer Technologies: 1 patents #16 of 25Top 65%
Hitachi: 1 patents #17,777 of 28,497Top 65%
STSandisk Technologies: 1 patents #1,462 of 394Top 375%
Mountain View, CA: #49 of 11,022 inventorsTop 1%
California: #2,061 of 386,348 inventorsTop 1%
Overall (All Time): #13,163 of 4,157,543Top 1%
105 Patents All Time
Andrew J. Walker has been granted 105 US patents while listed as an inventor at Spin Memory. The first was granted in 1983 and the most recent in November 2025. Andrew J. Walker ranks #13,163 of 4,157,543 US inventors in our database (top 0.32%). Patent records list Andrew J. Walker in Mountain View, CA, US.

Patents per Year

Patents granted per year, 1983 to 2024Bar chart with a peak of 11 patents in 2019.peak 111983: 1 patents19831994: 1 patents1995: 1 patents1998: 2 patents19981999: 1 patents2000: 1 patents2002: 1 patents20022003: 2 patents2004: 2 patents2005: 8 patents20052006: 6 patents2007: 4 patents2008: 5 patents20082009: 10 patents2010: 6 patents2011: 2 patents20112012: 5 patents2014: 4 patents2015: 2 patents20152016: 3 patents2017: 1 patents2018: 1 patents20182019: 11 patents2020: 5 patents2021: 4 patents20212022: 6 patents2023: 5 patents2024: 3 patents2024

Issued Patents All Time

Showing 1–25 of 105 patents

Patent #TitleCo-InventorsDateApprox Value ⓘ
12484294 Vertical fin-based field effect transistor (FinFET) with neutralized fin tips Subhash Srinivas Pidaparthi, Clifford Drowley, Shahin Sharifzadeh, Andrew P. Edwards, Francis K. Chai 2025-11-25
12475138 Systems and methods for data migration Mark Burch, Tom Hollander, David Hastwell, Poonam Meghnani 2025-11-18
12155204 Method and system for fin-based voltage clamp Clifford Drowley, Subhash Srinivas Pidaparthi, Andrew P. Edwards, Shahin Sharifzadeh, Joseph S. Tandingan 2024-11-26 $56,716,000
12069964 Three dimensional perpendicular magnetic tunnel junction with thin film transistor array Kuk-Hwan Kim, Dafna Beery, Amitay Levi 2024-08-20
11997483 Systems and methods for processing and transmitting sensor data Kenneth San Vicente, Indrawati Gauba, Siddharth Waichal 2024-05-28 $217,725,000
11842269 AI enabled sensor data acquisition Joydeep Acharya 2023-12-12
11688649 Compact and efficient CMOS inverter Amitay Levi, Dafna Beery 2023-06-27
11626407 DRAM with selective epitaxial cell transistor Dafna Beery, Peter Cuevas, Amitay Levi 2023-04-11
11600769 High density spin orbit torque magnetic random access memory Mustafa Pinarbasi, Dafna Beery 2023-03-07
11545524 Selector transistor with continuously variable current drive Dafna Beery, Peter Cuevas, Amitay Levi 2023-01-03
11444123 Selector transistor with metal replacement gate wordline Dafna Beery, Peter Cuevas, Amitay Levi 2022-09-13
11417829 Three dimensional perpendicular magnetic tunnel junction with thin film transistor array Kuk-Hwan Kim, Dafna Beery, Amitay Levi 2022-08-16
11329048 DRAM with selective epitaxial transistor and buried bitline Dafna Beery, Peter Cuevas, Amitay Levi 2022-05-10
11302697 DRAM with selective epitaxial cell transistor Dafna Beery, Peter Cuevas, Amitay Levi 2022-04-12
11302586 Compact and efficient CMOS inverter Amitay Levi, Dafna Beery 2022-04-12
11222970 Perpendicular magnetic tunnel junction memory cells having vertical channels Kuk-Hwan Kim, Dafna Beery, Amitay Levi 2022-01-11
10957370 Integration of epitaxially grown channel selector with two terminal resistive switching memory element Dafna Beery, Amitay Levi 2021-03-23
10937479 Integration of epitaxially grown channel selector with MRAM device Dafna Beery, Amitay Levi 2021-03-02
10930703 High density MRAM integration Kuk-Hwan Kim, Dafna Beery, Marcin Gajek, Michail Tzoufras, Kadriye Deniz Bozdag +2 more 2021-02-23
10916582 Vertically-strained silicon device for use with a perpendicular magnetic tunnel junction (PMTJ) Kuk-Hwan Kim, Dafna Beery, Amitay Levi 2021-02-09
10854255 Vertical selector stt-MRAM architecture Adrian E. Ong, Dafna Beery 2020-12-01
10840298 Vertical selector STT-MRAM architecture Adrian E. Ong, Dafna Beery 2020-11-17
10686009 High density MRAM integration Kuk-Hwan Kim, Dafna Beery, Marcin Gajek, Michail Tzoufras, Kadriye Deniz Bozdag +2 more 2020-06-16
10658425 Methods of forming perpendicular magnetic tunnel junction memory cells having vertical channels Kuk-Hwan Kim, Dafna Beery, Amitay Levi 2020-05-19
10629649 Method of making a three dimensional perpendicular magnetic tunnel junction with thin-film transistor Kuk-Hwan Kim, Dafna Beery, Amitay Levi 2020-04-21