Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025
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Blake R. Marshall — 20 Patents

Apple: 19 patents #1,739 of 18,612Top 10%
San Jose, CA: #3,285 of 32,062 inventorsTop 15%
California: #29,208 of 386,348 inventorsTop 8%
Overall (All Time): #214,803 of 4,157,543Top 6%
20 Patents All Time
Blake R. Marshall has been granted 20 US patents while listed as an inventor at Apple. The first was granted in 2017 and the most recent in September 2025. Blake R. Marshall ranks #214,803 of 4,157,543 US inventors in our database (top 5.2%). Patent records list Blake R. Marshall in San Jose, CA, US.

Patents per Year

Patents granted per year, 2017 to 2025Bar chart with a peak of 4 patents in 2020.peak 42017: 1 patents20172018: 2 patents20182019: 2 patents20192020: 4 patents20202021: 2 patents20212022: 3 patents20222023: 2 patents20232024: 2 patents20242025: 2 patents2025

Issued Patents All Time

Showing 1–20 of 20 patents

Patent #TitleCo-InventorsDateApprox Value ⓘ
12411558 Keyboard accessory for electronic device Santhana K. Balaji, Jaime G. Chavez Ruiz Garza, Robert U. Liu, Chen Zheng, Ramon Villar Ramirez +5 more 2025-09-09
12210696 Electrostatic discharge protection of a power efficient stylus for an electronic device Daniel J. Bechstein, John Stephen Smith, Vipin Ayanoor-Vitikkate, Mohammadali Khorrami 2025-01-28
11997777 Electrostatic discharge robust design for input device Daniel J. Bechstein, Mohammadali Khorrami, Vipin Ayanoor-Vitikkate, Zhibin Wang, Ying Cao +2 more 2024-05-28 $205,493,000
11989358 Touch-based input for stylus Reza Nasiri Mahalati, Wing Kong Low, Izhar Bentov, Ashwin Kumar Asoka Kumar Shenoi, Henry N. Tsao +4 more 2024-05-21 $215,899,000
11755128 Stylus with compressive force sensor Alex J. Lehmann, Qiliang Xu, Nathaniel M. Parnell, Wesley W. Zuber, Henry N. Tsao +5 more 2023-09-12 $153,019,000
11670972 Electronic device having an inductive charging system Joel N. Ruscher, Marco Soldano, Liquan Tan, Todd K. Moyer, Reza Nasiri Mahalati +2 more 2023-06-06 $190,322,000
11526240 Reducing sensitivity to leakage variation for passive stylus Daniel J. Bechstein, Ullas Pazhayaveetil, Jason Hu, Robert U. Liu, Rexford J. Garland +1 more 2022-12-13 $195,063,000
11460933 Shield electrode for input device Daniel J. Bechstein, John Stephen Smith, Siddharth Shekar, Teera Songatikamas, Elvis M. Kibiti +6 more 2022-10-04 $219,253,000
11340716 Touch-based input for stylus Reza Nasiri Mahalati, Wing Kong Low, Izhar Bentov, Ashwin Kumar Asoka Kumar Shenoi, Henry N. Tsao +4 more 2022-05-24 $182,335,000
11061490 Capacitive wireless charging systems Bing Jiang, Indranil S. Sen, Liquan Tan, Reza Nasiri Mahalati, Yi Jiang +1 more 2021-07-13 $414,399,000
11031164 Attachment devices for inductive interconnection systems Florence W. Ow, Joel N. Ruscher, Liquan Tan, Aidan N. Zimmerman, Reza Nasiri Mahalati +6 more 2021-06-08 $378,421,000
10739871 Capacitive wireless charging systems Bing Jiang, Indranil S. Sen, Liquan Tan, Reza Nasiri Mahalati, Yi Jiang +1 more 2020-08-11 $147,060,000
10725515 Inductive interconnection system Florence W. Ow, Joel N. Ruscher, Liquan Tan, Aidan N. Zimmerman, Reza Nasiri Mahalati +6 more 2020-07-28 $157,336,000
10707627 Hybrid connector Reza Nasiri Mahalati, Liquan Tan, Florence W. Ow, Alex Chun Lap Yeung, John Raff +7 more 2020-07-07 $144,181,000
10585502 Touch sensor excitation using transformer Michael B. Nussbaum, Jason P. Marini, Li-Quan Tan 2020-03-10 $142,673,000
10241590 Capacitive keyboard having variable make points Liquan Tan 2019-03-26 $123,032,000
10198089 Active stylus precision tip Priyanka Bhandari, Li-Quan Tan, Reza Nasiri Mahalati, Aidan N. Zimmerman, Ryan P. Brooks +1 more 2019-02-05 $70,781,000
10025401 Active stylus ring electrode Priyanka Bhandari, Li-Quan Tan, Reza Nasiri Mahalati, Aidan N. Zimmerman, Ryan P. Brooks +1 more 2018-07-17 $111,105,000
9904379 Disabling stylus to prevent worn tip performance degradation and screen damage Apexit Shah, Ari Y. Benbasat, Li-Quan Tan, Priyanka Bhandari, Reza Nasiri Mahalati +1 more 2018-02-27 $145,349,000
9632591 Capacitive keyboard having variable make points Liquan Tan 2017-04-25 $59,408,000