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

Robert U. Liu — 4 Patents

Apple: 4 patents #6,401 of 18,612Top 35%
San Jose, CA: #12,472 of 32,062 inventorsTop 40%
California: #126,026 of 386,348 inventorsTop 35%
Overall (All Time): #1,080,739 of 4,157,543Top 30%
4 Patents All Time
Robert U. Liu has been granted 4 US patents while listed as an inventor at Apple. The first was granted in 2022 and the most recent in September 2025. Robert U. Liu ranks #1,080,739 of 4,157,543 US inventors in our database (top 26.0%). Patent records list Robert U. Liu in San Jose, CA, US.

Issued Patents All Time

Showing 1–4 of 4 patents

Patent #TitleCo-InventorsDateApprox Value ⓘ
12411558 Keyboard accessory for electronic device Santhana K. Balaji, Jaime G. Chavez Ruiz Garza, Blake R. Marshall, Chen Zheng, Ramon Villar Ramirez +5 more 2025-09-09
11997777 Electrostatic discharge robust design for input device Daniel J. Bechstein, Mohammadali Khorrami, Vipin Ayanoor-Vitikkate, Blake R. Marshall, Zhibin Wang +2 more 2024-05-28 $205,493,000
11526240 Reducing sensitivity to leakage variation for passive stylus Daniel J. Bechstein, Ullas Pazhayaveetil, Jason Hu, Rexford J. Garland, John Stephen Smith +1 more 2022-12-13 $195,063,000
11360616 Stylus with touch input and compressive force sensors Robert M. Proie, Wing Kong Low, Nan Wang 2022-06-14 $183,231,000