Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025
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Nan Chen — 38 Patents

Qualcomm: 36 patents #653 of 12,104Top 6%
San Diego, CA: #960 of 23,606 inventorsTop 5%
California: #12,412 of 386,348 inventorsTop 4%
Overall (All Time): #84,675 of 4,157,543Top 3%
38 Patents All Time
Nan Chen has been granted 38 US patents while listed as an inventor at Qualcomm. The first was granted in 2005 and the most recent in November 2025. Nan Chen ranks #84,675 of 4,157,543 US inventors in our database (top 2.0%). Patent records list Nan Chen in San Diego, CA, US.

Patents per Year

Patents granted per year, 2005 to 2023Bar chart with a peak of 6 patents in 2011.peak 62005: 1 patents20052006: 1 patents2010: 2 patents20102011: 6 patents2012: 5 patents20122013: 1 patents2014: 3 patents20142015: 2 patents2016: 3 patents20162017: 5 patents2018: 3 patents20182019: 3 patents2021: 1 patents20212023: 1 patents2023

Issued Patents All Time

Showing 1–25 of 38 patents

Patent #TitleCo-InventorsDateApprox Value ⓘ
12481316 Foldable apparatus, foldable substrate, and methods of making Shinu Baby, Timothy Michael Gross, Jason Thomas Harris, Dhananjay Joshi, Yousef Kayed Qaroush +2 more 2025-11-25
11769740 Detection of laser-based security attacks Alan Lewis, Zhengming Fu, Adam Polak, Laura FUENTES, Gregory Bullard +1 more 2023-09-26 $13,508,000
11145608 Detection of laser-based security attacks Alan Lewis, Zhengming Fu, Adam Polak, Laura FUENTES, Gregory Bullard +1 more 2021-10-12 $22,617,000
10498219 Adjusting source voltage based on operating voltage response Lingyun Wang, Yuan Pan, Junmou Zhang, Mohamed Waleed Allam 2019-12-03 $15,799,000
10382034 Apparatus and method for sensing distributed load currents provided by power gating circuit Guoan Zhong, Junmou Zhang 2019-08-13 $16,216,000
10242720 Dual sensing current latched sense amplifier Ritu Chaba 2019-03-26 $7,875,000
9916904 Reducing leakage current in a memory device Mehdi Hamidi Sani, Ritu Chaba 2018-03-13 $18,649,000
9903892 Low power small area oscillator-based ADC Chuang Zhang, Junmou Zhang 2018-02-27 $14,464,000
9858217 Within-die special oscillator for tracking SRAM memory performance with global process variation, voltage and temperature Percy Tehmul Marfatia, Rajagopal Narayanan, Shih-Hsin Jason Hu 2018-01-02 $10,891,000
9816872 Low power low cost temperature sensor Junmou Zhang, Chuang Zhang 2017-11-14 $8,697,000
9671438 High-current sensing scheme using drain-source voltage Chuang Zhang, Zhengming Fu 2017-06-06 $5,960,000
9645602 Frequency sensor for side-channel attack Junmou Zhang, Guoan Zhong 2017-05-09 $6,508,000
9640247 Methods and apparatuses for generating random numbers based on bit cell settling time Junmou Zhang, Min-Yi Chen 2017-05-02 $7,360,000
9575095 Low power high resolution oscillator based voltage sensor Junmou Zhang, Chuang Zhang, Yuancheng Christopher Pan 2017-02-21 $9,078,000
9484892 Integrated circuit adaptive voltage scaling with de-aging Mohammad Reza Kakoee, Shih-Hsin Jason Hu, Min-Yi Chen, Jasmin Smaila Ibrahimovic, Carlos Auyon +3 more 2016-11-01 $12,885,000
9473149 Temperature-compensated signal generator for supply voltage monitoring Junmou Zhang, Taesik Na, Guoan Zhong 2016-10-18 $12,379,000
9305632 Frequency power manager Zeeshan Syed, Yong Xu, Michael Thomas Fertsch, Boris Andreev, Zhiqin Chen +1 more 2016-04-05 $8,019,000
9213487 Receiver architecture for memory reads Narasimhan Vasudevan, Li-Te Pan, Michael Thomas Fertsch 2015-12-15 $12,129,000
9024684 Area-efficient PLL with a low-noise low-power loop filter Yu Song 2015-05-05 $9,129,000
8780658 Leakage reduction in memory devices Chang Ho Jung, Cheng Zhong, Zhiqin Chen 2014-07-15 $5,442,000
8760953 Sense amplifier with selectively powered inverter Zhiqin Chen, Ritu Chaba 2014-06-24 $8,441,000
8707001 Method and system for measuring memory access time using phase detector Zhiqin Chen, Varun Verma 2014-04-22 $8,613,000
8438433 Registers with full scan capability Hari M. Rao, Sei Seung Yoon 2013-05-07 $13,923,000
8289090 Amplitude control for oscillator Zhiqin Chen, Nam V. Dang, Thuan Ly 2012-10-16 $10,610,000
8270239 Semiconductor memory device and methods of performing a stress test on the semiconductor memory device Changho Jung, Zhiqin Chen 2012-09-18 $17,140,000