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

Robert K. Kong — 4 Patents

Apple: 4 patents #6,401 of 18,612Top 35%
San Francisco, CA: #9,676 of 26,999 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 K. Kong has been granted 4 US patents while listed as an inventor at Apple. The first was granted in 2018 and the most recent in December 2020. Robert K. Kong ranks #1,080,739 of 4,157,543 US inventors in our database (top 26.0%). Patent records list Robert K. Kong in San Francisco, CA, US.

Patents per Year

Patents granted per year, 2018 to 2020Bar chart with a peak of 2 patents in 2020.peak 22018: 1 patents20182019: 1 patents20192020: 2 patents2020

Issued Patents All Time

Showing 1–4 of 4 patents

Patent #TitleCo-InventorsDateApprox Value ⓘ
10873335 Divider control and reset for phase-locked loops Cristian Marcu, Feng Zhao, Wei Deng, Chunwei Chang, Saeed Chehrazi 2020-12-22 $332,226,000
10623007 Energy-efficient charge pump design for phase-locked loops Shaobo Liu, Dennis M. Fischette, Jr., Patrick J. Landy 2020-04-14 $120,660,000
10291243 Digital linearization technique for charge pump based fractional phased-locked loop Feng Zhao, Wei Deng 2019-05-14 $90,532,000
9954542 Digital linearization technique for charge pump based fractional phased-locked loop Feng Zhao, Wei Deng 2018-04-24 $65,456,000