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

Kadaba Lakshmikumar — 44 Patents

Cisco: 25 patents #435 of 13,007Top 4%
ATAT&T: 11 patents #1,612 of 18,772Top 9%
ASAgere Systems: 4 patents #355 of 1,849Top 20%
AGAgere Systems Guardian: 1 patents #274 of 810Top 35%
CSConexant Systems: 1 patents #311 of 657Top 50%
ICIkanos Communications: 1 patents #67 of 152Top 45%
Berkeley Heights, NJ: #32 of 1,035 inventorsTop 4%
New Jersey: #1,165 of 69,400 inventorsTop 2%
Overall (All Time): #66,838 of 4,157,543Top 2%
44 Patents All Time
Kadaba Lakshmikumar has been granted 44 US patents while listed as an inventor at Cisco. The first was granted in 1996 and the most recent in October 2025. Kadaba Lakshmikumar ranks #66,838 of 4,157,543 US inventors in our database (top 1.6%). Patent records list Kadaba Lakshmikumar in Berkeley Heights, NJ, US.

Patents per Year

Patents granted per year, 1996 to 2025Bar chart with a peak of 5 patents in 2022.peak 51996: 1 patents19961997: 3 patents1998: 3 patents19981999: 2 patents2000: 2 patents20002002: 1 patents2003: 1 patents20032004: 4 patents2010: 1 patents20102013: 1 patents2016: 2 patents20162017: 2 patents2019: 1 patents20192020: 1 patents2021: 4 patents20212022: 5 patents2023: 4 patents20232024: 4 patents2025: 2 patents2025

Issued Patents All Time

Showing 1–25 of 44 patents

Patent #TitleCo-InventorsDateApprox Value ⓘ
12456910 Latch-up mitigated charge pump for high power supply rejection low-dropout regulator Bibhu Prasad Das, Abhishek Bhat, Romesh Kumar Nandwana 2025-10-28
12191915 Differential differencing transimpedance amplifier for coherent applications Romesh Kumar Nandwana, Alexander C. Kurylak 2025-01-07
12126363 Error cancellation delta-sigma DAC with an inverting amplifier-based filter Bibhu Prasad Das, Romesh Kumar Nandwana, Richard Booth, Pavan Kumar Hanumolu 2024-10-22 $56,307,000
12107556 Fault detection in integrated circuits Sanjay Sunder, Alexander C. Kurylak 2024-10-01 $56,779,000
11901906 Hybrid fractional-N sampling phase locked loop (PLL) with accurate digital-to-time converter (DTC) calibration Abhishek Bhat, Romesh Kumar Nandwana, Pavan Kumar Hanumolu 2024-02-13 $32,056,000
11863222 Low area equalizer with lane mismatch adaptation for sub-rate receivers Romesh Kumar Nandwana, Abhishek Bhat, Pavan Kumar Hanumolu 2024-01-02 $26,269,000
11811375 Differential transimpedance amplifier employing asymmetric signal paths Alexander C. Kurylak, Romesh Kumar Nandwana 2023-11-07 $27,080,000
11671105 Frequency tracking loop using a scaled replica oscillator for injection locked oscillators Abhishek Bhat, Romesh Kumar Nandwana, Pavan Kumar Hanumolu 2023-06-06 $45,705,000
11575359 Multi-port coupled inductor with interference suppression Abhishek Bhat, Romesh Kumar Nandwana 2023-02-07 $71,701,000
11552600 Photodiode cathode biasing Alexander C. Kurylak 2023-01-10 $84,240,000
11533057 Dynamic multiphase injection-locked phase rotator for electro-optical transceiver Yudong Zhang, Romesh Kumar Nandwana 2022-12-20 $68,140,000
11509319 Low integral non-linearity digital-to-time converter for fractional-N PLLS Yongxin Li, Romesh Kumar Nandwana 2022-11-22 $53,822,000
11356107 Frequency tracking loop using a scaled replica oscillator for injection locked oscillators Abhishek Bhat, Romesh Kumar Nandwana, Pavan Kumar Hanumolu 2022-06-07 $52,860,000
11249499 Linear transimpedance amplifier dual regulator architecture and tuning Alexander C. Kurylak, Bibhu Prasad Das 2022-02-15 $37,512,000
11218113 Dual-core dual-resonance compact inductor-capacitor voltage controlled oscillator Abhishek Bhat, Romesh Kumar Nandwana 2022-01-04 $47,502,000
11177796 Sense amplifier flip-flop Alexander C. Kurylak 2021-11-16 $76,489,000
11063595 Dynamic multiphase injection-locked phase rotator for electro-optical transceiver Yudong Zhang, Romesh Kumar Nandwana 2021-07-13 $60,628,000
10965377 Thermal tuning and quadrature control using active extinction ratio tracking Craig S. Appel, Romesh Kumar Nandwana, Sanjay Sunder 2021-03-30 $43,930,000
10942377 High swing AC-coupled Mach-Zehnder interferometer (MZI) driver Manohar Nagaraju, Sean P. Anderson, Alexander C. Kurylak 2021-03-09 $63,403,000
10819299 Process and temperature insensitive linear circuit Alexander C. Kurylak, Manohar Nagaraju, Richard Booth 2020-10-27 $54,769,000
10505509 Process and temperature insensitive linear circuit Alexander C. Kurylak, Manohar Nagaraju, Richard Booth 2019-12-10 $36,171,000
9793902 Reference-less clock and data recovery circuit Mark Y. Tse, Bibhu Prasad Das, Bipin Dama 2017-10-17 $25,416,000
9654061 Silicon photonics modulator driver Craig S. Appel 2017-05-16 $11,667,000
9397687 Monotonic segmented digital to analog converter Mark Y. Tse 2016-07-19 $57,477,000
9258010 Monotonic segmented digital to analog converter Mark Y. Tse 2016-02-09 $22,969,000