Inventor

LESSO JOHN P

GB112 patents

⚠️ This page may combine multiple inventors who share the name “LESSO JOHN P”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.

CIRRUS LOGIC INT SEMICONDUCTOR LTD

40 patents

US10312802B2Jun 4, 2019

Charge pump circuit

CIRRUS LOGIC INT SEMICONDUCTOR LTD12 citations92

US11146171B2Oct 12, 2021

Charge pump circuit

CIRRUS LOGIC INT SEMICONDUCTOR LTD5 citations84

US11134354B1Sep 28, 2021

Wear detection

CIRRUS LOGIC INT SEMICONDUCTOR LTD7 citations84

US9735672B2Aug 15, 2017

Charge pump circuit

CIRRUS LOGIC INT SEMICONDUCTOR LTD9 citations84

US9685856B2Jun 20, 2017

Charge pump circuit

CIRRUS LOGIC INT SEMICONDUCTOR LTD6 citations84

US11219386B2Jan 11, 2022

Cough detection

CIRRUS LOGIC INT SEMICONDUCTOR LTD4 citations83

US11889280B2Jan 30, 2024

Filters and filter chains

CIRRUS LOGIC INT SEMICONDUCTOR LTD2 citations73

US11431345B2Aug 30, 2022

Data conversion

CIRRUS LOGIC INT SEMICONDUCTOR LTD2 citations73

US11398777B2Jul 26, 2022

Charge pump circuit

CIRRUS LOGIC INT SEMICONDUCTOR LTD2 citations73

US11381239B1Jul 5, 2022

Driver circuitry

CIRRUS LOGIC INT SEMICONDUCTOR LTD2 citations73

US11272293B2Mar 8, 2022

Loudspeaker driver systems

CIRRUS LOGIC INT SEMICONDUCTOR LTD2 citations73

US11122350B1Sep 14, 2021

Method and apparatus for on ear detect

CIRRUS LOGIC INT SEMICONDUCTOR LTD3 citations73

US11089415B1Aug 10, 2021

On-ear transition detection

CIRRUS LOGIC INT SEMICONDUCTOR LTD3 citations73

US10945069B1Mar 9, 2021

Loudspeaker driver systems

CIRRUS LOGIC INT SEMICONDUCTOR LTD3 citations73

US10361709B2Jul 23, 2019

Clock generator

CIRRUS LOGIC INT SEMICONDUCTOR LTD2 citations73

US10171049B2Jan 1, 2019

Class-D amplifier circuits

CIRRUS LOGIC INT SEMICONDUCTOR LTD2 citations73

US9787261B2Oct 10, 2017

Class-D amplifier circuits

CIRRUS LOGIC INT SEMICONDUCTOR LTD3 citations73

US11627414B2Apr 11, 2023

Microphone system

CIRRUS LOGIC INT SEMICONDUCTOR LTD2 citations71

US11323810B2May 3, 2022

Microphone system

CIRRUS LOGIC INT SEMICONDUCTOR LTD3 citations71

US11489505B2Nov 1, 2022

Methods and systems for equalization

CIRRUS LOGIC INT SEMICONDUCTOR LTD3 citations68

US11410678B2Aug 9, 2022

Methods and apparatus for detecting singing

CIRRUS LOGIC INT SEMICONDUCTOR LTD4 citations67

US10333395B2Jun 25, 2019

Charge pump circuit

CIRRUS LOGIC INT SEMICONDUCTOR LTD1 citations67

US12267016B2Apr 1, 2025

Power converters

CIRRUS LOGIC INT SEMICONDUCTOR LTD1 citations64

US12570018B2Mar 10, 2026

Amplifiers

CIRRUS LOGIC INT SEMICONDUCTOR LTD0 citations63

US12529730B2Jan 20, 2026

Circuitry for measurement of electrochemical cells

CIRRUS LOGIC INT SEMICONDUCTOR LTD0 citations63

US12453493B2Oct 28, 2025

Measurement circuitry

CIRRUS LOGIC INT SEMICONDUCTOR LTD0 citations63

US12456921B2Oct 28, 2025

DC-DC converter with parallel and series capacitor configurations

CIRRUS LOGIC INT SEMICONDUCTOR LTD0 citations63

US12450030B2Oct 21, 2025

Circuitry for performing a multiply-accumulate operation

CIRRUS LOGIC INT SEMICONDUCTOR LTD0 citations63

US12405243B2Sep 2, 2025

Circuitry for analyte measurement

CIRRUS LOGIC INT SEMICONDUCTOR LTD0 citations63

US12396672B2Aug 26, 2025

On-ear detection

CIRRUS LOGIC INT SEMICONDUCTOR LTD0 citations63

US12396367B2Aug 19, 2025

Driver circuitry comprising active inductor circuitry for piezoelectric transducers

CIRRUS LOGIC INT SEMICONDUCTOR LTD0 citations63

US12323160B2Jun 3, 2025

Filters

CIRRUS LOGIC INT SEMICONDUCTOR LTD0 citations63

US12169418B2Dec 17, 2024

Voltage regulators

CIRRUS LOGIC INT SEMICONDUCTOR LTD0 citations63

US12149256B2Nov 19, 2024

Data conversion

CIRRUS LOGIC INT SEMICONDUCTOR LTD0 citations63

US12114137B2Oct 8, 2024

Filters and filter chains

CIRRUS LOGIC INT SEMICONDUCTOR LTD0 citations63

US12107494B2Oct 1, 2024

DC-DC converter with reservoir circuitry

CIRRUS LOGIC INT SEMICONDUCTOR LTD0 citations63

US11894000B2Feb 6, 2024

Authenticating received speech

CIRRUS LOGIC INT SEMICONDUCTOR LTD0 citations63

US11832523B2Nov 28, 2023

Driver circuitry comprising active inductor circuitry for driving piezoelectric transducers

CIRRUS LOGIC INT SEMICONDUCTOR LTD0 citations63

US11817833B2Nov 14, 2023

Amplifiers

CIRRUS LOGIC INT SEMICONDUCTOR LTD0 citations63

US11721346B2Aug 8, 2023

Authentication device

CIRRUS LOGIC INT SEMICONDUCTOR LTD1 citations63

WOLFSON MICROELECTRONICS PLC

6 patents

US7714660B2May 11, 2010

Amplifier circuit and methods of operation thereof

WOLFSON MICROELECTRONICS PLC41 citations96

US7990742B2Aug 2, 2011

Charge pump circuit and methods of operation thereof

WOLFSON MICROELECTRONICS PLC33 citations93

US7626445B2Dec 1, 2009

Charge pump circuit and methods of operation thereof

WOLFSON MICROELECTRONICS PLC34 citations92

US7622984B2Nov 24, 2009

Charge pump circuit and methods of operation thereof

WOLFSON MICROELECTRONICS PLC34 citations92

US9306448B2Apr 5, 2016

Amplifier circuit and methods of operation thereof

WOLFSON MICROELECTRONICS PLC3 citations84

US9236794B2Jan 12, 2016

Charge pump circuit and methods of operations thereof

WOLFSON MICROELECTRONICS PLC11 citations84

LESSO JOHN P

3 patents

US8427851B2Apr 23, 2013

Charge pump circuit and methods of operation thereof

LESSO JOHN P15 citations92

US8183931B2May 22, 2012

Amplifier circuit and methods of operation thereof

LESSO JOHN P6 citations83

US8660277B2Feb 25, 2014

Amplifier circuit and methods of operation thereof

LESSO JOHN P3 citations73

Wolfson Microelectronics ple

1 patent

US8363856B2Jan 29, 2013

Audio amplifier circuit and electronic apparatus including the same

Wolfson Microelectronics ple25 citations89

Showing the top 50 of 112 patents by PatentIndex Score.