Russell J. Apfel

Person

Austin, TX, US

People

Patents Grantslast 30 patents

Information Patent Grant
Hearing aid and hearing aid dual use dongle
- Patent number 10,462,582
- Issue date Oct 29, 2019
- III Holdings 4, LLC
- Frederick Charles Neumeyer
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Grant
Hearing aid, computing device, and method for selecting a hearing a...
- Patent number RE47063
- Issue date Sep 25, 2018
- III Holdings 4, LLC
- Russell J. Apfel
Information Patent Grant
Hearing aid and hearing aid dual use dongle
- Patent number 9,503,825
- Issue date Nov 22, 2016
- III Holdings 4, LLC
- Frederick Charles Neumeyer
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
I-V measurement system for photovoltaic modules
- Patent number 9,413,174
- Issue date Aug 9, 2016
- Atonometrics, Inc.
- Michael Gostein
- G05 - CONTROLLING REGULATING
Information Patent Grant
Hearing aid and hearing aid dual use dongle
- Patent number 9,071,917
- Issue date Jun 30, 2015
- Audiotoniq, Inc.
- Frederick Charles Neumeyer
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Powered device including a detection signature circuit
- Patent number 9,065,657
- Issue date Jun 23, 2015
- Silicon Laboratories Inc.
- Russell J. Apfel
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Portable tone generator for producing pre-calibrated tones
- Patent number 8,831,244
- Issue date Sep 9, 2014
- Audiotoniq, Inc.
- Russell J. Apfel
- A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
Information Patent Grant
Hearing aids, computing devices, and methods for hearing aid profil...
- Patent number 8,792,661
- Issue date Jul 29, 2014
- Audiotoniq, Inc.
- Russell J. Apfel
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Portable electronic device and computer-readable medium for remote...
- Patent number 8,761,421
- Issue date Jun 24, 2014
- Audiotoniq, Inc.
- Russell J. Apfel
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Hearing aid having multiple sound inputs and methods therefor
- Patent number 8,649,538
- Issue date Feb 11, 2014
- Audiotoniq, Inc.
- Russell J. Apfel
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Hearing aid, computing device, and method for selecting a hearing a...
- Patent number 8,538,049
- Issue date Sep 17, 2013
- Audiotoniq, Inc.
- Russell J. Apfel
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
System and method of classification in power over ethernet systems
- Patent number 8,375,231
- Issue date Feb 12, 2013
- Silison Laboratories Inc.
- D. Matthew Landry
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
System and method of classification in power over ethernet systems
- Patent number 8,261,104
- Issue date Sep 4, 2012
- Silicon Laboratories Inc.
- D. Matthew Landry
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Tracking voltage regulator for a subscriber line interface circuit
- Patent number 8,249,247
- Issue date Aug 21, 2012
- Silicon Laboratories Inc.
- Russell J. Apfel
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Integrated circuit including a switching regulator design for power...
- Patent number 8,064,179
- Issue date Nov 22, 2011
- Silicon Laboratories Inc.
- Russell J. Apfel
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Methods and apparatus for low voltage control of a subscriber line...
- Patent number 8,019,077
- Issue date Sep 13, 2011
- Silicon Laboratories Inc.
- Russell J. Apfel
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Output stacking architecture for an amplifier
- Patent number 7,970,125
- Issue date Jun 28, 2011
- Silicon Laboratories Inc.
- Russell J. Apfel
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Circuit device including multiple parameterized power regulators
- Patent number 7,964,992
- Issue date Jun 21, 2011
- Silicon Laboratories Inc.
- Russell Apfel
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Power sourcing equipment device including a serial interface
- Patent number 7,960,860
- Issue date Jun 14, 2011
- Silicon Laboratories Inc.
- Russell J. Apfel
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
System and method of classification in power over ethernet systems
- Patent number 7,793,124
- Issue date Sep 7, 2010
- Silicon Laboratories, Inc.
- D. Matthew Landry
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Power sourcing equipment device including a serial interface
- Patent number 7,791,221
- Issue date Sep 7, 2010
- Silicon Laboratories, Inc.
- Russell Apfel
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Voltage protection circuit for power supply device and method therefor
- Patent number 7,773,354
- Issue date Aug 10, 2010
- Silicon Laboratories, Inc.
- Russell J. Apfel
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Power supply with digital control loop
- Patent number 7,688,119
- Issue date Mar 30, 2010
- Silicon Laboratories, Inc.
- Geoffrey Thompson
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Grant
System and method of classification in power over ethernet systems
- Patent number 7,647,510
- Issue date Jan 12, 2010
- Silicon Laboratories, Inc.
- D. Matthew Landry
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Powered device including a detection signature resistor
- Patent number 7,548,799
- Issue date Jun 16, 2009
- Silicon Laboratories, Inc.
- D. Matthew Landry
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Powered device including a classification signature resistor
- Patent number 7,516,340
- Issue date Apr 7, 2009
- Silicon Laboratories, Inc.
- D. Matthew Landry
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
System and method for high voltage protection of powered devices
- Patent number 7,511,930
- Issue date Mar 31, 2009
- Silicon Laboratories, Inc.
- Russell J. Apfel
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Current mirror architectures
- Patent number 7,477,095
- Issue date Jan 13, 2009
- Silicon Laboratories Inc.
- Russell J. Apfel
- G05 - CONTROLLING REGULATING
Information Patent Grant
Unbalanced slic with a built-in ring circuit
- Patent number 7,260,210
- Issue date Aug 21, 2007
- Legerity, Inc.
- Russell Apfel
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Method and apparatus for an active impedance feedback
- Patent number 7,254,229
- Issue date Aug 7, 2007
- Legerity, Inc.
- Russell Apfel
- H04 - ELECTRIC COMMUNICATION TECHNIQUE

Patents Applicationslast 30 patents

Information Patent Application
HEARING AID AND HEARING AID DUAL USE DONGLE
- Publication number 20200037083
- Publication date Jan 30, 2020
- III Holdings 4, LLC
- Frederick Charles Neumeyer
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Application
HEARING AID AND HEARING AID DUAL USE DONGLE
- Publication number 20200021922
- Publication date Jan 16, 2020
- III HOLDINGS4, LLC
- Frederick Charles NEUMEYER
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Application
SYSTEM AND METHOD FOR REMOTE HEARING AID ADJUSTMENT AND HEARING TES...
- Publication number 20180115841
- Publication date Apr 26, 2018
- III Holdings 4, LLC
- Russell J. Apfel
- A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
Information Patent Application
HEARING AID AND HEARING AID DUAL USE DONGLE
- Publication number 20170118564
- Publication date Apr 27, 2017
- III Holdings 4, LLC
- Frederick Charles Neumeyer
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Application
I-V MEASUREMENT SYSTEM FOR PHOTOVOLTAIC MODULES
- Publication number 20160204737
- Publication date Jul 14, 2016
- ATONOMETRICS, INC.
- Michael Gostein
- G01 - MEASURING TESTING
Information Patent Application
HEARING AID AND HEARING AID DUAL USE DONGLE
- Publication number 20150256946
- Publication date Sep 10, 2015
- AUDIOTONIQ, INC.
- Frederick Charles Neumeyer
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
HEARING AID AND HEARING AID DUAL USE DONGLE
- Publication number 20140003641
- Publication date Jan 2, 2014
- AUDIOTONIQ, INC.
- Frederick Charles Neumeyer
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
I-V MEASUREMENT SYSTEM FOR PHOTOVOLTAIC MODULES
- Publication number 20130181736
- Publication date Jul 18, 2013
- ATONOMETRICS, INC.
- Michael Gostein
- G01 - MEASURING TESTING
Information Patent Application
SYSTEM AND METHOD FOR REMOTE HEARING AID ADJUSTMENT AND HEARING TES...
- Publication number 20130177188
- Publication date Jul 11, 2013
- AUDIOTONIQ, INC.
- Russell J Apfel
- A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
Information Patent Application
Portable Tone Generator for Producing Pre-Calibrated Tones
- Publication number 20120288119
- Publication date Nov 15, 2012
- AUDIOTONIQ, INC.
- Russell J. Apfel
- A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
Information Patent Application
Portable Electronic Device and Computer-Readable Medium for Remote...
- Publication number 20120183163
- Publication date Jul 19, 2012
- AUDIOTONIQ, INC.
- Russell J. Apfel
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
HEARING AID, COMPUTING DEVICE, AND METHOD FOR SELECTING A HEARING A...
- Publication number 20110200215
- Publication date Aug 18, 2011
- AUDIOTONIQ, INC.
- Russell J. Apfel
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
HEARING AID HAVING MULTIPLE SOUND INPUTS AND METHODS THEREFOR
- Publication number 20110194713
- Publication date Aug 11, 2011
- AUDIOTONIQ, INC.
- Russell J. Apfel
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
Hearing Aids, Computing Devices, and Methods for Hearing Aid Profil...
- Publication number 20110176697
- Publication date Jul 21, 2011
- AUDIOTONIQ, INC.
- Russell J. Apfel
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
POWER SOURCING EQUIPMENT DEVICE INCLUDING A SERIAL INTERFACE
- Publication number 20100314939
- Publication date Dec 16, 2010
- SILICON LABORATORIES, INC.
- Russell J. Apfel
- Y10 - TECHNICAL SUBJECTS COVERED BY FORMER USPC
Information Patent Application
SYSTEM AND METHOD OF CLASSIFICATION IN POWER OVER ETHERNET SYSTEMS
- Publication number 20100293399
- Publication date Nov 18, 2010
- Silicon Laboratories Inc.
- D. Matthew Landry
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
SYSTEM AND METHOD OF CLASSIFICATION IN POWER OVER ETHERNET SYSTEMS
- Publication number 20100077245
- Publication date Mar 25, 2010
- Silicon Laboratories Inc.
- D. Matthew Landry
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
CIRCUIT DEVICE INCLUDING MULTIPLE PARAMETERIZED POWER REGULATORS
- Publication number 20100066169
- Publication date Mar 18, 2010
- Silicon Laboratories Inc.
- Russell J. Apfel
- Y10 - TECHNICAL SUBJECTS COVERED BY FORMER USPC
Information Patent Application
POWER SOURCING EQUIPMENT DEVICE AND METHOD OF PROVIDING A POWER SUP...
- Publication number 20100007334
- Publication date Jan 14, 2010
- Silicon Laboratories Inc.
- Russell J. Apfel
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
POWER SOURCING EQUIPMENT DEVICE INCLUDING A SERIAL INTERFACE
- Publication number 20090273238
- Publication date Nov 5, 2009
- Silicon Laboratories Inc.
- Russell J. Apfel
- Y10 - TECHNICAL SUBJECTS COVERED BY FORMER USPC
Information Patent Application
Power Supply with Digital Control Loop
- Publication number 20090243701
- Publication date Oct 1, 2009
- Geoffrey Thompson
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Application
Tracking voltage regulator for a subscriber line interface circuit
- Publication number 20080159525
- Publication date Jul 3, 2008
- Russell J. Apfel
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
Methods and apparatus for low voltage control of a subscriber line...
- Publication number 20080159487
- Publication date Jul 3, 2008
- Russell J. Apfel
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
SYSTEM AND METHOD OF CLASSIFICATION IN POWER OVER ETHERNET SYSTEMS
- Publication number 20080162973
- Publication date Jul 3, 2008
- Silicon Laboratories Inc.
- D. Matthew Landry
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
Powered device including a detection signature circuit
- Publication number 20080150718
- Publication date Jun 26, 2008
- SILICON LABORATORIES, INC.
- Russell J. Apfel
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
Voltage protection circuit for power supply device and method therefor
- Publication number 20080151457
- Publication date Jun 26, 2008
- SILICON LABORATORIES, INC.
- Russell J. Apfel
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
Integrated circuit including a switching regulator design for power...
- Publication number 20080062586
- Publication date Mar 13, 2008
- SILICON LABORATORIES, INC.
- Russell J. Apfel
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
Powered device including a detection signature resistor
- Publication number 20080024106
- Publication date Jan 31, 2008
- SILICON LABORATORIES, INC.
- D. Matthew Landry
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
Powered device including a classification signature resistor
- Publication number 20080005598
- Publication date Jan 3, 2008
- SILICON LABORATORIES, INC.
- D. Matthew Landry
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
System and method of classification in power over Ethernet systems
- Publication number 20070296394
- Publication date Dec 27, 2007
- SILICON LABORATORIES, INC.
- D. Matthew Landry
- H04 - ELECTRIC COMMUNICATION TECHNIQUE

Russell J. Apfel

Person

Patents Grantslast 30 patents

Hearing aid and hearing aid dual use dongle

Hearing aid, computing device, and method for selecting a hearing a...

Hearing aid and hearing aid dual use dongle

I-V measurement system for photovoltaic modules

Hearing aid and hearing aid dual use dongle

Powered device including a detection signature circuit

Portable tone generator for producing pre-calibrated tones

Hearing aids, computing devices, and methods for hearing aid profil...

Portable electronic device and computer-readable medium for remote...

Hearing aid having multiple sound inputs and methods therefor

Hearing aid, computing device, and method for selecting a hearing a...

System and method of classification in power over ethernet systems

System and method of classification in power over ethernet systems

Tracking voltage regulator for a subscriber line interface circuit

Integrated circuit including a switching regulator design for power...

Methods and apparatus for low voltage control of a subscriber line...

Output stacking architecture for an amplifier

Circuit device including multiple parameterized power regulators

Power sourcing equipment device including a serial interface

System and method of classification in power over ethernet systems

Power sourcing equipment device including a serial interface

Voltage protection circuit for power supply device and method therefor

Power supply with digital control loop

System and method of classification in power over ethernet systems

Powered device including a detection signature resistor

Powered device including a classification signature resistor

System and method for high voltage protection of powered devices

Current mirror architectures

Unbalanced slic with a built-in ring circuit

Method and apparatus for an active impedance feedback

Patents Applicationslast 30 patents

HEARING AID AND HEARING AID DUAL USE DONGLE

HEARING AID AND HEARING AID DUAL USE DONGLE

SYSTEM AND METHOD FOR REMOTE HEARING AID ADJUSTMENT AND HEARING TES...

HEARING AID AND HEARING AID DUAL USE DONGLE

I-V MEASUREMENT SYSTEM FOR PHOTOVOLTAIC MODULES

HEARING AID AND HEARING AID DUAL USE DONGLE

HEARING AID AND HEARING AID DUAL USE DONGLE

I-V MEASUREMENT SYSTEM FOR PHOTOVOLTAIC MODULES

SYSTEM AND METHOD FOR REMOTE HEARING AID ADJUSTMENT AND HEARING TES...

Portable Tone Generator for Producing Pre-Calibrated Tones

Portable Electronic Device and Computer-Readable Medium for Remote...

HEARING AID, COMPUTING DEVICE, AND METHOD FOR SELECTING A HEARING A...

HEARING AID HAVING MULTIPLE SOUND INPUTS AND METHODS THEREFOR

Hearing Aids, Computing Devices, and Methods for Hearing Aid Profil...

POWER SOURCING EQUIPMENT DEVICE INCLUDING A SERIAL INTERFACE

SYSTEM AND METHOD OF CLASSIFICATION IN POWER OVER ETHERNET SYSTEMS

SYSTEM AND METHOD OF CLASSIFICATION IN POWER OVER ETHERNET SYSTEMS

CIRCUIT DEVICE INCLUDING MULTIPLE PARAMETERIZED POWER REGULATORS

POWER SOURCING EQUIPMENT DEVICE AND METHOD OF PROVIDING A POWER SUP...

POWER SOURCING EQUIPMENT DEVICE INCLUDING A SERIAL INTERFACE

Power Supply with Digital Control Loop

Tracking voltage regulator for a subscriber line interface circuit

Methods and apparatus for low voltage control of a subscriber line...

SYSTEM AND METHOD OF CLASSIFICATION IN POWER OVER ETHERNET SYSTEMS

Powered device including a detection signature circuit

Voltage protection circuit for power supply device and method therefor

Integrated circuit including a switching regulator design for power...

Powered device including a detection signature resistor

Powered device including a classification signature resistor

System and method of classification in power over Ethernet systems