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Inventor

WAMPLER II CHARLES W

US36 patents
⚠️ This page may combine multiple inventors who share the name “WAMPLER II CHARLES W”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.

GM GLOBAL TECH OPERATIONS LLC

13 patents
US10928457B2Feb 23, 2021

Battery state estimation using high-frequency empirical model with resolved time constant

GM GLOBAL TECH OPERATIONS LLC9 citations86
US11662387B1May 30, 2023

Battery state estimation using an equivalent constant current model of overpotential

GM GLOBAL TECH OPERATIONS LLC3 citations73
US10589629B2Mar 17, 2020

Electrochemical device sensor and method of making and using the same

GM GLOBAL TECH OPERATIONS LLC4 citations73
US10288693B2May 14, 2019

State of charge estimator and methods of making and using the same

GM GLOBAL TECH OPERATIONS LLC4 citations73
US12000901B2Jun 4, 2024

Battery state estimation based on multiple rates of hysteresis transit

GM GLOBAL TECH OPERATIONS LLC0 citations56
US12334758B2Jun 17, 2025

Battery string state of charge balancing systems and methods

GM GLOBAL TECH OPERATIONS LLC0 citations52
US12334759B2Jun 17, 2025

Battery string state of charge balancing with phase sharing

GM GLOBAL TECH OPERATIONS LLC0 citations52
US12255472B2Mar 18, 2025

Switch duration setting for battery string state of charge balancing

GM GLOBAL TECH OPERATIONS LLC0 citations52
US12244162B2Mar 4, 2025

Simplified switching for state of charge balancing of battery strings and modules

GM GLOBAL TECH OPERATIONS LLC0 citations52
US10950903B2Mar 16, 2021

Battery state estimation using electrode transient model

GM GLOBAL TECH OPERATIONS LLC0 citations52
US10919408B2Feb 16, 2021

Controlling operation of device with rechargeable energy storage pack based on propulsion loss assessment

GM GLOBAL TECH OPERATIONS LLC0 citations43
US10591549B2Mar 17, 2020

Sensor and method of making and using the same

GM GLOBAL TECH OPERATIONS LLC0 citations42
US9821424B2Nov 21, 2017

Manufacturing fixture

GM GLOBAL TECH OPERATIONS LLC0 citations39

GM GLOBAL TECH OPERATIONS INC

6 patents

ABDALLAH MUHAMMAD E

5 patents

GEN MOTORS CORP

3 patents

WELLS JAMES W

2 patents

IHRKE CHRIS A

2 patents

REILAND MATTHEW J

1 patent

LINN DOUGLAS MARTIN

1 patent

PLATT ROBERT

1 patent

IBM

1 patent

WAMPLER II CHARLES W

1 patent