G01R 31/3833
Using analog integrators
Official title: {using analog integrators, e.g. coulomb-meters}
G01R31/3833 (Using analog integrators) appears on 22 US grants and 30 published applications in this corpus.
Search patents in G01R- Granted patents
- 22
- Published applications
- 30
- Assignees
- 28
- Inventors
- 75
- Latest grant
- 28 Apr 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1983 | 1 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 0 |
| 2003 | 0 | 0 |
| 2004 | 0 | 0 |
| 2005 | 0 | 0 |
| 2006 | 0 | 0 |
| 2007 | 0 | 0 |
| 2008 | 0 | 0 |
| 2009 | 0 | 0 |
| 2010 | 0 | 1 |
| 2011 | 0 | 0 |
| 2012 | 0 | 0 |
| 2013 | 0 | 1 |
| 2014 | 0 | 1 |
| 2015 | 0 | 0 |
| 2016 | 1 | 3 |
| 2017 | 3 | 2 |
| 2018 | 0 | 5 |
| 2019 | 3 | 5 |
| 2020 | 3 | 0 |
| 2021 | 3 | 3 |
| 2022 | 0 | 0 |
| 2023 | 2 | 3 |
| 2024 | 1 | 3 |
| 2025 | 3 | 1 |
| 2026 | 2 | 2 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- System and method of estimating state of charge of battery using coulomb counting estimation with periodic calibration using artificial intelligence based estimation28 Apr 2026US 12,613,280 B2NXP B. V.
- Systems and methods for determining battery state of charge28 Apr 2026US 12,613,282 B2Cirrus Logic, Inc.
- Apparatus and method for battery SOC estimation23 Dec 2025US 12,504,478 B2Gotion Inc.
- Distributed coulomb counter21 Oct 2025US 12,449,482 B2Analog Devices International Unlimited Company
- Delta voltage hybrid battery fuel gauge29 Jul 2025US 12,372,586 B2Medtronic, Inc.
- Distributed coulomb counter7 May 2026US 2026/0126494 A1Analog Devices International Unlimited Company
- Battery depletion monitor26 Feb 2026US 2026/0056258 A1Medtronic, Inc.
- Method for calibrating battery level, electronic device and storage medium27 Feb 2025US 2025/0070579 A1Shenzhen Pax Smart New Technology Co., Ltd.
- Method for monitoring a charging level of a battery, and associated storage system24 Oct 2024US 2024/0353495 A1Safran Electrical & Power
- Systems and methods for determining battery state of charge9 May 2024US 2024/0151776 A1Cirrus Logic International Semiconductor Ltd.
Most cited
By later US patents
- Battery state of charge indicator operating on bidirectional integrations of terminal voltage34US 4,388,618 ACurtis Instruments, Inc. · 1983
- Semiconductor device10US 9,316,695 B2Semiconductor Energy Laboratory Co.Ltd. · 2016
- Method and system for estimating state of charge or depth of discharge of battery, and method and system for evaluating health of battery8US 10,534,038 B2Japan Aerospace Exploration Agency · 2020
- Management of battery charging through coulomb counting3US 9,797,960 B2PowerOasis, Inc. · 2017
- Semiconductor device, battery monitoring system, and diagnostic method for semiconductor device2US 10,330,736 B2Lapis Semiconductor Co., Ltd. · 2019