G01R 31/392
Determining battery ageing or deterioration
Official title: Determining battery ageing or deterioration, e.g. state of health
G01R31/392 (Determining battery ageing or deterioration) appears on 2,544 US grants and 4,131 published applications in this corpus.
Search patents in G01R- Granted patents
- 2,544
- Published applications
- 4,131
- Assignees
- 1,107
- Inventors
- 6,898
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1977 | 1 | 0 |
| 1978 | 0 | 0 |
| 1979 | 1 | 0 |
| 1980 | 0 | 0 |
| 1981 | 2 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 1 | 0 |
| 1987 | 1 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 3 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 1 | 0 |
| 1995 | 2 | 0 |
| 1996 | 3 | 0 |
| 1997 | 4 | 0 |
| 1998 | 2 | 0 |
| 1999 | 4 | 0 |
| 2000 | 3 | 0 |
| 2001 | 6 | 8 |
| 2002 | 15 | 8 |
| 2003 | 15 | 19 |
| 2004 | 10 | 12 |
| 2005 | 3 | 18 |
| 2006 | 10 | 18 |
| 2007 | 12 | 29 |
| 2008 | 13 | 22 |
| 2009 | 21 | 45 |
| 2010 | 20 | 48 |
| 2011 | 24 | 47 |
| 2012 | 32 | 69 |
| 2013 | 45 | 83 |
| 2014 | 43 | 99 |
| 2015 | 64 | 119 |
| 2016 | 77 | 146 |
| 2017 | 98 | 163 |
| 2018 | 106 | 176 |
| 2019 | 176 | 218 |
| 2020 | 179 | 222 |
| 2021 | 212 | 295 |
| 2022 | 264 | 383 |
| 2023 | 256 | 475 |
| 2024 | 257 | 474 |
| 2025 | 307 | 483 |
| 2026 | 251 | 452 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Method and system utilizing pulse voltammetry for testing battery6 Oct 2026US 12,754,240 B2CFD Research Corporation
- Method and apparatus with battery parameters determination6 Oct 2026US 12,754,243 B2Samsung Electronics Co., Ltd.
- Determining longevity of batteries using depth of discharge6 Oct 2026US 12,754,246 B2Medtronic, Inc.
- Battery balancing apparatus using piezoelectric transformers and related device6 Oct 2026US 12,754,249 B2Huawei Digital Power Technologies Co., Ltd.
- Device and method for sensing state of battery cell6 Oct 2026US 12,754,250 B2SK On Co., Ltd.
- Apparatus and method for measuring electrochemical impedance spectroscopy8 Oct 2026US 2026/0309659 A1SK On Co., Ltd.
- Energy storage capacity estimation in aerosol-generating systems8 Oct 2026US 2026/0309783 A1Philip Morris Products S. A.
- Battery states co-estimation technique using dual square root unscented kalman filter8 Oct 2026US 2026/0309784 A1Smartkosh Technologies Private Limited
- Method for Estimating State of Rechargeable Battery8 Oct 2026US 2026/0309785 A1Toyota Battery Co., Ltd.
- Systems and methods for cell-based modeling performance of a battery pack8 Oct 2026US 2026/0309786 A1
Most cited
By later US patents
- Method for utilizing temperature to determine a battery state1,468US 7,348,763 B1Linvatec Corporation · 2008
- Mechanisms for compensating for battery pack failure in powered surgical instruments1,201US 10,292,704 B2Ethicon, Inc. · 2019
- Battery pack, electronic appliance, and method of detecting remaining amount of battery853US 8,359,174 B2Sony Corporation · 2013
- Mechanisms for compensating for battery pack failure in powered surgical instruments400US 11,058,422 B2Cilag GmbH International · 2021
- Control system for on-vehicle battery231US 5,939,861 AHino Jidosha Kogyo Kabushiki Kaisha · 1999