G01R 31/36
Arrangements for testing, measuring or monitoring the electrical condition of accumulators or
Official title: Arrangements for testing, measuring or monitoring the electrical condition of accumulators or electric batteries, e.g. capacity or state of charge [SoC]
G01R31/36 (Arrangements for testing, measuring or monitoring the electrical condition of accumulators or) appears on 9,931 US grants and 13,083 published applications in this corpus.
Search patents in G01R- Granted patents
- 9,931
- Published applications
- 13,083
- Assignees
- 2,846
- Inventors
- 19,674
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 12 | 0 |
| 1977 | 17 | 0 |
| 1978 | 6 | 0 |
| 1979 | 11 | 0 |
| 1980 | 14 | 0 |
| 1981 | 22 | 0 |
| 1982 | 18 | 0 |
| 1983 | 16 | 0 |
| 1984 | 15 | 0 |
| 1985 | 12 | 0 |
| 1986 | 13 | 0 |
| 1987 | 25 | 0 |
| 1988 | 15 | 0 |
| 1989 | 24 | 0 |
| 1990 | 26 | 0 |
| 1991 | 14 | 0 |
| 1992 | 33 | 0 |
| 1993 | 23 | 0 |
| 1994 | 45 | 0 |
| 1995 | 49 | 0 |
| 1996 | 39 | 0 |
| 1997 | 88 | 0 |
| 1998 | 92 | 0 |
| 1999 | 72 | 0 |
| 2000 | 103 | 0 |
| 2001 | 129 | 34 |
| 2002 | 106 | 87 |
| 2003 | 104 | 114 |
| 2004 | 92 | 146 |
| 2005 | 81 | 152 |
| 2006 | 85 | 165 |
| 2007 | 67 | 170 |
| 2008 | 106 | 174 |
| 2009 | 150 | 247 |
| 2010 | 147 | 266 |
| 2011 | 151 | 315 |
| 2012 | 237 | 419 |
| 2013 | 258 | 465 |
| 2014 | 283 | 514 |
| 2015 | 359 | 580 |
| 2016 | 427 | 578 |
| 2017 | 473 | 566 |
| 2018 | 518 | 642 |
| 2019 | 618 | 738 |
| 2020 | 624 | 724 |
| 2021 | 667 | 768 |
| 2022 | 707 | 923 |
| 2023 | 661 | 1082 |
| 2024 | 686 | 1125 |
| 2025 | 768 | 1107 |
| 2026 | 623 | 982 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
- G01R 31/382Arrangements for monitoring battery or accumulator variables5,461
- G01R 31/3644Constructional arrangements2,613
- G01R 31/392Determining battery ageing or deterioration2,544
- G01R 31/396Acquisition or processing of data for testing or for monitoring individual cells2,327
- G01R 31/367Software therefor2,165
- G01R 31/385Arrangements for measuring battery or accumulator variables1,689
- G01R 31/389Measuring internal impedance, internal conductance or related variables1,628
- G01R 31/374With means for correcting the measurement for temperature or ageing879
Recent patents
- Identifying a root cause of battery cell degradation in a battery pack6 Oct 2026US 12,752,664 B2GM Global Technology Operations LLC
- Transport apparatus, battery test system, and battery production system6 Oct 2026US 12,753,055 B2Contemporary Amperex Technology Co., Limited
- Vehicle control system for determining journey speed6 Oct 2026US 12,754,026 B2Jaguar Land Rover Limited
- Probe unit and charge/discharge inspection device6 Oct 2026US 12,754,238 B2Nippon Steel Texeng. Co., Ltd.
- Charge/discharge inspection device and charge/discharge inspection equipment6 Oct 2026US 12,754,239 B2Nippon Steel Texeng. Co., Ltd.
- Detection and remediation of liquid intrusion in vehicle battery packs8 Oct 2026US 2026/0307491 A1GM Global Technology Operations LLC
- Determination of a battery capability associated with a safety function8 Oct 2026US 2026/0307492 A1CPS Technology Holdings LLC
- Wireless battery management system having a power redundancy structure and a method for operating the same8 Oct 2026US 2026/0307508 A1Hyundai Motor Company
- Intermediary calibration device using electric vehicle battery as electrical load8 Oct 2026US 2026/0307532 A1
- Apparatus and method for measuring electrochemical impedance spectroscopy8 Oct 2026US 2026/0309659 A1SK On Co., Ltd.
Most cited
By later US patents
- Method for utilizing temperature to determine a battery state1,468US 7,348,763 B1Linvatec Corporation · 2008
- Surgical apparatus configured to assess whether a performance parameter of the surgical apparatus is within an acceptable performance band1,320US 10,180,463 B2Ethicon, Inc. · 2019
- Smart battery power availability feature based on battery-specific characteristics1,241US 5,541,489 AIntel Corporation · 1996
- Mechanisms for compensating for battery pack failure in powered surgical instruments1,201US 10,292,704 B2Ethicon, Inc. · 2019
- Surgical instrument battery pack with voltage polling1,192US 9,974,539 B2Ethicon, Inc. · 2018