G01R 31/38
Primary cells, i.e. not rechargeable
Official title: {Primary cells, i.e. not rechargeable}
G01R31/38 (Primary cells, i.e. not rechargeable) appears on 13 US grants and 18 published applications in this corpus.
Search patents in G01R- Granted patents
- 13
- Published applications
- 18
- Assignees
- 17
- Inventors
- 43
- Latest grant
- 11 Aug 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1987 | 1 | 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 | 0 |
| 2011 | 0 | 0 |
| 2012 | 0 | 0 |
| 2013 | 0 | 1 |
| 2014 | 0 | 0 |
| 2015 | 0 | 1 |
| 2016 | 1 | 1 |
| 2017 | 0 | 1 |
| 2018 | 1 | 1 |
| 2019 | 2 | 2 |
| 2020 | 0 | 1 |
| 2021 | 1 | 2 |
| 2022 | 1 | 2 |
| 2023 | 2 | 2 |
| 2024 | 1 | 3 |
| 2025 | 0 | 1 |
| 2026 | 3 | 0 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Depth of discharge determination of alkaline batteries11 Aug 2026US 12,704,559 B2Medtronic, Inc.
- Jig for measuring 3-electrode voltage2 Jun 2026US 12,644,929 B2Research & Business Foundation Sungkyunkwan University
- Method for determining the service life of an electrochemical cell of a battery in real time5 May 2026US 12,618,914 B2Saft
- Grid islanded fuel cell installation for data center load4 Jun 2024US 12,000,898 B2Bloom Energy Corporation
- Method and system for testing and charging a vehicle battery29 Aug 2023US 11,740,295 B2Fca US LLC
- Radio frequency (rf) device battery monitoring system and related methods12 Jun 2025US 2025/0189594 A1Harris Global Communications, Inc.
- Jig for measuring 3-electrode voltage21 Nov 2024US 2024/0385247 A1Research & Business Foundation Sungkyunkwan University
- Method for determining the service life of an electrochemical cell of a battery in real time20 Jun 2024US 2024/0201270 A1Saft
- Consumption meter system20 Jun 2024US 2024/0201278 A1Kamstrup A/S
- Depth of discharge determination of alkaline batteries17 Aug 2023US 2023/0258732 A1Medtronic, Inc.
Most cited
By later US patents
- Battery tester26US 4,659,994 AThe United States of America as represented by the Secretary of the Navy · 1987
- Grid islanded fuel cell installation for data center load3US 11,092,652 B2Bloom Energy Corporation · 2021
- Methods of determining battery life in an implantable medical device3US 11,493,556 B2Advanced Neuromodulation Systems, Inc. · 2022