G01R 19/16538
In ac or dc supplies
Official title: {in AC or DC supplies (G01R19/16519 and G01R19/16528 take precedence)}
G01R19/16538 (In ac or dc supplies) appears on 2,178 US grants and 2,119 published applications in this corpus.
Search patents in G01R- Granted patents
- 2,178
- Published applications
- 2,119
- Assignees
- 1,003
- Inventors
- 4,809
- Latest grant
- 22 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 10 | 0 |
| 1977 | 19 | 0 |
| 1978 | 6 | 0 |
| 1979 | 13 | 0 |
| 1980 | 13 | 0 |
| 1981 | 11 | 0 |
| 1982 | 10 | 0 |
| 1983 | 9 | 0 |
| 1984 | 12 | 0 |
| 1985 | 12 | 0 |
| 1986 | 12 | 0 |
| 1987 | 4 | 0 |
| 1988 | 5 | 0 |
| 1989 | 14 | 0 |
| 1990 | 10 | 0 |
| 1991 | 12 | 0 |
| 1992 | 18 | 0 |
| 1993 | 6 | 0 |
| 1994 | 12 | 0 |
| 1995 | 19 | 0 |
| 1996 | 16 | 0 |
| 1997 | 22 | 0 |
| 1998 | 29 | 0 |
| 1999 | 34 | 0 |
| 2000 | 32 | 0 |
| 2001 | 33 | 9 |
| 2002 | 36 | 29 |
| 2003 | 34 | 29 |
| 2004 | 22 | 32 |
| 2005 | 28 | 40 |
| 2006 | 32 | 60 |
| 2007 | 32 | 40 |
| 2008 | 38 | 58 |
| 2009 | 35 | 61 |
| 2010 | 43 | 35 |
| 2011 | 39 | 30 |
| 2012 | 42 | 68 |
| 2013 | 40 | 57 |
| 2014 | 38 | 47 |
| 2015 | 44 | 83 |
| 2016 | 52 | 66 |
| 2017 | 83 | 78 |
| 2018 | 81 | 102 |
| 2019 | 109 | 196 |
| 2020 | 166 | 148 |
| 2021 | 149 | 195 |
| 2022 | 181 | 182 |
| 2023 | 166 | 159 |
| 2024 | 137 | 131 |
| 2025 | 119 | 99 |
| 2026 | 39 | 85 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Apparatus and method for detecting an electric current flow through a diode, and electric drive system22 Sep 2026US 12,741,540 B2Robert Bosch GmbH
- Power regulation circuit for droop mitigation in a power source voltage that powers a processing core8 Sep 2026US 12,730,490 B2Intel Corporation
- Device and method for measuring leakage current18 Aug 2026US 12,710,456 B2Hitachi Energy Ltd
- Battery management system and method of managing battery using the same18 Aug 2026US 12,712,370 B2Hyundai Mobis Co., Ltd.
- Integrated circuit for power supply and power supply system21 Jul 2026US 12,689,288 B2Fuji Electric Co., Ltd.
- Current sensing capabilities for power semiconductor devices8 Oct 2026US 2026/0309754 A1Microchip Technology Incorporated
- Peak hold device, impedance measurement device, metal deposition detection device, and battery internal temperature estimation device8 Oct 2026US 2026/0309755 A1Kabushiki Kaisha Toyota Chuo Kenkyusho
- Enhanced motor identification and control based on current characteristic response8 Oct 2026US 2026/0309781 A1Tesla, Inc.
- Voltage Monitoring Device8 Oct 2026US 2026/0309794 A1Caterpillar Inc.
- Apparatus and method for diagnosing battery condition8 Oct 2026US 2026/0309799 A1Samsung SDI.Co., Ltd.
Most cited
By later US patents
- Mechanisms for compensating for battery pack failure in powered surgical instruments1,201US 10,292,704 B2Ethicon, Inc. · 2019
- Monitoring technique for accurately determining residual capacity of a battery1,089US 6,157,169 ASamsung Electronics Co., Ltd. · 2000
- 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
- Power line communication and power distribution parameter measurement system and method296US 7,795,877 B2Current Technologies, LLC · 2010