G05F
Systems for regulating electric or magnetic variables
G05F (Systems for regulating electric or magnetic variables) appears on 17,510 US grants and 14,122 published applications in this corpus.
Search patents in G05F- Granted patents
- 17,510
- Published applications
- 14,122
- Assignees
- 3,760
- Inventors
- 24,567
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 113 | 0 |
| 1977 | 120 | 0 |
| 1978 | 87 | 0 |
| 1979 | 77 | 0 |
| 1980 | 66 | 0 |
| 1981 | 106 | 0 |
| 1982 | 102 | 0 |
| 1983 | 81 | 0 |
| 1984 | 111 | 0 |
| 1985 | 93 | 0 |
| 1986 | 119 | 0 |
| 1987 | 148 | 0 |
| 1988 | 120 | 0 |
| 1989 | 161 | 0 |
| 1990 | 145 | 0 |
| 1991 | 136 | 0 |
| 1992 | 174 | 0 |
| 1993 | 177 | 0 |
| 1994 | 193 | 0 |
| 1995 | 195 | 0 |
| 1996 | 283 | 0 |
| 1997 | 295 | 0 |
| 1998 | 301 | 0 |
| 1999 | 352 | 0 |
| 2000 | 318 | 0 |
| 2001 | 337 | 90 |
| 2002 | 307 | 252 |
| 2003 | 271 | 272 |
| 2004 | 290 | 309 |
| 2005 | 250 | 335 |
| 2006 | 294 | 325 |
| 2007 | 277 | 336 |
| 2008 | 252 | 397 |
| 2009 | 316 | 392 |
| 2010 | 322 | 408 |
| 2011 | 324 | 448 |
| 2012 | 316 | 408 |
| 2013 | 426 | 797 |
| 2014 | 572 | 896 |
| 2015 | 749 | 986 |
| 2016 | 882 | 942 |
| 2017 | 971 | 814 |
| 2018 | 943 | 808 |
| 2019 | 1053 | 924 |
| 2020 | 990 | 783 |
| 2021 | 696 | 667 |
| 2022 | 643 | 615 |
| 2023 | 637 | 571 |
| 2024 | 514 | 523 |
| 2025 | 474 | 490 |
| 2026 | 331 | 334 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Main groups
Granted patents with any code in the group
- G05F 1/00Automatic systems in which deviations of an electric quantity from one or11,617
- G05F 3/00Non-retroactive systems for regulating electric variables by using an uncontrolled element, or6,693
- G05F 5/00Systems for regulating electric variables by detecting deviations in the electric input363
- G05F 7/00Regulating magnetic variables43
Recent patents
- Voltage control device and method considering line power loss in voltage drop using CVR factor6 Oct 2026US 12,754,575 B2Crocus Inc.
- Transformer-hybrid variable reactance6 Oct 2026US 12,754,576 B2Clark Power Systems, Inc.
- Methods and devices for controlling a high-voltage generator6 Oct 2026US 12,754,577 B2Shanghai United Imaging Healthcare Co., Ltd.
- Current detection circuit and power supply semiconductor integrated circuit6 Oct 2026US 12,754,578 B2Mitsumi Electric Co., Ltd.
- Low dropout regulator6 Oct 2026US 12,754,579 B2Gigadevice Semiconductor Inc.
- Smart switch with functionalities determined based on a grounded conductor connection8 Oct 2026US 2026/0310248 A1Roku, Inc.
- Voltage control device and operation method thereof8 Oct 2026US 2026/0310249 A1Wistron Corporation
- Adjustable voltage divider circuit and method8 Oct 2026US 2026/0310250 A1Taiwan Semiconductor Manufacturing Company.Ltd
- Voltage regulators with shared decoupling capacitor for memory devices8 Oct 2026US 2026/0310251 A1Taiwan Semiconductor Manufacturing Company.Ltd
- Radio frequency band switching in a power management integrated circuit8 Oct 2026US 2026/0312854 A1Qorvo US, Inc.
Most cited
By later US patents
- Surgical instrument control circuit having a safety processor1,553US 9,690,362 B2Ethicon, Inc. · 2017
- Systems and methods for controlling a segmented circuit1,496US 9,804,618 B2Ethicon, Inc. · 2017
- Power management through segmented circuit and variable voltage protection1,481US 9,733,663 B2Ethicon, Inc. · 2017
- Sterilization verification circuit1,467US 9,826,977 B2Ethicon, Inc. · 2017
- Power management through sleep options of segmented circuit and wake up control1,444US 10,013,049 B2Ethicon, Inc. · 2018