G01R 27/04
In circuits having distributed constants
Official title: in circuits having distributed constants {, e.g. having very long conductors or involving high frequencies}
G01R27/04 (In circuits having distributed constants) appears on 531 US grants and 362 published applications in this corpus.
Search patents in G01R- Granted patents
- 531
- Published applications
- 362
- Assignees
- 344
- Inventors
- 1,003
- Latest grant
- 29 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 7 | 0 |
| 1978 | 15 | 0 |
| 1979 | 5 | 0 |
| 1980 | 3 | 0 |
| 1981 | 12 | 0 |
| 1982 | 8 | 0 |
| 1983 | 4 | 0 |
| 1984 | 5 | 0 |
| 1985 | 8 | 0 |
| 1986 | 14 | 0 |
| 1987 | 4 | 0 |
| 1988 | 13 | 0 |
| 1989 | 9 | 0 |
| 1990 | 8 | 0 |
| 1991 | 3 | 0 |
| 1992 | 7 | 0 |
| 1993 | 4 | 0 |
| 1994 | 4 | 0 |
| 1995 | 5 | 0 |
| 1996 | 8 | 0 |
| 1997 | 3 | 0 |
| 1998 | 5 | 0 |
| 1999 | 6 | 0 |
| 2000 | 10 | 0 |
| 2001 | 8 | 2 |
| 2002 | 6 | 6 |
| 2003 | 5 | 3 |
| 2004 | 5 | 11 |
| 2005 | 9 | 20 |
| 2006 | 17 | 7 |
| 2007 | 11 | 7 |
| 2008 | 6 | 19 |
| 2009 | 12 | 10 |
| 2010 | 6 | 17 |
| 2011 | 9 | 9 |
| 2012 | 7 | 12 |
| 2013 | 9 | 12 |
| 2014 | 12 | 13 |
| 2015 | 15 | 19 |
| 2016 | 17 | 16 |
| 2017 | 21 | 21 |
| 2018 | 28 | 18 |
| 2019 | 26 | 21 |
| 2020 | 23 | 17 |
| 2021 | 23 | 25 |
| 2022 | 16 | 24 |
| 2023 | 19 | 12 |
| 2024 | 19 | 17 |
| 2025 | 19 | 19 |
| 2026 | 12 | 5 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Phase discriminator for reflected waves and operating method thereof29 Sep 2026US 12,748,138 B2Electronics and Telecommunications Research Institute
- Synthetic load pull tuning probe and methods4 Aug 2026US 12,699,157 B1
- System for sensing the position of a movable electrical contact16 Jun 2026US 12,658,654 B2Sanmina Corporation
- Material metric measurement26 May 2026US 12,637,651 B2DEKA Products Limited Partneship
- Method and ethernet physical layer device for detecting, classifying and localizing cable faults of an ethernet physical cable, particularly an automotive ethernet PHY, using a time domain reflectometry algorithm5 May 2026US 12,618,889 B2Siliconally GmbH
- Power detection18 Jun 2026US 2026/0172064 A1Huawei Technologies Co., Ltd.
- Electronic Devices with Background-Cancelled Ultra Short Range Object Detection19 Mar 2026US 2026/0079247 A1Apple Inc.
- Methods and apparatus for component/system testing under modulated signals using frequency extenders5 Mar 2026US 2026/0063694 A1
- System and method for linearizing frequency multipliers with constrained transmitter bandwidth5 Mar 2026US 2026/0066943 A1
- System and method for monitoring vswr in radio system8 Jan 2026US 2026/0012267 A1Jio Platforms Limited
Most cited
By later US patents
- Wireless power transmission system, and method for controlling wireless power transmission and wireless power reception273US 8,946,940 B2Samsung Electronics Co., Ltd. · 2015
- Methods for the measurement of the frequency dependent complex propagation matrix, impedance matrix and admittance matrix of coupled transmission lines166US 5,502,392 AInternational Business Machines Corporation · 1996
- Non-intrusive appliance monitor apparatus159US 4,858,141 AElectric Power Research Institute, Inc. · 1989
- Systems and methods for implementing S/SSTDR measurements138US 9,244,117 B2LiveWire Innovation, Inc. · 2016
- Systems and methods for implementing S/SSTDR measurements133US 9,476,932 B2University of Utah Foundation · 2016