G01R 31/11
Using pulse reflection methods
Official title: using pulse reflection methods
G01R31/11 (Using pulse reflection methods) appears on 561 US grants and 513 published applications in this corpus.
Search patents in G01R- Granted patents
- 561
- Published applications
- 513
- Assignees
- 343
- Inventors
- 1,144
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 5 | 0 |
| 1978 | 2 | 0 |
| 1979 | 3 | 0 |
| 1980 | 1 | 0 |
| 1981 | 2 | 0 |
| 1982 | 1 | 0 |
| 1983 | 0 | 0 |
| 1984 | 2 | 0 |
| 1985 | 3 | 0 |
| 1986 | 1 | 0 |
| 1987 | 3 | 0 |
| 1988 | 6 | 0 |
| 1989 | 8 | 0 |
| 1990 | 2 | 0 |
| 1991 | 3 | 0 |
| 1992 | 4 | 0 |
| 1993 | 5 | 0 |
| 1994 | 5 | 0 |
| 1995 | 2 | 0 |
| 1996 | 7 | 0 |
| 1997 | 4 | 0 |
| 1998 | 5 | 0 |
| 1999 | 3 | 0 |
| 2000 | 11 | 0 |
| 2001 | 5 | 0 |
| 2002 | 11 | 14 |
| 2003 | 10 | 16 |
| 2004 | 13 | 23 |
| 2005 | 25 | 21 |
| 2006 | 30 | 14 |
| 2007 | 19 | 10 |
| 2008 | 8 | 3 |
| 2009 | 9 | 10 |
| 2010 | 7 | 16 |
| 2011 | 11 | 22 |
| 2012 | 11 | 7 |
| 2013 | 15 | 15 |
| 2014 | 11 | 14 |
| 2015 | 16 | 23 |
| 2016 | 20 | 24 |
| 2017 | 18 | 33 |
| 2018 | 28 | 34 |
| 2019 | 40 | 39 |
| 2020 | 34 | 25 |
| 2021 | 27 | 32 |
| 2022 | 27 | 22 |
| 2023 | 19 | 16 |
| 2024 | 19 | 27 |
| 2025 | 21 | 36 |
| 2026 | 18 | 17 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Apparatus and method to detect and locate a fault in a shielded conductor6 Oct 2026US 12,754,225 B2GE Aviation Systems LLC
- Coupler for coupling high-frequency EM energy with cables8 Sep 2026US 12,730,134 B2Connected Intelligence Systems Ltd.
- Systems and methods for measuring waveforms at devices under test25 Aug 2026US 12,716,937 B2Keysight Technologies, Inc.
- Analyzing bundles of wires18 Aug 2026US 12,710,463 B2Teradyne, Inc.
- Fault detection method18 Aug 2026US 12,710,464 B2DAC System SA
- Method of monitoring the integrity and determining damage location on body of object8 Oct 2026US 2026/0309764 A1
- Test and/or measurement system8 Oct 2026US 2026/0309826 A1
- System and method for prioritising maintenance actions in electric power grids17 Sep 2026US 2026/0280283 A1Safegrid Oy
- Determination device and determination method6 Aug 2026US 2026/0230110 A1Sumitomo Electric Industries, Ltd.
- Techniques for visualizing multiple time domain reflectometry waveforms2 Jul 2026US 2026/0186028 A1Essai, Inc.
Most cited
By later US patents
- Method and apparatus for transmission line analysis268US 6,934,655 B2Mindspeed Technologies, Inc. · 2005
- Detection of bridge tap using frequency domain analysis258US 6,177,801 B1Sunrise Telecom Incorporated · 2001
- time-domain reflectometer for testing coaxial cables245US 5,586,054 AFluke Corporation · 1996
- Fault and splice finding system and method199US 5,352,984 ACable Repair Systems Corporation · 1994
- Device and method for network communications and diagnostics186US 6,532,215 B1Cisco Technology, Inc. · 2003