G01M 3/243
For pipes
Official title: {for pipes}
G01M3/243 (For pipes) appears on 476 US grants and 520 published applications in this corpus.
Search patents in G01M- Granted patents
- 476
- Published applications
- 520
- Assignees
- 285
- Inventors
- 1,057
- Latest grant
- 29 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 3 | 0 |
| 1977 | 4 | 0 |
| 1978 | 2 | 0 |
| 1979 | 2 | 0 |
| 1980 | 1 | 0 |
| 1981 | 1 | 0 |
| 1982 | 2 | 0 |
| 1983 | 1 | 0 |
| 1984 | 6 | 0 |
| 1985 | 2 | 0 |
| 1986 | 1 | 0 |
| 1987 | 2 | 0 |
| 1988 | 2 | 0 |
| 1989 | 2 | 0 |
| 1990 | 1 | 0 |
| 1991 | 5 | 0 |
| 1992 | 4 | 0 |
| 1993 | 1 | 0 |
| 1994 | 4 | 0 |
| 1995 | 9 | 0 |
| 1996 | 6 | 0 |
| 1997 | 5 | 0 |
| 1998 | 3 | 0 |
| 1999 | 5 | 0 |
| 2000 | 3 | 0 |
| 2001 | 3 | 1 |
| 2002 | 6 | 5 |
| 2003 | 4 | 3 |
| 2004 | 8 | 7 |
| 2005 | 4 | 5 |
| 2006 | 2 | 7 |
| 2007 | 2 | 2 |
| 2008 | 4 | 9 |
| 2009 | 4 | 1 |
| 2010 | 3 | 12 |
| 2011 | 2 | 12 |
| 2012 | 8 | 11 |
| 2013 | 6 | 23 |
| 2014 | 11 | 17 |
| 2015 | 13 | 31 |
| 2016 | 8 | 19 |
| 2017 | 23 | 36 |
| 2018 | 23 | 42 |
| 2019 | 34 | 39 |
| 2020 | 41 | 33 |
| 2021 | 34 | 33 |
| 2022 | 34 | 46 |
| 2023 | 36 | 33 |
| 2024 | 29 | 38 |
| 2025 | 27 | 23 |
| 2026 | 30 | 32 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Pipeline leakage monitoring method and system based on optical fiber sensing29 Sep 2026US 12,748,011 B2Anhui Zhibo Photoelectric Technology Co., Ltd.
- Data processing device and method22 Sep 2026US 12,742,699 B2Hitachi, Ltd.
- Method and system for unobstrusive automatic leak event detection in real-time conduit by template selection15 Sep 2026US 12,736,433 B2Tata Consultancy Services Limited
- High resolution imaging of pressurized water supply lines using high frequency acoustic waves8 Sep 2026US 12,730,030 B2The Hong Kong University of Science and Technology
- Refrigerant leak detector and air conditioner including refrigerant leak detector1 Sep 2026US 12,723,770 B2Changwon National University Industry Academy Cooperation Corps
- Heat exchanger state sensing apparatus and method of use thereof8 Oct 2026US 2026/0309435 A1
- Leak detection based on acoustic and pressure signals24 Sep 2026US 2026/0287462 A1Neptune Technology Group Inc.
- Hydrogen leak detector and method for detecting hydrogen leaks17 Sep 2026US 2026/0276468 A1Inficon GmbH
- Systems and methods for detecting and preventing damage to pipes17 Sep 2026US 2026/0276474 A1State Farm Mutual Automobile Insurance Company
- A device for detecting blockages in water pipes, and a method for detecting blockages by means of such a device20 Aug 2026US 2026/0243382 A1Aganova S.L.
Most cited
By later US patents
- Sonic apparatus and method for detecting the presence of a gaseous substance in a closed space355US 4,574,615 AThe Babcock & Wilcox Company · 1986
- PC multimedia-based leak detection system for water transmission and distribution pipes148US 6,453,247 B1National Research Council of Canada · 2002
- Detection of leaks in pipelines141US 5,416,724 ARensselaer Polytechnic Institute · 1995
- Method and apparatus for detecting leaks in pipelines using cross-correlation techniques128US 5,205,173 APalmer Environmental Services · 1993
- Monitoring vibrations in a pipeline network126US 6,567,006 B1Flow Metrix, Inc. · 2003