F16L 2101/00
Uses or applications of pigs or moles
F16L2101/00 (Uses or applications of pigs or moles) appears on 843 US grants and 975 published applications in this corpus.
Search patents in F16L- Granted patents
- 843
- Published applications
- 975
- Assignees
- 512
- Inventors
- 1,987
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 6 | 0 |
| 1977 | 1 | 0 |
| 1978 | 1 | 0 |
| 1979 | 2 | 0 |
| 1980 | 0 | 0 |
| 1981 | 1 | 0 |
| 1982 | 1 | 0 |
| 1983 | 2 | 0 |
| 1984 | 0 | 0 |
| 1985 | 5 | 0 |
| 1986 | 0 | 0 |
| 1987 | 1 | 0 |
| 1988 | 4 | 0 |
| 1989 | 2 | 0 |
| 1990 | 1 | 0 |
| 1991 | 2 | 0 |
| 1992 | 6 | 0 |
| 1993 | 4 | 0 |
| 1994 | 8 | 0 |
| 1995 | 9 | 0 |
| 1996 | 4 | 0 |
| 1997 | 5 | 0 |
| 1998 | 2 | 0 |
| 1999 | 4 | 0 |
| 2000 | 6 | 0 |
| 2001 | 3 | 0 |
| 2002 | 4 | 5 |
| 2003 | 4 | 12 |
| 2004 | 10 | 10 |
| 2005 | 9 | 19 |
| 2006 | 8 | 18 |
| 2007 | 13 | 10 |
| 2008 | 8 | 23 |
| 2009 | 11 | 16 |
| 2010 | 17 | 17 |
| 2011 | 9 | 16 |
| 2012 | 13 | 17 |
| 2013 | 14 | 17 |
| 2014 | 21 | 11 |
| 2015 | 14 | 30 |
| 2016 | 24 | 39 |
| 2017 | 33 | 41 |
| 2018 | 34 | 72 |
| 2019 | 42 | 67 |
| 2020 | 64 | 101 |
| 2021 | 70 | 84 |
| 2022 | 60 | 85 |
| 2023 | 89 | 84 |
| 2024 | 83 | 59 |
| 2025 | 66 | 82 |
| 2026 | 43 | 40 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
- F16L 2101/30Inspecting, measuring or testingIndexing code518
- F16L 2101/10Treating the inside of pipesIndexing code356
- F16L 2101/50Pulling cables or the likeIndexing code45
- F16L 2101/60Stopping leaksIndexing code34
- F16L 2101/40Separating transported fluidsIndexing code26
- F16L 2101/20Expelling gases or fluidsIndexing code24
- F16L 2101/70Drill-well operationsIndexing code24
Recent patents
- Method and tool for inspecting the condition of the internal surface of pipes6 Oct 2026US 12,753,874 B2Petroleo Brasileiro S.A. - Petrobras
- Pipe inspection camera system15 Sep 2026US 12,736,169 B2Shenzhen Andelian Technology Co., Ltd.
- Devices for performing maintenance in a pipeline and methods for driving the devices toward a launch port1 Sep 2026US 12,723,698 B1Weldfit LLC
- Method and apparatus for cleaning and inspecting oil well drilling mud flow lines25 Aug 2026US 12,715,025 B1Tri-State Environmental, LLC
- Tool carrier comprising a wheel driving module, and tool carrier train25 Aug 2026US 12,716,542 B2Westinghouse Electric Nuclear Field Services France
- In-line detector for geometric deformation of non-metallic pipeline with automatic jam release function24 Sep 2026US 2026/0287320 A1Changzhou University
- Intelligent suction-type underground drainage pipeline sediment removal robot and sediment removal method17 Sep 2026US 2026/0273592 A1Zhengzhou University
- Method and internet of things system for liquid accumulation supervision in smart gas pipelines17 Sep 2026US 2026/0276159 A1Chengdu Qinchuan Iot Technology Co., Ltd.
- Pigging, a manifold valve block and fluid flow control10 Sep 2026US 2026/0266163 A1Baker Hughes Energy Technology UK Limited
- Robot for trenchless pipeline and manhole rehabilitation3 Sep 2026US 2026/0258897 A1
Most cited
By later US patents
- Self-powered pipeline vehicle for carrying out an operation on a pipeline and method186US 6,031,371 ABG plc · 2000
- Gas main robotic inspection system178US 6,917,176 B2Carnegie Mellon University · 2005
- Pipeline vehicle157US 5,878,783 ABritish Gas Corporation · 1999
- Pipeline vehicle with linked modules and carriages148US 6,107,795 ABritish Gas Corporation · 2000
- Cornering pipe traveler143US 5,172,639 AGas Research Institute · 1992