F16L 55/136
The closure device being a plug fixed by radially expanding or deforming
Official title: the closure device being a plug fixed by radially expanding or deforming a split ring, hooks or the like
F16L55/136 (The closure device being a plug fixed by radially expanding or deforming) appears on 138 US grants and 95 published applications in this corpus.
Search patents in F16L- Granted patents
- 138
- Published applications
- 95
- Assignees
- 75
- Inventors
- 205
- Latest grant
- 16 Jun 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 7 | 0 |
| 1977 | 2 | 0 |
| 1978 | 1 | 0 |
| 1979 | 1 | 0 |
| 1980 | 2 | 0 |
| 1981 | 4 | 0 |
| 1982 | 5 | 0 |
| 1983 | 3 | 0 |
| 1984 | 3 | 0 |
| 1985 | 1 | 0 |
| 1986 | 6 | 0 |
| 1987 | 4 | 0 |
| 1988 | 6 | 0 |
| 1989 | 4 | 0 |
| 1990 | 1 | 0 |
| 1991 | 2 | 0 |
| 1992 | 2 | 0 |
| 1993 | 1 | 0 |
| 1994 | 1 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 1 | 0 |
| 1998 | 1 | 0 |
| 1999 | 3 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 1 | 2 |
| 2003 | 0 | 2 |
| 2004 | 3 | 1 |
| 2005 | 1 | 4 |
| 2006 | 2 | 5 |
| 2007 | 2 | 3 |
| 2008 | 2 | 0 |
| 2009 | 3 | 3 |
| 2010 | 1 | 10 |
| 2011 | 4 | 6 |
| 2012 | 7 | 1 |
| 2013 | 2 | 3 |
| 2014 | 1 | 3 |
| 2015 | 3 | 11 |
| 2016 | 5 | 1 |
| 2017 | 5 | 3 |
| 2018 | 2 | 1 |
| 2019 | 1 | 2 |
| 2020 | 5 | 6 |
| 2021 | 3 | 5 |
| 2022 | 7 | 12 |
| 2023 | 7 | 4 |
| 2024 | 6 | 4 |
| 2025 | 2 | 0 |
| 2026 | 2 | 3 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Device for the removable locking of a plug to a pipeline fitting16 Jun 2026US 12,655,926 B2I.S.I.F. S.R.L.
- Conduit security techniques24 Feb 2026US 12,560,268 B2Scott Lock Company
- Activation system for pipeline plug24 Jun 2025US 12,338,934 B2TDW Delaware, Inc.
- Gripper assembly for pipeline isolation tool and methods of use6 May 2025US 12,292,151 B2TDW Delaware, Inc.
- Completion plug safety indicator and method for its use1 Oct 2024US 12,104,738 B2TDW Delaware, Inc.
- Conduit security techniques17 Sep 2026US 2026/0276127 A1Scott Lock Company
- Motion activated safety relief for isolation test plug11 Jun 2026US 2026/0160374 A1USA Industries, Inc.
- Pipeline Plug Module with Protection Bars forming a Strong Beam11 Jun 2026US 2026/0160376 A1TDW Offshore Services AS
- Gripping apparatus and devices for plugging of pipes, orifices or connecting7 Nov 2024US 2024/0369171 A1USA Industries, Inc.
- Completion Plug Safety Indicator And Method For Its Use4 Apr 2024US 2024/0110656 A1TDW Delaware, Inc.
Most cited
By later US patents
- Deformable member175US 6,896,049 B2Zeroth Technology Ltd. · 2005
- Compression sleeve tube repair121US 4,485,847 ACombustion Engineering, Inc. · 1984
- Assembly including tubular bodies and mated with a compression loaded adhesive bond117US 5,984,369 ACordant Technologies Inc. · 1999
- Inner diameter pipe plug66US 5,797,431 AEST Group, Inc. · 1998
- Pipe tester plug47US 4,381,800 AThaxton, Inc. · 1983