F16L 55/132
The closure device being a plug fixed by radially deforming the packing
Official title: the closure device being a plug fixed by radially deforming the packing
F16L55/132 (The closure device being a plug fixed by radially deforming the packing) appears on 354 US grants and 250 published applications in this corpus.
Search patents in F16L- Granted patents
- 354
- Published applications
- 250
- Assignees
- 171
- Inventors
- 560
- Latest grant
- 8 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 6 | 0 |
| 1977 | 4 | 0 |
| 1978 | 5 | 0 |
| 1979 | 3 | 0 |
| 1980 | 2 | 0 |
| 1981 | 6 | 0 |
| 1982 | 7 | 0 |
| 1983 | 1 | 0 |
| 1984 | 9 | 0 |
| 1985 | 9 | 0 |
| 1986 | 9 | 0 |
| 1987 | 4 | 0 |
| 1988 | 5 | 0 |
| 1989 | 5 | 0 |
| 1990 | 2 | 0 |
| 1991 | 15 | 0 |
| 1992 | 6 | 0 |
| 1993 | 5 | 0 |
| 1994 | 5 | 0 |
| 1995 | 7 | 0 |
| 1996 | 4 | 0 |
| 1997 | 4 | 0 |
| 1998 | 6 | 0 |
| 1999 | 10 | 0 |
| 2000 | 7 | 0 |
| 2001 | 5 | 1 |
| 2002 | 4 | 4 |
| 2003 | 5 | 6 |
| 2004 | 6 | 13 |
| 2005 | 7 | 4 |
| 2006 | 6 | 11 |
| 2007 | 5 | 10 |
| 2008 | 7 | 12 |
| 2009 | 5 | 6 |
| 2010 | 7 | 10 |
| 2011 | 6 | 9 |
| 2012 | 8 | 8 |
| 2013 | 6 | 14 |
| 2014 | 10 | 9 |
| 2015 | 16 | 12 |
| 2016 | 12 | 9 |
| 2017 | 9 | 5 |
| 2018 | 7 | 12 |
| 2019 | 9 | 13 |
| 2020 | 15 | 15 |
| 2021 | 7 | 12 |
| 2022 | 11 | 18 |
| 2023 | 8 | 12 |
| 2024 | 10 | 11 |
| 2025 | 9 | 8 |
| 2026 | 8 | 6 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Single or multi-durometer elastomer, self-actuating, dynamic, stress suppressor for hot tapping tools8 Sep 2026US 12,729,796 B2TDW Delaware, Inc.
- Sewer expansion plug1 Sep 2026US 12,723,395 B1Camco Manufacturing, Inc.
- Deformable sealing plug and process for plugging a cavity using such a sealing plug25 Aug 2026US 12,716,491 B2Airbus Operations GmbH
- Additive inflatable leak check bladder23 Jun 2026US 12,663,330 B2Rtx Corporation
- Blocking device and method16 Jun 2026US 12,655,925 B2Kurodite Industry Co.
- Pipeliner bladder assembly20 Aug 2026US 2026/0243378 A1American Pipelining Solutions LLC
- Mechanical plug25 Jun 2026US 2026/0177183 A1Petersen Resources, LLC
- 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
- Devices and methods for repairing pipes23 Apr 2026US 2026/0110386 A1Mueller International, LLC
Most cited
By later US patents
- Inflatable tubular sleeve for tubing or obturating a well or pipe150US 6,044,906 ADrillflex · 2000
- Inflatable anchor element and packer employing same96US 4,424,861 AHalliburton Company · 1984
- Shell cutter60US 5,044,393 A1991
- Mechanical plug device57US 4,493,344 ACherne Industries Incorporated · 1985
- Apparatus having a tubular inflatable bladder and a grout dispensing nozzle for connecting lateral branches to a relined main55US 4,245,970 A1981