F16L 55/12
By introducing into the pipe a member expandable in situ
Official title: by introducing into the pipe a member expandable in situ (inflatable cut-off valves F16K7/10)
F16L55/12 (By introducing into the pipe a member expandable in situ) appears on 757 US grants and 483 published applications in this corpus.
Search patents in F16L- Granted patents
- 757
- Published applications
- 483
- Assignees
- 332
- Inventors
- 1,122
- Latest grant
- 8 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 15 | 0 |
| 1977 | 9 | 0 |
| 1978 | 15 | 0 |
| 1979 | 7 | 0 |
| 1980 | 9 | 0 |
| 1981 | 16 | 0 |
| 1982 | 14 | 0 |
| 1983 | 13 | 0 |
| 1984 | 24 | 0 |
| 1985 | 20 | 0 |
| 1986 | 16 | 0 |
| 1987 | 15 | 0 |
| 1988 | 17 | 0 |
| 1989 | 20 | 0 |
| 1990 | 8 | 0 |
| 1991 | 20 | 0 |
| 1992 | 13 | 0 |
| 1993 | 10 | 0 |
| 1994 | 15 | 0 |
| 1995 | 17 | 0 |
| 1996 | 10 | 0 |
| 1997 | 12 | 0 |
| 1998 | 11 | 0 |
| 1999 | 15 | 0 |
| 2000 | 11 | 0 |
| 2001 | 10 | 1 |
| 2002 | 11 | 10 |
| 2003 | 8 | 12 |
| 2004 | 13 | 15 |
| 2005 | 11 | 14 |
| 2006 | 11 | 20 |
| 2007 | 9 | 15 |
| 2008 | 10 | 20 |
| 2009 | 13 | 12 |
| 2010 | 15 | 26 |
| 2011 | 11 | 21 |
| 2012 | 15 | 11 |
| 2013 | 12 | 21 |
| 2014 | 13 | 18 |
| 2015 | 23 | 30 |
| 2016 | 22 | 13 |
| 2017 | 19 | 13 |
| 2018 | 14 | 21 |
| 2019 | 17 | 28 |
| 2020 | 30 | 27 |
| 2021 | 18 | 23 |
| 2022 | 24 | 34 |
| 2023 | 24 | 25 |
| 2024 | 19 | 22 |
| 2025 | 14 | 19 |
| 2026 | 19 | 12 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Combined drilling and stopping system8 Sep 2026US 12,729,795 B2Mueller International, LLC
- 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
- Valve gates28 Jul 2026US 12,692,948 B2Romac Industries, Inc.
- Conduit security techniques17 Sep 2026US 2026/0276127 A1Scott Lock Company
- System and Method for Installing a Manifold Plug10 Sep 2026US 2026/0264202 A1Engineered Inserts & Systems, Inc.
- Pipeliner bladder assembly20 Aug 2026US 2026/0243378 A1American Pipelining Solutions LLC
- System and method for installing a manifold plug13 Aug 2026US 2026/0233370 A1Engineered Inserts & Systems, Inc.
- Bushing, Control Bar Lock, and Housing for Manually Operated Plugging Machine13 Aug 2026US 2026/0235245 A1R.B. Williamson Energy Advisors LLC
Most cited
By later US patents
- Deformable member175US 6,896,049 B2Zeroth Technology Ltd. · 2005
- Inflatable tubular sleeve for tubing or obturating a well or pipe150US 6,044,906 ADrillflex · 2000
- Pipeline vehicle141US 4,852,391 ADen Norske Stats Oljeselskap A.S. · 1989
- Annular tube-like driver127US 4,637,436 ARaychem Corporation · 1987
- Article for sealing well castings in the earth122US 4,919,989 AAmerican Colloid Company · 1990