F16L 55/11
Plugs
Official title: Plugs {(F16L55/128 takes precedence)}
F16L55/11 (Plugs) appears on 565 US grants and 523 published applications in this corpus.
Search patents in F16L- Granted patents
- 565
- Published applications
- 523
- Assignees
- 344
- Inventors
- 1,045
- Latest grant
- 15 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 3 | 0 |
| 1978 | 2 | 0 |
| 1979 | 6 | 0 |
| 1980 | 3 | 0 |
| 1981 | 5 | 0 |
| 1982 | 3 | 0 |
| 1983 | 1 | 0 |
| 1984 | 2 | 0 |
| 1985 | 2 | 0 |
| 1986 | 2 | 0 |
| 1987 | 5 | 0 |
| 1988 | 6 | 0 |
| 1989 | 5 | 0 |
| 1990 | 5 | 0 |
| 1991 | 5 | 0 |
| 1992 | 3 | 0 |
| 1993 | 10 | 0 |
| 1994 | 14 | 0 |
| 1995 | 15 | 0 |
| 1996 | 7 | 0 |
| 1997 | 7 | 0 |
| 1998 | 8 | 0 |
| 1999 | 8 | 0 |
| 2000 | 12 | 0 |
| 2001 | 8 | 2 |
| 2002 | 5 | 6 |
| 2003 | 10 | 6 |
| 2004 | 8 | 12 |
| 2005 | 6 | 17 |
| 2006 | 9 | 10 |
| 2007 | 4 | 8 |
| 2008 | 8 | 22 |
| 2009 | 9 | 7 |
| 2010 | 9 | 15 |
| 2011 | 11 | 16 |
| 2012 | 8 | 14 |
| 2013 | 9 | 18 |
| 2014 | 16 | 26 |
| 2015 | 22 | 34 |
| 2016 | 29 | 18 |
| 2017 | 23 | 23 |
| 2018 | 19 | 25 |
| 2019 | 18 | 26 |
| 2020 | 32 | 37 |
| 2021 | 29 | 35 |
| 2022 | 33 | 40 |
| 2023 | 28 | 35 |
| 2024 | 34 | 31 |
| 2025 | 22 | 29 |
| 2026 | 16 | 11 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Apparatus for removable mounting of a hose into an air-conditioning duct15 Sep 2026US 12,736,167 B2
- Single or multi-durometer elastomer, self-actuating, dynamic, stress suppressor for hot tapping tools8 Sep 2026US 12,729,796 B2TDW Delaware, Inc.
- Device for closing off a segment of pipe-in-pipe pipeline comprising a water detector25 Aug 2026US 12,716,540 B2Itp SA
- Fluid end assembly18 Aug 2026US 12,710,039 B2Kerr Machine Co.
- Suction pile equipment16 Jun 2026US 12,655,593 B2Delta Subsea LLC
- Plugging head equalizer valve1 Oct 2026US 2026/0298390 A1Saudi Arabian Oil Company
- System and Method for Installing a Manifold Plug10 Sep 2026US 2026/0264202 A1Engineered Inserts & Systems, Inc.
- Fluid isolation assembly for etching inner surface of pipe end10 Sep 2026US 2026/0266412 A1Tech Met, Inc.
- System and method for installing a manifold plug13 Aug 2026US 2026/0233370 A1Engineered Inserts & Systems, Inc.
- Mechanical plug25 Jun 2026US 2026/0177183 A1Petersen Resources, LLC
Most cited
By later US patents
- High pressure liquid containment joint for hydraulic aerator149US 5,291,842 AThe Toro Company · 1994
- Frac manifold missile and fitting148US 10,982,523 B1KHOLLE Magnolia 2015, LLC · 2021
- Flowline junction fittings for frac systems127US 10,662,749 B1KHOLLE Magnolia 2015, LLC · 2020
- Synchronized dual thread connector123US 5,452,748 A1995
- Mud pump receiving flange and plug retainer111US 7,866,346 B12011