F16L 55/1286
The closing device being a cap
Official title: {The closing device being a cap}
F16L55/1286 (The closing device being a cap) appears on 16 US grants and 14 published applications in this corpus.
Search patents in F16L- Granted patents
- 16
- Published applications
- 14
- Assignees
- 12
- Inventors
- 22
- Latest grant
- 16 Jun 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1978 | 1 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 2 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 0 |
| 2003 | 0 | 0 |
| 2004 | 0 | 0 |
| 2005 | 0 | 0 |
| 2006 | 0 | 0 |
| 2007 | 0 | 0 |
| 2008 | 1 | 1 |
| 2009 | 2 | 1 |
| 2010 | 0 | 0 |
| 2011 | 0 | 1 |
| 2012 | 0 | 0 |
| 2013 | 0 | 0 |
| 2014 | 0 | 1 |
| 2015 | 0 | 1 |
| 2016 | 1 | 1 |
| 2017 | 2 | 0 |
| 2018 | 1 | 0 |
| 2019 | 0 | 2 |
| 2020 | 2 | 2 |
| 2021 | 1 | 0 |
| 2022 | 1 | 1 |
| 2023 | 0 | 1 |
| 2024 | 0 | 1 |
| 2025 | 0 | 0 |
| 2026 | 2 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
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- System, method and apparatus for debris shield for squeeze-activated retainer for a conduit24 Aug 2021US 11,098,834 B2North American Pipe Corporation
- Devices, systems, and methods for locking a conduit21 Apr 2020US 10,627,037 B2
- Conduit security techniques17 Sep 2026US 2026/0276127 A1Scott Lock Company
- Device for the removable locking of a plug to a pipeline fitting8 Feb 2024US 2024/0044436 A1I.S.I.F. S.R.L.
- Disk with adjustable outer diameter13 Jul 2023US 2023/0220940 A1Inventions, Plus LLC
- Conduit security techniques18 Aug 2022US 2022/0260193 A1Scott Lock Company
- Conduit locking device30 Jul 2020US 2020/0240568 A1Scott Lock Company
Most cited
By later US patents
- Gill-type tip protector for sealing open tubes and the like59US 4,095,810 ABaxter Travenol Laboratories, Inc. · 1978
- Pressure test cap19US 4,809,751 AUnited Technologies Corporation · 1989
- Pneumatic pressure relief test plug16US 7,597,118 B1IPS Corporation · 2009
- Inflatable plug with flange9US 7,455,077 B22008
- Nozzle dam sealing system8US 4,826,036 ACombustion Engineering, Inc. · 1989