F16L 45/00
Pipe units with cleaning aperture and closure therefor
F16L45/00 (Pipe units with cleaning aperture and closure therefor) appears on 88 US grants and 62 published applications in this corpus.
Search patents in F16L- Granted patents
- 88
- Published applications
- 62
- Assignees
- 68
- Inventors
- 170
- Latest grant
- 25 Aug 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 6 | 0 |
| 1977 | 0 | 0 |
| 1978 | 0 | 0 |
| 1979 | 0 | 0 |
| 1980 | 1 | 0 |
| 1981 | 2 | 0 |
| 1982 | 2 | 0 |
| 1983 | 2 | 0 |
| 1984 | 2 | 0 |
| 1985 | 2 | 0 |
| 1986 | 2 | 0 |
| 1987 | 1 | 0 |
| 1988 | 2 | 0 |
| 1989 | 2 | 0 |
| 1990 | 2 | 0 |
| 1991 | 4 | 0 |
| 1992 | 2 | 0 |
| 1993 | 1 | 0 |
| 1994 | 0 | 0 |
| 1995 | 1 | 0 |
| 1996 | 4 | 0 |
| 1997 | 0 | 0 |
| 1998 | 1 | 0 |
| 1999 | 1 | 0 |
| 2000 | 2 | 0 |
| 2001 | 0 | 0 |
| 2002 | 3 | 2 |
| 2003 | 4 | 2 |
| 2004 | 0 | 0 |
| 2005 | 1 | 0 |
| 2006 | 0 | 0 |
| 2007 | 0 | 0 |
| 2008 | 0 | 0 |
| 2009 | 0 | 2 |
| 2010 | 0 | 4 |
| 2011 | 0 | 0 |
| 2012 | 3 | 3 |
| 2013 | 1 | 3 |
| 2014 | 2 | 8 |
| 2015 | 4 | 4 |
| 2016 | 2 | 5 |
| 2017 | 4 | 5 |
| 2018 | 4 | 5 |
| 2019 | 2 | 2 |
| 2020 | 4 | 3 |
| 2021 | 4 | 4 |
| 2022 | 1 | 5 |
| 2023 | 4 | 0 |
| 2024 | 2 | 2 |
| 2025 | 0 | 3 |
| 2026 | 1 | 0 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Transfer device25 Aug 2026US 12,716,536 B2Chargepoint Technology Limited
- Through-air apparatus to reduce infiltration of ambient air18 Jun 2024US 12,012,697 B2Valmet Corporation
- Pipe cleaning assembly and method of cleaning a piping system using the same2 Apr 2024US 11,945,011 B2Fisher Controls International LLC
- Pipe cleaning assembly and method of cleaning a piping system using the same3 Oct 2023US 11,772,139 B2Fisher Controls International LLC
- Black tank sewer flush adapter29 Aug 2023US 11,739,874 B2
- Lid and lid system27 Nov 2025US 2025/0361710 A1Jets AS
- Closure adapter30 Oct 2025US 2025/0334214 A1National Oilwell Varco, L. P.
- Sewer cleanout cap and methods13 Mar 2025US 2025/0084946 A1
- Weight-optimized fluid-bearing pipe fittings enhancing fluid delivery system performance23 May 2024US 2024/0167607 A1Fhe USA LLC
- Transfer device2 May 2024US 2024/0142033 A1Chargepoint Technology Limited
Most cited
By later US patents
- Horn shaped multi-inlet pipe fitting540US 4,181,330 A1980
- Method for remotely launching subsea pigs in response to wellhead pressure change97US 6,022,421 ASonsub International Ltd. · 2000
- Methods and apparatus for purging liquid from an offshore pipeline and/or scanning a pipeline interior74US 3,961,493 ABrown & Root, Inc. · 1976
- pipeline bulk residue remover and method35US 4,827,553 A1989
- Combined respirator and catheter suction adapter34US 4,291,691 ANovametrix Medical Systems, Inc. · 1981