F16L 59/20
For non-disconnectable joints
Official title: for non-disconnectable joints
F16L59/20 (For non-disconnectable joints) appears on 120 US grants and 100 published applications in this corpus.
Search patents in F16L- Granted patents
- 120
- Published applications
- 100
- Assignees
- 81
- Inventors
- 226
- Latest grant
- 5 May 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 3 | 0 |
| 1977 | 1 | 0 |
| 1978 | 2 | 0 |
| 1979 | 1 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 2 | 0 |
| 1984 | 2 | 0 |
| 1985 | 4 | 0 |
| 1986 | 3 | 0 |
| 1987 | 3 | 0 |
| 1988 | 2 | 0 |
| 1989 | 3 | 0 |
| 1990 | 0 | 0 |
| 1991 | 1 | 0 |
| 1992 | 1 | 0 |
| 1993 | 3 | 0 |
| 1994 | 1 | 0 |
| 1995 | 1 | 0 |
| 1996 | 2 | 0 |
| 1997 | 1 | 0 |
| 1998 | 3 | 0 |
| 1999 | 3 | 0 |
| 2000 | 3 | 0 |
| 2001 | 5 | 1 |
| 2002 | 1 | 3 |
| 2003 | 0 | 0 |
| 2004 | 1 | 0 |
| 2005 | 0 | 1 |
| 2006 | 0 | 0 |
| 2007 | 0 | 2 |
| 2008 | 1 | 1 |
| 2009 | 1 | 1 |
| 2010 | 1 | 4 |
| 2011 | 1 | 4 |
| 2012 | 0 | 3 |
| 2013 | 2 | 7 |
| 2014 | 4 | 7 |
| 2015 | 3 | 8 |
| 2016 | 5 | 14 |
| 2017 | 5 | 8 |
| 2018 | 8 | 6 |
| 2019 | 10 | 11 |
| 2020 | 8 | 5 |
| 2021 | 5 | 6 |
| 2022 | 9 | 1 |
| 2023 | 3 | 1 |
| 2024 | 0 | 4 |
| 2025 | 0 | 2 |
| 2026 | 2 | 0 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Insulated welded joint for pipe-in-pipe systems5 May 2026US 12,618,505 B2XGS Energy, Inc.
- Monitoring of lined pipeline31 Mar 2026US 12,590,665 B2Pioneer Lining Technology Limited
- Insulating inserts for field joints of coated rigid pipelines10 Oct 2023US 11,781,700 B2Subsea 7 Lijmited
- Applicator machine6 Jun 2023US 11,668,428 B2Pipeline Induction Heat Limited
- Method for connecting two unitary elements of a conduit for transporting fluids by means of a sleeve24 Jan 2023US 11,559,949 B2Saipem S.P.A.
- Insulated steel pipe and its method of manufacture18 Dec 2025US 2025/0382489 A12543500 Alberta Ltd., D.B.A. Shaw Pipe Protection
- Field joint mold assembly and method of insulating a field joint17 Apr 2025US 2025/0121539 A1Bayou HoldCo, Inc.
- Insulated Welded Joint for Pipe-in-Pipe systems17 Oct 2024US 2024/0344649 A1XGS Energy, Inc.
- Monitoring of Lined Pipeline11 Apr 2024US 2024/0117916 A1Pioneer Lining Technology Limited
- Method for welding and assembling a component28 Mar 2024US 2024/0102602 A1
Most cited
By later US patents
- Tubular article118US 5,070,597 ARaychem Corporation · 1991
- Coated recoverable articles74US 4,732,412 ARaychem Corporation · 1988
- Phase change insulation for subsea flowlines53US 6,000,438 AMcDermott Technology, Inc. · 1999
- Heat-insulated pipe-lines50US 4,162,093 A1979
- Pipeline secondary containment system and method46US 5,176,025 AE. O. Butts Consultants Ltd. · 1993