F16L 13/0209
Male-female welded joints
Official title: {Male-female welded joints (F16L13/0245 and F16L13/0254 take precedence)}
F16L13/0209 (Male-female welded joints) appears on 71 US grants and 96 published applications in this corpus.
Search patents in F16L- Granted patents
- 71
- Published applications
- 96
- Assignees
- 72
- Inventors
- 185
- Latest grant
- 4 Aug 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 0 | 0 |
| 1978 | 0 | 0 |
| 1979 | 1 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 1 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 2 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 1 | 0 |
| 1997 | 1 | 0 |
| 1998 | 0 | 0 |
| 1999 | 1 | 0 |
| 2000 | 1 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 0 |
| 2003 | 1 | 0 |
| 2004 | 1 | 1 |
| 2005 | 0 | 2 |
| 2006 | 3 | 6 |
| 2007 | 1 | 4 |
| 2008 | 1 | 2 |
| 2009 | 1 | 3 |
| 2010 | 1 | 1 |
| 2011 | 0 | 1 |
| 2012 | 1 | 2 |
| 2013 | 2 | 2 |
| 2014 | 2 | 4 |
| 2015 | 1 | 9 |
| 2016 | 2 | 3 |
| 2017 | 2 | 7 |
| 2018 | 7 | 4 |
| 2019 | 5 | 3 |
| 2020 | 3 | 5 |
| 2021 | 2 | 9 |
| 2022 | 5 | 8 |
| 2023 | 7 | 4 |
| 2024 | 5 | 8 |
| 2025 | 6 | 7 |
| 2026 | 3 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Coiled tubing weld-on connector4 Aug 2026US 12,698,681 B2National Oilwell Varco, L. P.
- Connecting assembly for a gas cooking appliance12 May 2026US 12,624,777 B2Copreci, S. Coop.
- Flexible connector for joining a coiled tubing and a bottom hole assembly10 Mar 2026US 12,571,266 B2Ram Welding, Inc.
- Connecting pipe assembly and control valve assembly with connecting pipe assembly11 Nov 2025US 12,467,562 B2Zhejiang Dunan Artificial Environment Co., Ltd.
- System for connecting rigid pipes and for connecting flexible pipes, and fittings for such a system11 Nov 2025US 12,467,563 B2Viega Technology GmbH & Co. KG
- System for Connecting Rigid Pipes and for Connecting Flexible Pipes, and Fittings for Such a System29 Jan 2026US 2026/0029073 A1Viega Technology GmbH & Co. KG
- Flexible pipe connector and manufacturing method therefor4 Dec 2025US 2025/0369543 A1Dong-A Flexible Metal Tubes Co., Ltd.
- Hybrid hose assemblies and assembly methods30 Oct 2025US 2025/0334213 A1
- Downhole tool with crack compliant seal and mechanical strengthening feature at a joint thereof4 Sep 2025US 2025/0277548 A1Halliburton Energy Services.Inc.
- Combined pipe fitting and air conditioning system pipeline24 Jul 2025US 2025/0237331 A1Hanshan Ruike Metal Co., Ltd.
Most cited
By later US patents
- Spin welded fluid coupling35US 6,832,785 B1ITT Manufacturing Enterprises, Inc. · 2004
- Welding spacer18US 4,505,420 APhillips Petroleum Company · 1985
- Electromagnetic induction welding of plastic pipe distribution systems18US 9,528,638 B2Huliot A.C.S. Ltd · 2016
- Solderless metallurgical joint17US 5,549,335 APeerless of America, Inc. · 1996
- Weld joint13US 4,134,606 AParker-Hannifin Corporation · 1979