F16L 15/08
Screw-threaded joints: with supplementary elements
Official title: with supplementary elements (F16L15/04 takes precedence)
F16L15/08 (Screw-threaded joints: with supplementary elements) appears on 394 US grants and 447 published applications in this corpus.
Search patents in F16L- Granted patents
- 394
- Published applications
- 447
- Assignees
- 236
- Inventors
- 783
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1977 | 2 | 0 |
| 1978 | 2 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 2 | 0 |
| 1985 | 1 | 0 |
| 1986 | 1 | 0 |
| 1987 | 1 | 0 |
| 1988 | 2 | 0 |
| 1989 | 1 | 0 |
| 1990 | 4 | 0 |
| 1991 | 2 | 0 |
| 1992 | 4 | 0 |
| 1993 | 2 | 0 |
| 1994 | 0 | 0 |
| 1995 | 2 | 0 |
| 1996 | 3 | 0 |
| 1997 | 0 | 0 |
| 1998 | 3 | 0 |
| 1999 | 2 | 0 |
| 2000 | 4 | 0 |
| 2001 | 2 | 0 |
| 2002 | 5 | 7 |
| 2003 | 3 | 3 |
| 2004 | 4 | 8 |
| 2005 | 5 | 9 |
| 2006 | 7 | 7 |
| 2007 | 3 | 12 |
| 2008 | 7 | 15 |
| 2009 | 4 | 9 |
| 2010 | 6 | 12 |
| 2011 | 9 | 14 |
| 2012 | 10 | 10 |
| 2013 | 9 | 16 |
| 2014 | 12 | 29 |
| 2015 | 18 | 34 |
| 2016 | 19 | 44 |
| 2017 | 28 | 34 |
| 2018 | 34 | 47 |
| 2019 | 33 | 24 |
| 2020 | 26 | 18 |
| 2021 | 19 | 16 |
| 2022 | 28 | 20 |
| 2023 | 18 | 16 |
| 2024 | 18 | 20 |
| 2025 | 19 | 11 |
| 2026 | 10 | 12 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Sleeve for securing a valve assembly6 Oct 2026US 12,753,857 B1Snf S.A.S.
- Threaded connection for exploration and production of a hydrocarbon well4 Aug 2026US 12,698,683 B2Tenaris Connections Limited
- External gap assembly28 Jul 2026US 12,692,754 B2Quantum Energy Technologies
- Floating connector for liquid cooling device14 Apr 2026US 12,601,432 B2Hanwit Precision Industries Ltd.
- Fire hose couplings and adapters31 Mar 2026US 12,590,599 B2
- Hose rotator20 Aug 2026US 2026/0243376 A1Gammon Technical Products, Inc.
- Spring force limiting liquid chromatography fitting for connecting and disconnecting capillaries13 Aug 2026US 2026/0235235 A1Agilent Technologies, Inc.
- Identification and/or tracking insert for drilling consumables and systems and apparatuses comprising same30 Jul 2026US 2026/0218573 A1Boart Longyear Manufacturing And Distribution Inc.
- Fitting and Thread Seal for Establishing a Fluid-Tight Screw Connection for a Pipe with an External Thread23 Jul 2026US 2026/0210461 A1Viega Technology GmbH & Co. KG
- Bop pipe connection system16 Jul 2026US 2026/0201985 A1Kim Co., Ltd.
Most cited
By later US patents
- Wired pipe joint with current-loop inductive couplers159US 6,641,434 B2Schlumberger Technology Corporation · 2003
- Coupling assembly151US 5,474,334 AHalliburton Company · 1995
- Method and apparatus for a combined mechanical and metallurgical connection139US 6,419,147 B12002
- Expandable tubing connector for expandable tubing138US 6,322,109 B1Weatherford/Lamb, Inc. · 2001
- Alignable, threaded, sealed connection127US 4,907,828 AWestern Atlas International, Inc. · 1990