F16L 37/56
Couplings of the quick-acting type: for double-walled or multi-channel pipes or pipe
Official title: for double-walled or multi-channel pipes {or pipe assemblies}
F16L37/56 (Couplings of the quick-acting type: for double-walled or multi-channel pipes or pipe) appears on 403 US grants and 340 published applications in this corpus.
Search patents in F16L- Granted patents
- 403
- Published applications
- 340
- Assignees
- 277
- Inventors
- 782
- Latest grant
- 1 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 5 | 0 |
| 1977 | 5 | 0 |
| 1978 | 9 | 0 |
| 1979 | 2 | 0 |
| 1980 | 4 | 0 |
| 1981 | 5 | 0 |
| 1982 | 3 | 0 |
| 1983 | 5 | 0 |
| 1984 | 5 | 0 |
| 1985 | 4 | 0 |
| 1986 | 6 | 0 |
| 1987 | 4 | 0 |
| 1988 | 7 | 0 |
| 1989 | 9 | 0 |
| 1990 | 9 | 0 |
| 1991 | 5 | 0 |
| 1992 | 3 | 0 |
| 1993 | 4 | 0 |
| 1994 | 4 | 0 |
| 1995 | 5 | 0 |
| 1996 | 7 | 0 |
| 1997 | 3 | 0 |
| 1998 | 2 | 0 |
| 1999 | 10 | 0 |
| 2000 | 1 | 0 |
| 2001 | 6 | 0 |
| 2002 | 4 | 5 |
| 2003 | 7 | 7 |
| 2004 | 3 | 7 |
| 2005 | 3 | 10 |
| 2006 | 6 | 6 |
| 2007 | 5 | 4 |
| 2008 | 2 | 8 |
| 2009 | 5 | 8 |
| 2010 | 10 | 12 |
| 2011 | 2 | 15 |
| 2012 | 7 | 12 |
| 2013 | 11 | 9 |
| 2014 | 9 | 10 |
| 2015 | 12 | 8 |
| 2016 | 6 | 20 |
| 2017 | 12 | 18 |
| 2018 | 18 | 13 |
| 2019 | 15 | 27 |
| 2020 | 9 | 15 |
| 2021 | 23 | 20 |
| 2022 | 16 | 17 |
| 2023 | 22 | 25 |
| 2024 | 23 | 30 |
| 2025 | 24 | 18 |
| 2026 | 17 | 16 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Multi-connector1 Sep 2026US 12,723,692 B2Illinois Tool Works Inc.
- Multi coupling for coupling lines with an alignment aid1 Sep 2026US 12,725,954 B2qoncept engineering GmbH
- Unified pneumatic and electrical connector system and method11 Aug 2026US 12,703,116 B2Roam Robotics Inc.
- Combined air fitting28 Jul 2026US 12,691,839 B2Rivian IP Holdings, LLC
- Blind-mate connector and liquid cooling apparatus14 Jul 2026US 12,680,644 B2Huawei Technologies Co., Ltd.
- Quick-release hose coupling for at least one hose8 Oct 2026US 2026/0309261 A1GEA Farm Technologies GmbH
- Mechanism for single hand operation of dual quick disconnects on an external desktop radiator1 Oct 2026US 2026/0298386 A1Lenovo (United States) Inc.
- Connection device24 Sep 2026US 2026/0287103 A1SMC Corporation
- Fastening arrangement for fastening tubes to a sanitary fitting13 Aug 2026US 2026/0234916 A1Neoperl GmbH
- Pipe coupling13 Aug 2026US 2026/0235244 A1Nitta Corporation
Most cited
By later US patents
- Snap-on fluidtight pipe connecting device134US 5,219,185 AITW Fastex Italia S.p.A. · 1993
- Double coupling for removably joining twin pipes122US 4,753,268 AS.A. des Establissements Staubli · 1988
- Multiple tube connector115US 4,630,847 AColder Products Company · 1986
- Miniature tube fitting having a barbed stem portion surrounded by a protective shroud and method for making same112US 4,703,957 AColder Products Company · 1987
- Quick-connect fluid coupling107US 4,900,065 ADLH Industries, Inc. · 1990