F16L 37/565
Concentric pipes
Official title: {Concentric pipes}
F16L37/565 (Concentric pipes) appears on 57 US grants and 51 published applications in this corpus.
Search patents in F16L- Granted patents
- 57
- Published applications
- 51
- Assignees
- 49
- Inventors
- 125
- Latest grant
- 28 Jul 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 2 | 0 |
| 1977 | 0 | 0 |
| 1978 | 3 | 0 |
| 1979 | 0 | 0 |
| 1980 | 1 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 2 | 0 |
| 1989 | 1 | 0 |
| 1990 | 3 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 2 | 0 |
| 1996 | 1 | 0 |
| 1997 | 2 | 0 |
| 1998 | 0 | 0 |
| 1999 | 1 | 0 |
| 2000 | 0 | 0 |
| 2001 | 2 | 0 |
| 2002 | 0 | 0 |
| 2003 | 2 | 1 |
| 2004 | 0 | 4 |
| 2005 | 1 | 2 |
| 2006 | 1 | 0 |
| 2007 | 0 | 3 |
| 2008 | 0 | 0 |
| 2009 | 2 | 0 |
| 2010 | 1 | 0 |
| 2011 | 0 | 1 |
| 2012 | 0 | 3 |
| 2013 | 1 | 3 |
| 2014 | 1 | 1 |
| 2015 | 1 | 2 |
| 2016 | 1 | 2 |
| 2017 | 3 | 5 |
| 2018 | 5 | 5 |
| 2019 | 1 | 0 |
| 2020 | 1 | 1 |
| 2021 | 2 | 2 |
| 2022 | 1 | 4 |
| 2023 | 4 | 4 |
| 2024 | 4 | 6 |
| 2025 | 4 | 1 |
| 2026 | 1 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Combined air fitting28 Jul 2026US 12,691,839 B2Rivian IP Holdings, LLC
- Magnetic fluid connector2 Dec 2025US 12,486,933 B2Northstar Medical Technologies, LLC
- Magnetic fluid connector18 Nov 2025US 12,474,002 B2Northstar Medical Technologies, LLC
- Two-phase connector29 Jul 2025US 12,372,174 B2Zelup
- Nipple with relief valve3 Jun 2025US 12,320,458 B2Cejn AB
- Device and method for improving a vacuum insulated coupling6 Aug 2026US 2026/0227023 A1Mann Teknik AB
- Magnetic Fluid Connector15 May 2025US 2025/0155061 A1Northstar Medical Technologies, LLC
- Two-phase connector5 Dec 2024US 2024/0401727 A1Zelup
- Aircraft connector for fluid transfer3 Oct 2024US 2024/0328557 A1Airbus Operations GmbH
- Combined air fitting4 Jul 2024US 2024/0217465 A1Rivian IP Holdings, LLC
Most cited
By later US patents
- Cryosurgical instrument104US 5,992,158 ASpembly Medical Limited · 1999
- Breakaway coupling for a coaxial fuel supply hose76US 4,763,683 ACatlow, Inc. · 1988
- Tube couplings for co-axial tubing44US 5,401,064 A1995
- Breakaway hose coupling43US 5,570,719 ARichards Industries, Inc. · 1996
- Coaxial quick connector39US 6,550,815 B2ITT Manufacturing Enterprises, Inc. · 2003