F16L 23/12
Flanged joints: specially adapted for particular pipes
Official title: specially adapted for particular pipes
F16L23/12 (Flanged joints: specially adapted for particular pipes) appears on 274 US grants and 197 published applications in this corpus.
Search patents in F16L- Granted patents
- 274
- Published applications
- 197
- Assignees
- 172
- Inventors
- 410
- Latest grant
- 29 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 2 | 0 |
| 1977 | 3 | 0 |
| 1978 | 3 | 0 |
| 1979 | 1 | 0 |
| 1980 | 3 | 0 |
| 1981 | 10 | 0 |
| 1982 | 3 | 0 |
| 1983 | 2 | 0 |
| 1984 | 3 | 0 |
| 1985 | 9 | 0 |
| 1986 | 6 | 0 |
| 1987 | 4 | 0 |
| 1988 | 4 | 0 |
| 1989 | 3 | 0 |
| 1990 | 1 | 0 |
| 1991 | 6 | 0 |
| 1992 | 12 | 0 |
| 1993 | 4 | 0 |
| 1994 | 10 | 0 |
| 1995 | 6 | 0 |
| 1996 | 2 | 0 |
| 1997 | 7 | 0 |
| 1998 | 1 | 0 |
| 1999 | 5 | 0 |
| 2000 | 5 | 0 |
| 2001 | 5 | 0 |
| 2002 | 6 | 4 |
| 2003 | 3 | 3 |
| 2004 | 3 | 4 |
| 2005 | 2 | 4 |
| 2006 | 4 | 4 |
| 2007 | 3 | 0 |
| 2008 | 1 | 5 |
| 2009 | 1 | 7 |
| 2010 | 3 | 2 |
| 2011 | 0 | 4 |
| 2012 | 5 | 9 |
| 2013 | 4 | 7 |
| 2014 | 3 | 8 |
| 2015 | 8 | 13 |
| 2016 | 5 | 18 |
| 2017 | 5 | 9 |
| 2018 | 15 | 15 |
| 2019 | 7 | 17 |
| 2020 | 22 | 16 |
| 2021 | 12 | 5 |
| 2022 | 8 | 9 |
| 2023 | 10 | 6 |
| 2024 | 5 | 15 |
| 2025 | 11 | 10 |
| 2026 | 8 | 3 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- System and method for forming a full engagement male lock in a ductline29 Sep 2026US 12,747,810 B2Mestek Machinery, Inc.
- Flange fitting for tubular structures9 Jun 2026US 12,649,205 B2Keystone Tower Systems, Inc.
- Connector system for use in ultra-high vacuum systems2 Jun 2026US 12,644,557 B2Atlas Bimetals Labs, Inc.
- Coupling device, and method for flushing same2 Jun 2026US 12,644,559 B2L Air Liquide, Societe Anonyme Pour L'Etude et L'Exploitation des Procedes Georges Claude
- Coupling for insulated piping31 Mar 2026US 12,590,666 B2Airbus Operations GmbH
- Method of rotating a pipeline section23 Jul 2026US 2026/0210463 A1Victaulic Company
- Reusable clamp12 Feb 2026US 2026/0043509 A1Nordson Corporation
- Coupling flange with shims in industrial machine and related method1 Jan 2026US 2026/0002614 A1
- Tubular member flange attachment and methods of attaching a flange to a tubular member18 Dec 2025US 2025/0381591 A1Bobrick Washroom Equipment, Inc.
- Pipe for a cryogenic fluid, pipe assembly, and aerospace system with pipe27 Nov 2025US 2025/0361956 A1
Most cited
By later US patents
- Frac manifold missile and fitting148US 10,982,523 B1KHOLLE Magnolia 2015, LLC · 2021
- Flowline junction fittings for frac systems127US 10,662,749 B1KHOLLE Magnolia 2015, LLC · 2020
- Duct connecting system67US 4,466,641 AIowa Precision Industries, Inc. · 1984
- Flange type duct joint assembly65US 4,218,079 ADuctmate Industries, Inc. · 1980
- Sealed lay-in conduit duct64US 4,077,434 AFederal Cartridge Company · 1978