F16L 19/04
Joints in which sealing surfaces are pressed together by means of a
Official title: using additional rigid rings, sealing directly on at least one pipe end, which is flared either before or during the making of the connection
F16L19/04 (Joints in which sealing surfaces are pressed together by means of a) appears on 165 US grants and 169 published applications in this corpus.
Search patents in F16L- Granted patents
- 165
- Published applications
- 169
- Assignees
- 103
- Inventors
- 298
- Latest grant
- 14 Jul 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 3 | 0 |
| 1977 | 2 | 0 |
| 1978 | 1 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 1 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 2 | 0 |
| 1986 | 1 | 0 |
| 1987 | 1 | 0 |
| 1988 | 1 | 0 |
| 1989 | 2 | 0 |
| 1990 | 0 | 0 |
| 1991 | 1 | 0 |
| 1992 | 2 | 0 |
| 1993 | 0 | 0 |
| 1994 | 2 | 0 |
| 1995 | 3 | 0 |
| 1996 | 0 | 0 |
| 1997 | 2 | 0 |
| 1998 | 3 | 0 |
| 1999 | 1 | 0 |
| 2000 | 5 | 0 |
| 2001 | 2 | 0 |
| 2002 | 4 | 2 |
| 2003 | 2 | 1 |
| 2004 | 1 | 4 |
| 2005 | 0 | 3 |
| 2006 | 2 | 4 |
| 2007 | 1 | 6 |
| 2008 | 3 | 4 |
| 2009 | 4 | 7 |
| 2010 | 4 | 10 |
| 2011 | 4 | 10 |
| 2012 | 2 | 5 |
| 2013 | 3 | 13 |
| 2014 | 4 | 4 |
| 2015 | 10 | 18 |
| 2016 | 8 | 10 |
| 2017 | 15 | 18 |
| 2018 | 7 | 7 |
| 2019 | 15 | 14 |
| 2020 | 8 | 3 |
| 2021 | 8 | 7 |
| 2022 | 6 | 5 |
| 2023 | 6 | 7 |
| 2024 | 7 | 2 |
| 2025 | 2 | 3 |
| 2026 | 4 | 2 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Guide ring14 Jul 2026US 12,680,638 B2Mueller International, LLC
- Pipe joint2 Jun 2026US 12,644,542 B2Nippon Pillar Packing Co., Ltd.
- Grip ring3 Mar 2026US 12,565,954 B2Mueller International, LLC
- Sealing pipe joint made of resin27 Jan 2026US 12,535,170 B2Feature-Tec (Shanghai) New Materials Co., Ltd.
- Temperature control device8 Jul 2025US 12,353,225 B2Australian Valve Group Pty Ltd
- 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
- Clamp jig19 Mar 2026US 2026/0077452 A1Pillar Corporation
- Sealing pipe joint made of resin16 Oct 2025US 2025/0320944 A1Feature-Tec (Shanghai) New Materials Co., Ltd.
- Pipe joint20 Mar 2025US 2025/0092968 A1Nippon Pillar Packing Co., Ltd.
- Grip ring13 Feb 2025US 2025/0052349 A1Mueller International, LLC
Most cited
By later US patents
- Tube coupling joint110US 3,970,336 AParker-Hannifin Corporation · 1976
- High pressure coupling with provision for preventing separation of parts and with anti-galling provision59US 5,388,866 ALourdes Industries, Inc. · 1995
- Conduit connection with sensing function51US 8,439,404 B2Swagelok Company · 2013
- Connecting device for plastic tubes and method for connecting a plastic tube46US 5,332,269 AHewing GmbH · 1994
- Coupling with tongue and groove46US 9,039,046 B2Mueller International, LLC · 2015