F16L 21/03
Placed in the socket before connection
Official title: placed in the socket before connection ({F16L21/022,} F16L21/025 take precedence)
F16L21/03 (Placed in the socket before connection) appears on 373 US grants and 390 published applications in this corpus.
Search patents in F16L- Granted patents
- 373
- Published applications
- 390
- Assignees
- 252
- Inventors
- 620
- Latest grant
- 29 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 4 | 0 |
| 1977 | 1 | 0 |
| 1978 | 5 | 0 |
| 1979 | 2 | 0 |
| 1980 | 4 | 0 |
| 1981 | 3 | 0 |
| 1982 | 1 | 0 |
| 1983 | 3 | 0 |
| 1984 | 2 | 0 |
| 1985 | 2 | 0 |
| 1986 | 1 | 0 |
| 1987 | 2 | 0 |
| 1988 | 2 | 0 |
| 1989 | 3 | 0 |
| 1990 | 1 | 0 |
| 1991 | 4 | 0 |
| 1992 | 3 | 0 |
| 1993 | 2 | 0 |
| 1994 | 2 | 0 |
| 1995 | 2 | 0 |
| 1996 | 2 | 0 |
| 1997 | 3 | 0 |
| 1998 | 2 | 0 |
| 1999 | 4 | 0 |
| 2000 | 10 | 0 |
| 2001 | 3 | 5 |
| 2002 | 8 | 5 |
| 2003 | 5 | 1 |
| 2004 | 0 | 15 |
| 2005 | 5 | 9 |
| 2006 | 4 | 6 |
| 2007 | 5 | 4 |
| 2008 | 5 | 16 |
| 2009 | 3 | 10 |
| 2010 | 7 | 12 |
| 2011 | 5 | 12 |
| 2012 | 4 | 8 |
| 2013 | 7 | 11 |
| 2014 | 6 | 15 |
| 2015 | 11 | 28 |
| 2016 | 8 | 23 |
| 2017 | 18 | 24 |
| 2018 | 27 | 29 |
| 2019 | 18 | 27 |
| 2020 | 25 | 28 |
| 2021 | 26 | 34 |
| 2022 | 23 | 14 |
| 2023 | 29 | 17 |
| 2024 | 21 | 14 |
| 2025 | 24 | 17 |
| 2026 | 6 | 6 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Snap-fit sealing gasket with rigid reinforcing ring and use of the same in forming a joing in a fluid conveying plastic pipeline29 Sep 2026US 12,747,811 B1S & B Technical Products, Inc.
- Constant velocity joint21 Jul 2026US 12,687,202 B2Neapco Intellectual Property Holdings, LLC
- Spigot assembly for a rechargeable battery thermal management system and a vehicle having same16 Jun 2026US 12,655,922 B2GM Global Technology Operations LLC
- Sealing means, improved slip joint apparatus and/or methods of use thereof21 Apr 2026US 12,607,264 B2Teconnex Ltd
- Pipe connector and an assembly of a pipe connector with at least two pipes17 Mar 2026US 12,578,041 B2Naber Holding GmbH & Co. KG
- Plug connector16 Jul 2026US 2026/0201986 A1Carl Freudenberg KG
- Concealed connector structure, and application and use method thereof25 Jun 2026US 2026/0177172 A1Apexstone Amoy Marble & Granite
- Solvent Free Jointing Method for Pressure Applications11 Jun 2026US 2026/0160363 A1Ipex Technologies Inc.
- Wheel line transmission pipe system26 Mar 2026US 2026/0085771 A1
- Quick connector12 Mar 2026US 2026/0071705 A1A. Raymond Et Cie
Most cited
By later US patents
- Gasket for field adaptable push-on restrained joint and joint thus produced77US 5,067,751 AAmerican Cast Iron Pipe Company · 1991
- Reinforced sealing rings for pipe joints74US 4,368,894 ARieber & Son · 1983
- Production of socket ends in thermoplastic pipes63US 4,299,412 ARieber & Son A/S · 1981
- Microfluidic interconnects63US 6,273,478 B1The Regents of the University of California · 2001
- Slip on groove coupling with multiple sealing gasket63US 8,282,136 B2Mueller International, LLC · 2012