F16L 33/20
Undivided rings, sleeves, or like members contracted on the hose or expanded
Official title: Undivided rings, sleeves, or like members contracted on the hose or expanded inside the hose by means of tools; Arrangements using such members
F16L33/20 (Undivided rings, sleeves, or like members contracted on the hose or expanded) appears on 662 US grants and 572 published applications in this corpus.
Search patents in F16L- Granted patents
- 662
- Published applications
- 572
- Assignees
- 355
- Inventors
- 1,200
- Latest grant
- 15 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 4 | 0 |
| 1977 | 6 | 0 |
| 1978 | 5 | 0 |
| 1979 | 5 | 0 |
| 1980 | 3 | 0 |
| 1981 | 6 | 0 |
| 1982 | 4 | 0 |
| 1983 | 10 | 0 |
| 1984 | 3 | 0 |
| 1985 | 6 | 0 |
| 1986 | 7 | 0 |
| 1987 | 12 | 0 |
| 1988 | 6 | 0 |
| 1989 | 8 | 0 |
| 1990 | 10 | 0 |
| 1991 | 9 | 0 |
| 1992 | 12 | 0 |
| 1993 | 17 | 0 |
| 1994 | 23 | 0 |
| 1995 | 12 | 0 |
| 1996 | 10 | 0 |
| 1997 | 9 | 0 |
| 1998 | 10 | 0 |
| 1999 | 11 | 0 |
| 2000 | 10 | 0 |
| 2001 | 13 | 4 |
| 2002 | 18 | 11 |
| 2003 | 17 | 12 |
| 2004 | 5 | 25 |
| 2005 | 9 | 22 |
| 2006 | 19 | 28 |
| 2007 | 9 | 16 |
| 2008 | 14 | 25 |
| 2009 | 12 | 20 |
| 2010 | 10 | 27 |
| 2011 | 15 | 24 |
| 2012 | 11 | 29 |
| 2013 | 11 | 17 |
| 2014 | 22 | 25 |
| 2015 | 16 | 21 |
| 2016 | 23 | 23 |
| 2017 | 16 | 21 |
| 2018 | 22 | 47 |
| 2019 | 23 | 21 |
| 2020 | 30 | 25 |
| 2021 | 27 | 26 |
| 2022 | 17 | 35 |
| 2023 | 23 | 17 |
| 2024 | 28 | 18 |
| 2025 | 19 | 14 |
| 2026 | 15 | 19 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Fitting for connecting to a tubular element, tubing connection and a method for connecting a fitting to a tubular element15 Sep 2026US 12,736,155 B2Conex IPR Limited
- Fitting assembly for collapse-resistant hose15 Sep 2026US 12,736,159 B2Parker-Hannifin Corporation
- Fitting with a sealing sleeve, and associated assemblies and methods15 Sep 2026US 12,736,160 B1Parker-Hannifin Corporation
- Press fitting25 Aug 2026US 12,716,533 B2Reliance Worldwide Corporation
- Flexible pipe and a method of manufacturing a flexible pipe11 Aug 2026US 12,704,209 B2Polyflow LLC
- Connecting system and pressing tool for a connecting system8 Oct 2026US 2026/0309256 A1Henn GmbH & Co KG.
- Arrangement with a connecting piece fastened to a hose23 Jul 2026US 2026/0210467 A1Hc-Kunststoffwerk RüLzheim GmbH
- Connect structure for semiconductor processing equipment2 Jul 2026US 2026/0188626 A1Taiwan Semiconductor Manufacturing Company.Ltd
- Over-molded grommet for hose applications18 Jun 2026US 2026/0168600 A1Cooper-Standard Automotive Inc.
- Press-style fittings and systems, kits, and methods incorporating the same28 May 2026US 2026/0146689 A1Titeflex Corporation
Most cited
By later US patents
- Plug-type connection arrangement for a hose and a pipe1,211US 7,562,910 B2Norma Germany GmbH · 2009
- Quick connect tubing connector129US 6,086,118 ABundy Corporation · 2000
- Pipe joining connection process114US 4,152,821 A1979
- Method of making a plastic pipe adaptor111US 6,131,265 AM&FC Holding, LLC · 2000
- Automotive hose coupling108US 6,419,278 B1Dana Corporation · 2002