B29L 2023/004
Bent tubes
Official title: {Bent tubes (for use as pipe couplings B29L2031/24)}
B29L2023/004 (Bent tubes) appears on 123 US grants and 137 published applications in this corpus.
Search patents in B29L- Granted patents
- 123
- Published applications
- 137
- Assignees
- 107
- Inventors
- 344
- Latest grant
- 1 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 1 | 0 |
| 1978 | 1 | 0 |
| 1979 | 1 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 2 | 0 |
| 1984 | 1 | 0 |
| 1985 | 1 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 1 | 0 |
| 1989 | 2 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 2 | 0 |
| 1993 | 1 | 0 |
| 1994 | 2 | 0 |
| 1995 | 4 | 0 |
| 1996 | 2 | 0 |
| 1997 | 2 | 0 |
| 1998 | 2 | 0 |
| 1999 | 4 | 0 |
| 2000 | 3 | 0 |
| 2001 | 1 | 1 |
| 2002 | 1 | 3 |
| 2003 | 2 | 4 |
| 2004 | 1 | 5 |
| 2005 | 2 | 3 |
| 2006 | 1 | 4 |
| 2007 | 2 | 5 |
| 2008 | 1 | 4 |
| 2009 | 2 | 3 |
| 2010 | 2 | 4 |
| 2011 | 2 | 4 |
| 2012 | 2 | 8 |
| 2013 | 7 | 9 |
| 2014 | 5 | 12 |
| 2015 | 9 | 8 |
| 2016 | 9 | 4 |
| 2017 | 4 | 6 |
| 2018 | 4 | 6 |
| 2019 | 10 | 8 |
| 2020 | 3 | 5 |
| 2021 | 3 | 6 |
| 2022 | 5 | 7 |
| 2023 | 1 | 6 |
| 2024 | 2 | 5 |
| 2025 | 6 | 5 |
| 2026 | 3 | 2 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Anti-corrosion automatic wrapping device and method for bend pipe with polyethylene composite tape1 Sep 2026US 12,722,340 B2Hebei Hengtong Pipe Fittings Group Co.,Ltd
- Method and device for manufacturing bent resin pipe5 May 2026US 12,617,137 B2The Yokohama Rubber Co., Ltd.
- Method of manufacturing an arrangement for the transport of media and arrangement20 Jan 2026US 12,528,241 B2Ti Automotive Technology Center GmbH
- Forming duct structure with overbraided woven fiber sleeve21 Oct 2025US 12,447,697 B2Rohr, Inc.
- Fiber reinforced elongate profiled object24 Jun 2025US 12,337,554 B2Sabic Global Technologies B.V.
- Arrangement for the transport of media and method for producing an arrangement9 Jul 2026US 2026/0194154 A1Ti Automotive Technology Center GmbH
- Line system with numerous outlets22 Jan 2026US 2026/0024840 A1
- Resin pipe manufacturing method and device9 Oct 2025US 2025/0312955 A1The Yokohama Rubber Co., Ltd.
- Fiber reinforced elongate profiled object11 Sep 2025US 2025/0282109 A1Sabic Global Techologies B.V.
- Equipment for Preparing Polyethylene Coating with Three-Layer Structure Wound on Steel Elbow4 Sep 2025US 2025/0276482 A1Wuxi Zhongyou Ruide Anticorrosion Technology Co.Ltd
Most cited
By later US patents
- Composite waste and water transport elements and methods of manufacture for use on aircraft123US 9,458,955 B2MAG Aerospace Industries, LLC · 2016
- Method of lining inner wall surfaces of hollow articles122US 4,377,894 AKawasaki Jukogyo Kabushiki Kaisha · 1983
- Method for preparing molded articles of ultra-high molecular weight polyethylene45US 4,876,049 ANippon Petrochemicals Company, Limited · 1989
- Hollow foamed blow-molded article45US 8,435,615 B2Jsp Corporation · 2013
- Tubular casing with glued seam and its manufacture and use for curved or ring-shaped sausages33US 4,410,011 AHoechst Aktiengesellschaft · 1983