F16L 11/045
With four or more layers without reinforcement
Official title: {with four or more layers without reinforcement}
F16L11/045 (With four or more layers without reinforcement) appears on 106 US grants and 113 published applications in this corpus.
Search patents in F16L- Granted patents
- 106
- Published applications
- 113
- Assignees
- 81
- Inventors
- 267
- Latest grant
- 23 Jun 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1978 | 1 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 1 | 0 |
| 1983 | 1 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 1 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 1 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 2 | 0 |
| 1995 | 1 | 0 |
| 1996 | 1 | 0 |
| 1997 | 4 | 0 |
| 1998 | 3 | 0 |
| 1999 | 9 | 0 |
| 2000 | 4 | 0 |
| 2001 | 9 | 0 |
| 2002 | 5 | 8 |
| 2003 | 9 | 4 |
| 2004 | 5 | 6 |
| 2005 | 5 | 5 |
| 2006 | 2 | 10 |
| 2007 | 1 | 4 |
| 2008 | 1 | 2 |
| 2009 | 1 | 8 |
| 2010 | 2 | 2 |
| 2011 | 0 | 0 |
| 2012 | 1 | 0 |
| 2013 | 1 | 4 |
| 2014 | 2 | 4 |
| 2015 | 1 | 6 |
| 2016 | 1 | 3 |
| 2017 | 3 | 4 |
| 2018 | 3 | 6 |
| 2019 | 1 | 6 |
| 2020 | 4 | 5 |
| 2021 | 7 | 5 |
| 2022 | 2 | 5 |
| 2023 | 4 | 3 |
| 2024 | 4 | 4 |
| 2025 | 1 | 5 |
| 2026 | 2 | 4 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Hose, hose assembly, and manufacture method23 Jun 2026US 12,663,103 B2Luohe Letone Hydraulics Technology Co., Ltd.
- Multilayer tubular structure having better resistance to extraction in biofuel and use thereof9 Jun 2026US 12,650,183 B2Arkema France
- Hydrogen tube23 Sep 2025US 12,420,521 B2TI Automotive (Fuldabrück) GmbH
- Automotive fuel and vapor transport tubing with monolayer or multilayer structure incorporating graphene26 Nov 2024US 12,152,705 B2Martinrea International US Inc.
- Flexible high-pressure fluid conveying pipe1 Oct 2024US 12,103,266 B2Kuraray Co., Ltd.
- Multilayer tubular structure having better resistance to extraction in biofuel and use thereof3 Sep 2026US 2026/0258888 A1Arkema France
- Gamma stable reinforced pump tubing30 Jul 2026US 2026/0218696 A1W. L. Gore & Associates, Inc.
- Multi-layered tubular leak detection23 Jul 2026US 2026/0210791 A1NVIDIA Corporation
- Tube for guiding of cleaning fluids2 Apr 2026US 2026/0092658 A1
- Multilayer composite tube with static discharge-resistant layers18 Dec 2025US 2025/0383130 A1Titeflex Corporation
Most cited
By later US patents
- Fluoropolymer tubes and methods of making same182US 6,016,848 AW. L. Gore & Associates, Inc. · 2000
- Multi-layer fuel and vapor tube77US 5,383,087 AITT Corporation · 1995
- Multi-layer drip irrigation conduit52US 5,332,160 AAgrifim Irrigation International N.V. · 1994
- Multi-layer tubing having electrostatic dissipation for handling hydrocarbon fluids50US 5,524,673 AITT Corporation · 1996
- Thermoplastic multilayer composites35US 6,555,243 B2Ems-Chemie AG · 2003