F16L 9/16
Wound from sheets or strips, with or without reinforcement
Official title: wound from sheets or strips, with or without reinforcement
F16L9/16 (Wound from sheets or strips, with or without reinforcement) appears on 201 US grants and 144 published applications in this corpus.
Search patents in F16L- Granted patents
- 201
- Published applications
- 144
- Assignees
- 124
- Inventors
- 372
- Latest grant
- 16 Jun 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 7 | 0 |
| 1977 | 4 | 0 |
| 1978 | 7 | 0 |
| 1979 | 4 | 0 |
| 1980 | 2 | 0 |
| 1981 | 3 | 0 |
| 1982 | 1 | 0 |
| 1983 | 3 | 0 |
| 1984 | 5 | 0 |
| 1985 | 2 | 0 |
| 1986 | 2 | 0 |
| 1987 | 4 | 0 |
| 1988 | 2 | 0 |
| 1989 | 3 | 0 |
| 1990 | 2 | 0 |
| 1991 | 6 | 0 |
| 1992 | 5 | 0 |
| 1993 | 2 | 0 |
| 1994 | 2 | 0 |
| 1995 | 2 | 0 |
| 1996 | 8 | 0 |
| 1997 | 5 | 0 |
| 1998 | 11 | 0 |
| 1999 | 6 | 0 |
| 2000 | 7 | 0 |
| 2001 | 1 | 0 |
| 2002 | 0 | 2 |
| 2003 | 1 | 0 |
| 2004 | 0 | 3 |
| 2005 | 0 | 4 |
| 2006 | 1 | 4 |
| 2007 | 3 | 3 |
| 2008 | 2 | 8 |
| 2009 | 0 | 5 |
| 2010 | 0 | 5 |
| 2011 | 3 | 5 |
| 2012 | 0 | 3 |
| 2013 | 2 | 6 |
| 2014 | 4 | 12 |
| 2015 | 9 | 6 |
| 2016 | 3 | 4 |
| 2017 | 8 | 10 |
| 2018 | 10 | 13 |
| 2019 | 10 | 10 |
| 2020 | 12 | 15 |
| 2021 | 7 | 10 |
| 2022 | 6 | 6 |
| 2023 | 4 | 3 |
| 2024 | 4 | 2 |
| 2025 | 5 | 3 |
| 2026 | 1 | 2 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Additive manufacturing of multilayered structures16 Jun 2026US 12,654,417 B2FMC Technologies, Inc.
- Helically wound tubular structures22 Jul 2025US 12,366,310 B2Techreo LLC
- Air conduit spirally wound and provided with a plurality of holes, related manufacturing machine and method and related strip3 Jun 2025US 12,318,829 B2
- Tubular structure reinforcing13 May 2025US 12,297,951 B2Keystone Tower Systems, Inc.
- Pipe forming apparatus4 Feb 2025US 12,214,559 B2Nexgen Pipes Pte. Ltd.
- Reinforced and damped tubular structures20 Aug 2026US 2026/0243373 A1Techreo LLC
- Method of manufacture of a reinforced pipe15 Jan 2026US 2026/0014611 A1Odfjell Oceanwind AS
- Additive manufacturing of multilayered structures23 Oct 2025US 2025/0326197 A1FMC Technologies, Inc.
- Multilayer structure for transporting or storing gas or for exploiting offshore oil deposits under the sea20 Mar 2025US 2025/0091323 A1Arkema France
- Tubular structures16 Jan 2025US 2025/0020246 A1Techreo LLC
Most cited
By later US patents
- Plastic pipe comprising an outer corrugated pipe and a smooth inner wall108US 4,754,781 AWavin B. V. · 1988
- Methods and systems for subterranean multilateral well drilling and completion106US 5,564,503 AHalliburton Company · 1996
- Flexible conduit100US 5,730,188 AWellstream, Inc. · 1998
- Methods and systems for subterranean multilateral well drilling and completion99US 5,735,350 AHalliburton Energy Services.Inc. · 1998
- Laminated porous polytetrafluoroethylene tube and its process of manufacture86US 4,478,898 AJunkosha Inc. · 1984