F16L 58/109
The coating being an extruded layer
Official title: {the coating being an extruded layer}
F16L58/109 (The coating being an extruded layer) appears on 66 US grants and 54 published applications in this corpus.
Search patents in F16L- Granted patents
- 66
- Published applications
- 54
- Assignees
- 57
- Inventors
- 155
- Latest grant
- 24 Feb 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 2 | 0 |
| 1977 | 1 | 0 |
| 1978 | 1 | 0 |
| 1979 | 1 | 0 |
| 1980 | 1 | 0 |
| 1981 | 1 | 0 |
| 1982 | 1 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 1 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 1 | 0 |
| 1995 | 1 | 0 |
| 1996 | 5 | 0 |
| 1997 | 3 | 0 |
| 1998 | 1 | 0 |
| 1999 | 4 | 0 |
| 2000 | 1 | 0 |
| 2001 | 3 | 1 |
| 2002 | 2 | 2 |
| 2003 | 1 | 1 |
| 2004 | 2 | 0 |
| 2005 | 1 | 1 |
| 2006 | 0 | 0 |
| 2007 | 0 | 2 |
| 2008 | 0 | 0 |
| 2009 | 0 | 3 |
| 2010 | 0 | 5 |
| 2011 | 2 | 3 |
| 2012 | 0 | 4 |
| 2013 | 4 | 2 |
| 2014 | 1 | 1 |
| 2015 | 3 | 6 |
| 2016 | 1 | 2 |
| 2017 | 3 | 0 |
| 2018 | 3 | 3 |
| 2019 | 2 | 2 |
| 2020 | 2 | 2 |
| 2021 | 2 | 1 |
| 2022 | 3 | 4 |
| 2023 | 0 | 0 |
| 2024 | 3 | 2 |
| 2025 | 1 | 6 |
| 2026 | 2 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Coated pipe section and method for coating a pipe24 Feb 2026US 12,560,271 B22543500 Alberta Ltd B.D.A. Shaw Pipe Protection.
- Coated pipe section and method for coating a pipe24 Feb 2026US 12,560,272 B22543500 Alberta Ltd B.D.A. Shaw Pipe Protection.
- System for protecting coated pipes for on-land and subsea pipelines and the method for protecting pipes21 Jan 2025US 12,203,583 B2IPT—Instituto de Pesquisas Tecnologicas do Estado de Sao Paulo S/A
- Watertight electrical conduit27 Aug 2024US 12,072,053 B2Franklin Electric Co., Inc.
- System for protecting coated pipes for on-land and subsea pipelines and the method for protecting pipes6 Aug 2024US 12,055,262 B2Ipt—Instituto De Pesquisas Technologicas
- Metal pipes with anticorrosive polyolefin covering layer4 Jun 2026US 2026/0153184 A1Winn & Coales International Limited
- Insulated steel pipe and its method of manufacture18 Dec 2025US 2025/0382489 A12543500 Alberta Ltd., D.B.A. Shaw Pipe Protection
- Method of coating a pipe4 Dec 2025US 2025/0369554 A1
- Equipment for Preparing Polyethylene Coating with Three-Layer Structure Wound on Steel Elbow4 Sep 2025US 2025/0276482 A1Wuxi Zhongyou Ruide Anticorrosion Technology Co.Ltd
- Field joint method and apparatus28 Aug 2025US 2025/0271094 A12543500 Alberta Ltd., D.B.A. Shaw Pipe Protection
Most cited
By later US patents
- Extruded multiple plastic layer coating bonded to the outer surface of a metal tube having an optical non-reactive inner layer and process for making the same51US 5,520,223 AITT Industries, Inc. · 1996
- Multi-layered foam heat-shrinkable tube41US 5,405,665 ASumitomo Electric Industries, Ltd. · 1995
- Extruded multiple plastic layer coating bonded to the outer surface of a metal tube having an optional non-reactive inner layer and process for making the same34US 5,867,883 AITT Industries, Inc. · 1999
- Anti-corrosive material26US 6,224,957 B1Fulton Enterprises, Inc. · 2001
- Extruded multiple plastic layer coating bonded to a metal tube25US 5,590,691 AITT Corporation · 1997