F16L 55/1656
Materials for flexible liners
Official title: {materials for flexible liners}
F16L55/1656 (Materials for flexible liners) appears on 345 US grants and 336 published applications in this corpus.
Search patents in F16L- Granted patents
- 345
- Published applications
- 336
- Assignees
- 217
- Inventors
- 490
- Latest grant
- 15 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1977 | 1 | 0 |
| 1978 | 0 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 1 | 0 |
| 1986 | 3 | 0 |
| 1987 | 4 | 0 |
| 1988 | 4 | 0 |
| 1989 | 4 | 0 |
| 1990 | 5 | 0 |
| 1991 | 5 | 0 |
| 1992 | 6 | 0 |
| 1993 | 7 | 0 |
| 1994 | 5 | 0 |
| 1995 | 8 | 0 |
| 1996 | 7 | 0 |
| 1997 | 8 | 0 |
| 1998 | 7 | 0 |
| 1999 | 14 | 0 |
| 2000 | 8 | 0 |
| 2001 | 7 | 2 |
| 2002 | 9 | 8 |
| 2003 | 13 | 11 |
| 2004 | 5 | 9 |
| 2005 | 7 | 9 |
| 2006 | 7 | 11 |
| 2007 | 5 | 10 |
| 2008 | 3 | 11 |
| 2009 | 1 | 9 |
| 2010 | 4 | 12 |
| 2011 | 13 | 14 |
| 2012 | 2 | 14 |
| 2013 | 11 | 13 |
| 2014 | 10 | 25 |
| 2015 | 8 | 18 |
| 2016 | 15 | 12 |
| 2017 | 16 | 20 |
| 2018 | 14 | 27 |
| 2019 | 19 | 28 |
| 2020 | 20 | 15 |
| 2021 | 16 | 8 |
| 2022 | 7 | 15 |
| 2023 | 16 | 10 |
| 2024 | 7 | 14 |
| 2025 | 8 | 6 |
| 2026 | 5 | 5 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Pipe lining tool and control module15 Sep 2026US 12,736,168 B2Peanta Inventions AB
- Device, system and method for curing a tube liner18 Aug 2026US 12,709,045 B2Per Aarsleff A/S
- Systems and methods for lining a pipe with a lighted liner or bladder30 Jun 2026US 12,669,210 B2Pipe Lining Enterprises, Inc.
- Methods for intelligent composite renewal system for standalone, storage, and renewed pipelines, including for reduced carbon emission and for conversion of in place pipelines for conveyance of hydrogen and other clean fuels16 Jun 2026US 12,654,418 B2Safegaurd, LLC
- Injection molded article, lining tube and lining valve2 Jun 2026US 12,644,554 B2Daikin Industries, Ltd.
- Systems and methods for lining a pipe with a lighted liner or bladder3 Sep 2026US 2026/0258896 A1Pipe Lining Enterprises, Inc.
- Pipeliner bladder assembly20 Aug 2026US 2026/0243380 A1American Pipelining Supplies LLC
- Apparatus, system and method for use with utility tunnels6 Aug 2026US 2026/0226830 A1British Telecommunications Public Ltd.Co.
- Seamless and jointless glass fibre reinforced composite lining folded into pipe shape with envelope folding technique for trenchless repair of pipelines25 Jun 2026US 2026/0175532 A1Telateks Tekstil üRüNleri Sanayi Ve Ticaret Anonim Sirketi
- Composite material for hose liners4 Jun 2026US 2026/0151956 A1Tenowo GmbH
Most cited
By later US patents
- Method for lining a casing225US 5,454,419 APolybore, Inc. · 1995
- Method of lining a pipe194US 4,009,063 AInsituform (Pipes & Structures) Ltd. · 1977
- Pipe liner and monitoring system142US 5,551,484 A1996
- Expandable pipe liner and method of installing same118US 5,501,248 ALmk Enterprises, Inc. · 1996
- Flexible tubular lining material84US 6,170,531 B2Karl Otto Braun KG · 2001