F16L 59/143
Pre-insulated pipes
Official title: {Pre-insulated pipes}
F16L59/143 (Pre-insulated pipes) appears on 286 US grants and 354 published applications in this corpus.
Search patents in F16L- Granted patents
- 286
- Published applications
- 354
- Assignees
- 219
- Inventors
- 723
- Latest grant
- 25 Aug 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 4 | 0 |
| 1977 | 1 | 0 |
| 1978 | 2 | 0 |
| 1979 | 1 | 0 |
| 1980 | 0 | 0 |
| 1981 | 4 | 0 |
| 1982 | 1 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 2 | 0 |
| 1986 | 2 | 0 |
| 1987 | 7 | 0 |
| 1988 | 1 | 0 |
| 1989 | 1 | 0 |
| 1990 | 3 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 2 | 0 |
| 1994 | 1 | 0 |
| 1995 | 1 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 4 | 0 |
| 1999 | 9 | 0 |
| 2000 | 12 | 0 |
| 2001 | 5 | 0 |
| 2002 | 3 | 6 |
| 2003 | 7 | 9 |
| 2004 | 3 | 9 |
| 2005 | 5 | 13 |
| 2006 | 11 | 15 |
| 2007 | 2 | 11 |
| 2008 | 1 | 17 |
| 2009 | 7 | 7 |
| 2010 | 5 | 12 |
| 2011 | 9 | 9 |
| 2012 | 2 | 9 |
| 2013 | 5 | 14 |
| 2014 | 3 | 9 |
| 2015 | 7 | 13 |
| 2016 | 8 | 16 |
| 2017 | 13 | 8 |
| 2018 | 7 | 22 |
| 2019 | 18 | 17 |
| 2020 | 17 | 21 |
| 2021 | 13 | 21 |
| 2022 | 19 | 19 |
| 2023 | 14 | 22 |
| 2024 | 11 | 25 |
| 2025 | 22 | 22 |
| 2026 | 11 | 8 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Device for closing off a segment of pipe-in-pipe pipeline comprising a water detector25 Aug 2026US 12,716,540 B2Itp SA
- Insulating support bracket for jacketed pipe system18 Aug 2026US 12,710,125 B2ASC Engineered Solutions, LLC
- Determining thermal conditions in a pipeline28 Jul 2026US 12,692,991 B2Saudi Arabian Oil Company
- Vacuum-insulated double-wall piping for transporting cryogenic fluid9 Jun 2026US 12,650,197 B2Tb Global Technologies Ltd.
- System to convey a fluid14 Apr 2026US 12,601,440 B2Saipem S.P.A.
- Thermal insulation structure for pipe, pipe heating system, thermal insulation sheet, and method of installing thermal insulation structure23 Jul 2026US 2026/0210476 A1Nichias Corporation
- Hvacr pipe11 Jun 2026US 2026/0160361 A1Ptubes, Inc.
- Curved pipe segment for transporting a cryogenic fluid, associated arrangement and aircraft11 Jun 2026US 2026/0160372 A1Airbus Operations GmbH
- Multi-layer heat insulated pipeline for conveying gas23 Apr 2026US 2026/0110385 A1
- Tubular assembly comprising low density, low thermal conductivity low thermal effusivity polyarylene sulfide foam19 Mar 2026US 2026/0078860 A1Parker-Hannifin Corporation
Most cited
By later US patents
- Dual wall safety tube580US 4,653,541 AParker-Hannifin Corporation · 1987
- Oriented polymeric products67US 6,053,214 AUponor N.V. · 2000
- Method of thermally insulating coaxial pipes with a particulate insulating material61US 7,938,148 B2Saipem S.P.A. · 2011
- Phase change insulation for subsea flowlines53US 6,000,438 AMcDermott Technology, Inc. · 1999
- Subsea pipeline insulation53US 6,058,979 ACuming Corporation · 2000