F16L 9/02
Rigid pipes: of metal
Official title: of metal (F16L9/16 - F16L9/22 take precedence)
F16L9/02 (Rigid pipes: of metal) appears on 511 US grants and 613 published applications in this corpus.
Search patents in F16L- Granted patents
- 511
- Published applications
- 613
- Assignees
- 375
- Inventors
- 1,378
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 5 | 0 |
| 1977 | 4 | 0 |
| 1978 | 4 | 0 |
| 1979 | 1 | 0 |
| 1980 | 3 | 0 |
| 1981 | 4 | 0 |
| 1982 | 7 | 0 |
| 1983 | 2 | 0 |
| 1984 | 3 | 0 |
| 1985 | 2 | 0 |
| 1986 | 1 | 0 |
| 1987 | 3 | 0 |
| 1988 | 3 | 0 |
| 1989 | 2 | 0 |
| 1990 | 3 | 0 |
| 1991 | 4 | 0 |
| 1992 | 2 | 0 |
| 1993 | 4 | 0 |
| 1994 | 4 | 0 |
| 1995 | 4 | 0 |
| 1996 | 4 | 0 |
| 1997 | 4 | 0 |
| 1998 | 5 | 0 |
| 1999 | 4 | 0 |
| 2000 | 1 | 0 |
| 2001 | 7 | 1 |
| 2002 | 3 | 12 |
| 2003 | 7 | 3 |
| 2004 | 4 | 4 |
| 2005 | 5 | 20 |
| 2006 | 0 | 9 |
| 2007 | 4 | 3 |
| 2008 | 3 | 7 |
| 2009 | 6 | 8 |
| 2010 | 1 | 13 |
| 2011 | 4 | 12 |
| 2012 | 4 | 28 |
| 2013 | 6 | 38 |
| 2014 | 16 | 49 |
| 2015 | 34 | 50 |
| 2016 | 32 | 46 |
| 2017 | 52 | 37 |
| 2018 | 35 | 51 |
| 2019 | 39 | 39 |
| 2020 | 39 | 50 |
| 2021 | 31 | 29 |
| 2022 | 30 | 26 |
| 2023 | 21 | 14 |
| 2024 | 19 | 24 |
| 2025 | 14 | 25 |
| 2026 | 12 | 15 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Metallic fluid tube6 Oct 2026US 12,753,865 B2HDT Veritas Hessen GmbH
- Duplex stainless steel pipe22 Sep 2026US 12,742,233 B2Nippon Steel Corporation
- Threaded steel pipe or tube and production method therefor7 Jul 2026US 12,674,528 B2Jfe Steel Corporation
- 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
- Universal coupling2 Jun 2026US 12,644,545 B2Advanced Drainage Systems, Inc.
- High-strength stainless steel seamless pipe for oil wells24 Sep 2026US 2026/0286485 A1Jef Steel Corporation
- Pipe element, coupling and roller set27 Aug 2026US 2026/0251240 A1Victaulic Company
- Grooved Pipe Element and Coupling27 Aug 2026US 2026/0251244 A1Victaulic Company
- Grooved Pipe Element and Coupling27 Aug 2026US 2026/0251247 A1Victaulic Company
- Composite tube13 Aug 2026US 2026/0233491 A1Nippon Steel Corporation
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
- Apparatus for preventing casing damage due to formation compaction54US 5,174,340 AShell Oil Company · 1992
- Metal pipe having upset ends44US 5,743,301 AShaw Industries Ltd. · 1998
- Boiler tube coating and method for applying the same42US 4,075,376 AEutectic Corporation · 1978
- Method for making upset ends on metal pipe and resulting product42US 5,517,843 AShaw Industries Ltd. · 1996