F16L 53/34
Using electric, magnetic or electromagnetic fields
Official title: using electric, magnetic or electromagnetic fields, e.g. induction, dielectric or microwave heating
F16L53/34 (Using electric, magnetic or electromagnetic fields) appears on 87 US grants and 101 published applications in this corpus.
Search patents in F16L- Granted patents
- 87
- Published applications
- 101
- Assignees
- 76
- Inventors
- 252
- Latest grant
- 7 Apr 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 4 | 0 |
| 1977 | 1 | 0 |
| 1978 | 0 | 0 |
| 1979 | 1 | 0 |
| 1980 | 0 | 0 |
| 1981 | 2 | 0 |
| 1982 | 2 | 0 |
| 1983 | 0 | 0 |
| 1984 | 1 | 0 |
| 1985 | 0 | 0 |
| 1986 | 2 | 0 |
| 1987 | 1 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 3 | 0 |
| 1994 | 0 | 0 |
| 1995 | 1 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 1 | 0 |
| 2000 | 0 | 0 |
| 2001 | 3 | 0 |
| 2002 | 0 | 0 |
| 2003 | 1 | 0 |
| 2004 | 0 | 0 |
| 2005 | 0 | 0 |
| 2006 | 0 | 0 |
| 2007 | 0 | 0 |
| 2008 | 0 | 1 |
| 2009 | 0 | 1 |
| 2010 | 0 | 4 |
| 2011 | 0 | 0 |
| 2012 | 0 | 1 |
| 2013 | 2 | 11 |
| 2014 | 3 | 8 |
| 2015 | 5 | 9 |
| 2016 | 4 | 10 |
| 2017 | 6 | 8 |
| 2018 | 8 | 9 |
| 2019 | 7 | 7 |
| 2020 | 10 | 7 |
| 2021 | 5 | 4 |
| 2022 | 1 | 4 |
| 2023 | 1 | 6 |
| 2024 | 5 | 5 |
| 2025 | 6 | 4 |
| 2026 | 1 | 2 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Underwater heated pipe for the transport of fluids and method for assembling such a pipe7 Apr 2026US 12,595,870 B2Saipem S.P.A.
- Air duct and air system and methods and uses of said air duct and air system16 Dec 2025US 12,498,077 B2Dec Technologies B.V.
- Wye connector for a plurality of devices connected to a fluid source9 Dec 2025US 12,492,773 B2Sleep Solutions Inc.
- Distributed low energy dynamic thermal management system for solid matter prevention and control in oil and gas transportation pipeline18 Nov 2025US 12,474,022 B2Dalian University of Technology
- Band-pass filter20 May 2025US 12,303,844 B2Synergetic Oil Tools, Inc.
- Connector for a temperature-regulated article12 Mar 2026US 2026/0071709 A1Sleep Solutions Inc.
- Coating material structure8 Jan 2026US 2026/0009488 A1Zhi Hui Co., Ltd.
- Band-pass filter3 Jul 2025US 2025/0213998 A1Synergetic Oil Tools, Inc.
- Methods and apparatus for insulating gas lines26 Jun 2025US 2025/0207715 A1ASM IP Holding B. V.
- Underwater heated pipe for the transport of fluids and method for assembling such a pipe15 May 2025US 2025/0155065 A1Saipem S.P.A.
Most cited
By later US patents
- Arrangement in a pipe bundle581US 5,979,506 AAker Engineering AS · 1999
- Process of electric pipeline heating utilizing heating elements inserted in pipelines288US 5,182,792 APetroleo Brasileiro S.A. - Petrobras · 1993
- Reduced resistance skin effect heat generating system195US 4,645,906 AThermon Manufacturing Company · 1987
- Pipe heating by AC in steel47US 3,975,617 A1976
- Induction heating for short segments of pipeline systems47US 6,278,095 B1Shell Oil Company · 2001