F17D 3/12
Arrangements for supervising or controlling working operations: for injecting a composition into
Official title: for injecting a composition into the line
F17D3/12 (Arrangements for supervising or controlling working operations: for injecting a composition into) appears on 107 US grants and 136 published applications in this corpus.
Search patents in F17D- Granted patents
- 107
- Published applications
- 136
- Assignees
- 83
- Inventors
- 270
- Latest grant
- 10 Mar 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1979 | 1 | 0 |
| 1980 | 0 | 0 |
| 1981 | 4 | 0 |
| 1982 | 4 | 0 |
| 1983 | 1 | 0 |
| 1984 | 0 | 0 |
| 1985 | 1 | 0 |
| 1986 | 1 | 0 |
| 1987 | 2 | 0 |
| 1988 | 0 | 0 |
| 1989 | 2 | 0 |
| 1990 | 1 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 1 | 1 |
| 2003 | 0 | 0 |
| 2004 | 1 | 1 |
| 2005 | 1 | 3 |
| 2006 | 0 | 0 |
| 2007 | 0 | 0 |
| 2008 | 0 | 1 |
| 2009 | 0 | 3 |
| 2010 | 0 | 1 |
| 2011 | 1 | 2 |
| 2012 | 2 | 5 |
| 2013 | 2 | 8 |
| 2014 | 1 | 1 |
| 2015 | 5 | 8 |
| 2016 | 4 | 9 |
| 2017 | 9 | 14 |
| 2018 | 8 | 18 |
| 2019 | 10 | 7 |
| 2020 | 11 | 8 |
| 2021 | 6 | 5 |
| 2022 | 5 | 8 |
| 2023 | 5 | 9 |
| 2024 | 6 | 10 |
| 2025 | 8 | 8 |
| 2026 | 4 | 6 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Fluid injection system for pipelines10 Mar 2026US 12,571,504 B2Saudi Arabian Oil Company
- Multiphase flow instability control20 Jan 2026US 12,529,452 B2Schlumberger Technology Corporation
- System and method for transportation of captured carbon13 Jan 2026US 12,523,346 B2Caterpillar Inc.
- Technologies for reducing the viscosity of crude oil6 Jan 2026US 12,516,257 B2Southwest Research Institute
- Systems and methods for optimization of a petroleum distribution system2 Dec 2025US 12,486,952 B2Sensia LLC
- Optimizing pipeline capacity and emissions through drag-reducing agent and pump power management17 Sep 2026US 2026/0277257 A1Schlumberger Technology Corporation
- Methods and internet of things systems for anti-freezing management of smart gas pipeline network and media13 Aug 2026US 2026/0235264 A1Chengdu Qinchuan Iot Technology Co., Ltd.
- Injection quill device6 Aug 2026US 2026/0227037 A1Bohr Limited
- Systems and methods for recovery of hydrocarbon liquids in oil and gas pipelines26 Mar 2026US 2026/0085795 A1Zenrg Services, LLC
- Apparatuses or systems for reducing emissions from gas storage tanks and methods for making and using same5 Feb 2026US 2026/0036264 A1
Most cited
By later US patents
- Automatic controller for injection of additives into irrigation water67US 4,917,304 AAvanti Manufacturing Co. · 1990
- Flow control manifold41US 4,874,014 AFSI International, Inc. · 1989
- Device for taking a liquid from a conduit which contains the liquid or for injecting a liquid into the conduit37US 4,580,452 A1986
- Injection system for solid friction reducing polymers24US 4,263,926 AShell Oil Company · 1981
- Apparatus for producing calibration gases suitable for analytical instrumentation23US 4,257,439 ABi-M Instrument Company · 1981