F17D 3/03
Arrangements for supervising or controlling working operations: for controlling, signalling, or supervising
Official title: for controlling, signalling, or supervising the conveyance of several different products following one another in the same conduit, e.g. for switching from one receiving tank to another
F17D3/03 (Arrangements for supervising or controlling working operations: for controlling, signalling, or supervising) appears on 91 US grants and 91 published applications in this corpus.
Search patents in F17D- Granted patents
- 91
- Published applications
- 91
- Assignees
- 64
- Inventors
- 151
- Latest grant
- 23 Dec 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 1 | 0 |
| 1978 | 1 | 0 |
| 1979 | 2 | 0 |
| 1980 | 2 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 3 | 0 |
| 1986 | 1 | 0 |
| 1987 | 0 | 0 |
| 1988 | 1 | 0 |
| 1989 | 0 | 0 |
| 1990 | 2 | 0 |
| 1991 | 3 | 0 |
| 1992 | 0 | 0 |
| 1993 | 2 | 0 |
| 1994 | 3 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 1 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 1 | 1 |
| 2003 | 1 | 3 |
| 2004 | 0 | 0 |
| 2005 | 1 | 3 |
| 2006 | 1 | 2 |
| 2007 | 2 | 0 |
| 2008 | 1 | 3 |
| 2009 | 3 | 1 |
| 2010 | 0 | 0 |
| 2011 | 0 | 2 |
| 2012 | 2 | 5 |
| 2013 | 5 | 1 |
| 2014 | 1 | 5 |
| 2015 | 0 | 4 |
| 2016 | 3 | 5 |
| 2017 | 4 | 2 |
| 2018 | 4 | 7 |
| 2019 | 4 | 2 |
| 2020 | 2 | 2 |
| 2021 | 2 | 15 |
| 2022 | 13 | 11 |
| 2023 | 8 | 2 |
| 2024 | 4 | 10 |
| 2025 | 6 | 3 |
| 2026 | 0 | 2 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Systems and methods for analyzing multiphase production fluids utilizing a vertically oriented fluidic separation chamber23 Dec 2025US 12,504,129 B2Saudi Arabian Oil Company
- Apparatus for tracking a pig18 Nov 2025US 12,474,009 B2Cokebusters Ltd.
- Method of preparing a system for a maintenance operation16 Sep 2025US 12,416,385 B2Valvetight Holding BV
- Renewable diesel interface recombination1 Jul 2025US 12,345,380 B2Marathon Petroleum Company LP
- Systems and methods for volume fraction analysis of production fluids utilizing a vertically oriented fluidic separation chamber25 Mar 2025US 12,259,093 B2Saudi Arabian Oil Company
- Heat generation apparatus having a heater core with a tubular configuration and a layered structure forming a transmission line19 Mar 2026US 2026/0081042 A1
- Multi-gas processing and transport system5 Mar 2026US 2026/0062635 A1Ecole Polytechnique Federale De Lausanne (Epfl)
- Renewable diesel interface recombination9 Oct 2025US 2025/0314358 A1Marathon Petroleum Company LP
- Methods and systems for pressure gradient prediction in oil-water flowlines employing artificial intelligence methods26 Jun 2025US 2025/0209305 A1Saudi Arabian Oil Company
- Methods and systems for inline mixing of hydrocarbon liquids27 Mar 2025US 2025/0103069 A1Marathon Petroleum Company LP
Most cited
By later US patents
- Process for recovery of hydrocarbons and rejection of sand350US 5,316,664 ACanadian Occidental Petroleum Ltd. · 1994
- Process for recovery of hydrocarbons and rejection of sand346US 5,340,467 ACanadian Occidental Petroleum Ltd. · 1994
- Preparation of low-viscosity improved stable crude oil transport emulsions296US 4,983,319 ACanadian Occidental Petroleum Ltd. · 1991
- Friction reducing composition and method60US 7,205,262 B2Weatherford/Lamb, Inc. · 2007
- Process for preparing a water continuous emulsion from heavy crude fraction54US 5,283,001 ACanadian Occidental Petroleum Ltd. · 1994