F17D 1/16
Facilitating the conveyance of liquids or effecting the conveyance of viscous products
Official title: Facilitating the conveyance of liquids or effecting the conveyance of viscous products by modification of their viscosity {(changing the flow or the viscosity by adding a chemical agent C09K3/00, C10M)}
F17D1/16 (Facilitating the conveyance of liquids or effecting the conveyance of viscous products) appears on 379 US grants and 361 published applications in this corpus.
Search patents in F17D- Granted patents
- 379
- Published applications
- 361
- Assignees
- 210
- Inventors
- 804
- Latest grant
- 26 May 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 4 | 0 |
| 1977 | 5 | 0 |
| 1978 | 10 | 0 |
| 1979 | 8 | 0 |
| 1980 | 8 | 0 |
| 1981 | 10 | 0 |
| 1982 | 6 | 0 |
| 1983 | 4 | 0 |
| 1984 | 1 | 0 |
| 1985 | 2 | 0 |
| 1986 | 5 | 0 |
| 1987 | 6 | 0 |
| 1988 | 9 | 0 |
| 1989 | 1 | 0 |
| 1990 | 4 | 0 |
| 1991 | 5 | 0 |
| 1992 | 1 | 0 |
| 1993 | 3 | 0 |
| 1994 | 4 | 0 |
| 1995 | 3 | 0 |
| 1996 | 6 | 0 |
| 1997 | 2 | 0 |
| 1998 | 2 | 0 |
| 1999 | 7 | 0 |
| 2000 | 5 | 0 |
| 2001 | 7 | 2 |
| 2002 | 6 | 11 |
| 2003 | 6 | 8 |
| 2004 | 7 | 9 |
| 2005 | 2 | 6 |
| 2006 | 6 | 11 |
| 2007 | 6 | 15 |
| 2008 | 3 | 18 |
| 2009 | 3 | 8 |
| 2010 | 9 | 16 |
| 2011 | 15 | 17 |
| 2012 | 7 | 15 |
| 2013 | 17 | 28 |
| 2014 | 7 | 14 |
| 2015 | 14 | 14 |
| 2016 | 16 | 25 |
| 2017 | 20 | 20 |
| 2018 | 13 | 25 |
| 2019 | 20 | 17 |
| 2020 | 12 | 17 |
| 2021 | 16 | 10 |
| 2022 | 12 | 22 |
| 2023 | 7 | 15 |
| 2024 | 10 | 8 |
| 2025 | 13 | 5 |
| 2026 | 4 | 5 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Process to treat heavy oil or bitumen or mixtures of dilutants and heavy oil or bitumen26 May 2026US 12,636,590 B2
- System for transporting and storing, in particular hydrogen and its mixtures19 May 2026US 12,631,269 B2
- System and method for electric heating trace system management27 Jan 2026US 12,535,190 B2Chemelex Europe GmbH
- Technologies for reducing the viscosity of crude oil6 Jan 2026US 12,516,257 B2Southwest Research Institute
- Method and pump for low-flow proportional metering30 Dec 2025US 12,510,063 B2Dosatron International
- Associative polymers and related compositions, methods and systems16 Jul 2026US 2026/0201124 A1California Institute of Technology
- Method of feeding a substance with properties of reducing hydraulic resistance into a flow of hydrocarbons and method of transporting hydrocarbons28 May 2026US 2026/0146210 A1Iris Tech, Inc.
- Drag reduction formulation and a method for preparation thereof28 May 2026US 2026/0146717 A1Hindustan Petroleum Corporation Limited
- Drag reducing polyalpha olefin slurry and methods of making and using the same26 Mar 2026US 2026/0085231 A1
- Methods and apparatus for treating bitumen mixtures5 Feb 2026US 2026/0035618 A1USD Group LLC
Most cited
By later US patents
- Viscosity reduction processing at elevated pressure128US 4,778,586 AResource Technology Associates · 1988
- Integrated bitumen production and gas conversion105US 6,531,516 B2ExxonMobil Research and Engineering Company · 2003
- Method for transporting viscous crude oils101US 4,420,008 AMobil Oil Corporation · 1983
- Cleaning compositions for oil and gas wells, lines, casings, formations and equipment and methods of use79US 6,173,776 B1Nor Industries, Inc. · 2001
- Composition for denaturing and breaking down friction-reducing polymer and for destroying other gas and oil well contaminants71US 7,897,063 B12011