B03D 2203/006
Oil well fluids, oil sands, bitumen
B03D2203/006 (Oil well fluids, oil sands, bitumen) appears on 59 US grants and 73 published applications in this corpus.
Search patents in B03D- Granted patents
- 59
- Published applications
- 73
- Assignees
- 55
- Inventors
- 122
- Latest grant
- 8 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1983 | 3 | 0 |
| 1984 | 3 | 0 |
| 1985 | 1 | 0 |
| 1986 | 1 | 0 |
| 1987 | 1 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 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 | 1 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 1 |
| 2003 | 1 | 0 |
| 2004 | 0 | 2 |
| 2005 | 0 | 0 |
| 2006 | 0 | 3 |
| 2007 | 0 | 5 |
| 2008 | 0 | 4 |
| 2009 | 0 | 0 |
| 2010 | 1 | 0 |
| 2011 | 3 | 6 |
| 2012 | 4 | 11 |
| 2013 | 0 | 3 |
| 2014 | 7 | 4 |
| 2015 | 6 | 4 |
| 2016 | 2 | 1 |
| 2017 | 3 | 0 |
| 2018 | 3 | 4 |
| 2019 | 2 | 3 |
| 2020 | 2 | 2 |
| 2021 | 1 | 4 |
| 2022 | 3 | 4 |
| 2023 | 3 | 5 |
| 2024 | 2 | 3 |
| 2025 | 3 | 3 |
| 2026 | 2 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Enhanced foam fractionation of oil phase from aqueous/oil mixed phase via increased viscoelasticity8 Sep 2026US 12,729,140 B2Ecolab USA Inc.
- Method and system for flotation separation in a magnetically controllable and steerable medium5 May 2026US 12,618,010 B2Cidra Corporate Services Inc.
- Fluid treatment system, separator and method using a magnetic field30 Sep 2025US 12,427,440 B2RJ Enterprises, Inc.
- Enhanced foam removal of total suspended solids and multiply charged cations from aqueous or aqueous/oil mixed phase via increased viscoelasticity30 Sep 2025US 12,428,318 B2Ecolab USA Inc.
- Nanogas shear processing15 Jul 2025US 12,357,926 B2Nanogas Technologies Inc.
- Enhanced foam removal of total suspended solids and multiply charged cations from aqueous or aqueous/oil mixed phase via increased viscoelasticity1 Jan 2026US 2026/0001783 A1Ecolab USA Inc.
- Fluid treatment system, separator and method using a magnetic field25 Dec 2025US 2025/0387732 A1RJ Enterprises, Inc.
- Nanogas shear processing6 Nov 2025US 2025/0339790 A1Nanogas Technologies Inc.
- Process for separating iron-bearing impurities from a host matrix12 Jun 2025US 2025/0187022 A1Bhmpc Investments Pty Ltd
- Methods for Pollucite Flotation, Plagioclase Flotation, and Quartz Purification31 Oct 2024US 2024/0359190 A1
Most cited
By later US patents
- Low temperature bitumen recovery process113US 4,946,597 AEsso Resources Canada Limited · 1990
- Ambient froth flotation process for the recovery of bitumen from tar sand87US 4,425,227 AGNC Energy Corporation · 1984
- Cycloseparator for removal of coarse solids from conditioned oil sand slurries45US 6,119,870 AAEC Oil Sands, L.P. · 2000
- Treatment of tailings pond sludge39US 4,399,039 ASuncor, Inc. · 1983
- Process for separating high viscosity bitumen from tar sands34US 4,410,417 AUniversity of Utah Research Foundation · 1983