G01N 33/1833
Oil in water
Official title: {Oil in water}
G01N33/1833 (Oil in water) appears on 200 US grants and 144 published applications in this corpus.
Search patents in G01N- Granted patents
- 200
- Published applications
- 144
- Assignees
- 133
- Inventors
- 492
- Latest grant
- 29 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 9 | 0 |
| 1977 | 6 | 0 |
| 1978 | 5 | 0 |
| 1979 | 3 | 0 |
| 1980 | 7 | 0 |
| 1981 | 1 | 0 |
| 1982 | 4 | 0 |
| 1983 | 4 | 0 |
| 1984 | 4 | 0 |
| 1985 | 0 | 0 |
| 1986 | 6 | 0 |
| 1987 | 7 | 0 |
| 1988 | 2 | 0 |
| 1989 | 2 | 0 |
| 1990 | 4 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 1 | 0 |
| 1994 | 2 | 0 |
| 1995 | 3 | 0 |
| 1996 | 3 | 0 |
| 1997 | 2 | 0 |
| 1998 | 3 | 0 |
| 1999 | 4 | 0 |
| 2000 | 3 | 0 |
| 2001 | 3 | 1 |
| 2002 | 3 | 1 |
| 2003 | 4 | 1 |
| 2004 | 1 | 3 |
| 2005 | 1 | 1 |
| 2006 | 2 | 0 |
| 2007 | 0 | 2 |
| 2008 | 1 | 2 |
| 2009 | 0 | 4 |
| 2010 | 2 | 1 |
| 2011 | 2 | 3 |
| 2012 | 1 | 3 |
| 2013 | 6 | 4 |
| 2014 | 2 | 9 |
| 2015 | 3 | 2 |
| 2016 | 7 | 17 |
| 2017 | 7 | 12 |
| 2018 | 7 | 10 |
| 2019 | 8 | 10 |
| 2020 | 15 | 12 |
| 2021 | 5 | 7 |
| 2022 | 5 | 11 |
| 2023 | 11 | 11 |
| 2024 | 10 | 8 |
| 2025 | 4 | 7 |
| 2026 | 5 | 2 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Integrated autonomous oil-slick sampler and storage preservation device29 Sep 2026US 12,748,019 B2ExxonMobil Technology and Engineering Company
- Source determination of produced water from oilfields with artificial intelligence techniques7 Jul 2026US 12,674,793 B2Saudi Arabian Oil Company
- Method and system for water cut sensing in an oil-water flow16 Jun 2026US 12,655,759 B2King Abdullah University of Science and Technology
- Self-cleaning optical probe5 May 2026US 12,618,769 B2Inov8 Systems Limited
- Method and system for water cut sensing in an oil-water flow5 May 2026US 12,618,770 B2Saudi Arabian Oil Company
- Fluid analyzer antenna mounting23 Apr 2026US 2026/0110559 A1Phase Dynamics, Inc.
- Tdr-based detection of contamination2 Apr 2026US 2026/0092802 A1Endress + Hauser GmbH + Co. KG
- Method for real time physics driven machine learning based predictive and preventive advisory for oil in produced water estimation4 Dec 2025US 2025/0369946 A1Saudi Arabian Oil Company
- Method for development of smart sensor using real time hybrid ai with physics driven machine learning as advisory for oil in water4 Dec 2025US 2025/0369948 A1Saudi Arabian Oil Company
- Methods for evaluating the impact of chemical products on produced water20 Nov 2025US 2025/0354971 A1Petroleo Brasileiro S.A. - Petrobras
Most cited
By later US patents
- Fluorescence quenching with immunological pairs in immunoassays1,144US 3,996,345 ASyva Company · 1976
- Capacitive chemical sensor for detecting certain analytes, including hydrocarbons in a liquid medium70US 4,728,882 AThe Johns Hopkins University · 1988
- Fluorescence method of quantifying hydrocarbons, including crude oil, dispersed in water66US 5,381,002 ATexaco Inc. · 1995
- Oil-in-water detector buoy arrangement43US 6,456,197 B1FMC Technologies, Inc. · 2002
- Method and apparatus for underwater detection of hydrocarbons42US 4,394,573 AConoco Inc. · 1983