G01N 33/2835
Specific substances contained in the oils or fuels
Official title: {Specific substances contained in the oils or fuels}
G01N33/2835 (Specific substances contained in the oils or fuels) appears on 1,489 US grants and 1,448 published applications in this corpus.
Search patents in G01N- Granted patents
- 1,489
- Published applications
- 1,448
- Assignees
- 777
- Inventors
- 3,712
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 9 | 0 |
| 1977 | 12 | 0 |
| 1978 | 14 | 0 |
| 1979 | 7 | 0 |
| 1980 | 7 | 0 |
| 1981 | 8 | 0 |
| 1982 | 7 | 0 |
| 1983 | 4 | 0 |
| 1984 | 10 | 0 |
| 1985 | 6 | 0 |
| 1986 | 6 | 0 |
| 1987 | 11 | 0 |
| 1988 | 12 | 0 |
| 1989 | 12 | 0 |
| 1990 | 14 | 0 |
| 1991 | 10 | 0 |
| 1992 | 22 | 0 |
| 1993 | 27 | 0 |
| 1994 | 31 | 0 |
| 1995 | 25 | 0 |
| 1996 | 29 | 0 |
| 1997 | 33 | 0 |
| 1998 | 32 | 0 |
| 1999 | 16 | 0 |
| 2000 | 11 | 0 |
| 2001 | 20 | 3 |
| 2002 | 5 | 15 |
| 2003 | 13 | 16 |
| 2004 | 18 | 31 |
| 2005 | 17 | 20 |
| 2006 | 12 | 18 |
| 2007 | 19 | 29 |
| 2008 | 15 | 37 |
| 2009 | 16 | 50 |
| 2010 | 23 | 46 |
| 2011 | 26 | 47 |
| 2012 | 41 | 55 |
| 2013 | 39 | 58 |
| 2014 | 38 | 67 |
| 2015 | 42 | 77 |
| 2016 | 59 | 95 |
| 2017 | 66 | 88 |
| 2018 | 77 | 106 |
| 2019 | 85 | 75 |
| 2020 | 85 | 94 |
| 2021 | 74 | 85 |
| 2022 | 75 | 82 |
| 2023 | 83 | 83 |
| 2024 | 59 | 72 |
| 2025 | 61 | 57 |
| 2026 | 46 | 42 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- NMR characterization of modified drilling fluids6 Oct 2026US 12,754,154 B2Schlumberger Technology Corporation
- Printed coil sensors for monitoring fluid condition29 Sep 2026US 12,748,032 B2GasTOPS Ltd.
- Flow regime classification, water liquid ratio estimation, and salinity estimation systems and methods29 Sep 2026US 12,748,093 B2OneSubsea IP UK Limited
- Method of determining saturates, aromatics, resins, and asphaltene (SARA) fractions of reservoir fluid during downhole fluid analysis29 Sep 2026US 12,748,097 B2Schlumberger Technology Corporation
- Group-type analysis of hydrocarbon samples15 Sep 2026US 12,736,519 B2Saudi Arabian Oil Company
- Method for measuring downhole holdup, and method for determining downhole fluid interface and geometric distribution8 Oct 2026US 2026/0309606 A1China University of Petroleum (East China)
- Apparatuses, processes, and systems including fuel composition determination1 Oct 2026US 2026/0298170 A1Clummins Inc.
- Demulsifier screening and characterization using modified karl fischer reagent1 Oct 2026US 2026/0298897 A1Saudi Arabian Oil Company
- System and method of monitoring subterranean reservoirs24 Sep 2026US 2026/0286836 A1Resman AS
- Contrast component coating for sensor analysis24 Sep 2026US 2026/0286842 A1Halliburton Energy Services.Inc.
Most cited
By later US patents
- Intelligent fluid sensor for machinery diagnostics, prognostics, and control294US 7,581,434 B1Rockwell Automation Technologies, Inc. · 2009
- Sonic measurement of flow rate and water content of oil-water streams140US 4,080,837 AContinental Oil Company · 1978
- In-situ oil analyzer and methods of using same, particularly for continuous on-board analysis of diesel engine lubrication systems128US 5,604,441 ADetroit Diesel Corporation · 1997
- Marking of products to establish identity and source99US 5,429,952 ABiocode, Inc. · 1995
- Reservoir monitoring97US 6,645,769 B2Sinvent AS · 2003