G01N 33/2805
Investigating the resistance to heat or oxidation
Official title: {investigating the resistance to heat or oxidation}
G01N33/2805 (Investigating the resistance to heat or oxidation) appears on 84 US grants and 42 published applications in this corpus.
Search patents in G01N- Granted patents
- 84
- Published applications
- 42
- Assignees
- 62
- Inventors
- 203
- Latest grant
- 17 Feb 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 2 | 0 |
| 1978 | 0 | 0 |
| 1979 | 2 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 1 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 1 | 0 |
| 1987 | 1 | 0 |
| 1988 | 6 | 0 |
| 1989 | 4 | 0 |
| 1990 | 0 | 0 |
| 1991 | 1 | 0 |
| 1992 | 3 | 0 |
| 1993 | 1 | 0 |
| 1994 | 6 | 0 |
| 1995 | 2 | 0 |
| 1996 | 2 | 0 |
| 1997 | 3 | 0 |
| 1998 | 3 | 0 |
| 1999 | 1 | 0 |
| 2000 | 3 | 0 |
| 2001 | 0 | 0 |
| 2002 | 1 | 2 |
| 2003 | 4 | 0 |
| 2004 | 1 | 0 |
| 2005 | 0 | 2 |
| 2006 | 2 | 2 |
| 2007 | 1 | 0 |
| 2008 | 0 | 1 |
| 2009 | 0 | 0 |
| 2010 | 1 | 0 |
| 2011 | 1 | 2 |
| 2012 | 4 | 8 |
| 2013 | 3 | 0 |
| 2014 | 1 | 1 |
| 2015 | 3 | 1 |
| 2016 | 0 | 0 |
| 2017 | 0 | 5 |
| 2018 | 0 | 4 |
| 2019 | 5 | 4 |
| 2020 | 3 | 2 |
| 2021 | 3 | 1 |
| 2022 | 1 | 3 |
| 2023 | 2 | 2 |
| 2024 | 3 | 1 |
| 2025 | 0 | 0 |
| 2026 | 2 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Sensor for transformer condition assessment17 Feb 2026US 12,553,878 B2Aurtra Pty Ltd
- Electric vehicle fluid test system10 Feb 2026US 12,546,758 B2Southwest Research Institute
- Apparatus to simulate biocide performance in crude pipeline conditions1 Oct 2024US 12,104,128 B2Saudi Arabian Oil Company
- Oil quality sensor14 May 2024US 11,982,665 B2Dodge Industrial, Inc.
- Apparatus for measuring fuel thermal stability, deposit formation rate, and in-situ reactivity via optical methods20 Feb 2024US 11,906,500 B1The Government of the United States of America as Represented by the Secretary of the Air Force
- Systems and methods for varnish detection9 Apr 2026US 2026/0098849 A1Donaldson Company, Inc.
- Electric Vehicle Fluid Test System5 Dec 2024US 2024/0402146 A1Southwest Research Institute
- Apparatus to simulate biocide performance in crude pipeline conditions30 Nov 2023US 2023/0383202 A1Saudi Arabian Oil Company
- Oxidative stability test methods for chemically recycled plastic feedstocks14 Sep 2023US 2023/0288395 A1Ecolab USA Inc.
- Process and system for measuring the oxidation stability and/or the thermal stability of a fuel16 Jun 2022US 2022/0187272 A1Ifp Energies Nouvelles
Most cited
By later US patents
- Complete oil analysis technique66US 5,071,527 AUniversity of Dayton · 1991
- Method of and apparatus for determining deposition-point temperature48US 5,827,952 ASandia National Laboratories · 1998
- Acoustic-wave sensor apparatus for analyzing a petroleum-based composition and sensing solidification of constituents therein46US 5,661,233 ASandia Corporation · 1997
- Process for producing a lubricant base oil having improved oxidative stability44US 6,025,305 AExxon Research & Engineering Co. · 2000
- Method and apparatus for monitoring oil degradation38US 4,007,629 A1977