G01N 31/12
Investigating or analysing non-biological materials by the use of the chemical methods
Official title: using combustion (G01N25/20 takes precedence)
G01N31/12 (Investigating or analysing non-biological materials by the use of the chemical methods) appears on 328 US grants and 241 published applications in this corpus.
Search patents in G01N- Granted patents
- 328
- Published applications
- 241
- Assignees
- 225
- Inventors
- 700
- Latest grant
- 16 Jun 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 10 | 0 |
| 1977 | 6 | 0 |
| 1978 | 13 | 0 |
| 1979 | 3 | 0 |
| 1980 | 9 | 0 |
| 1981 | 8 | 0 |
| 1982 | 6 | 0 |
| 1983 | 3 | 0 |
| 1984 | 5 | 0 |
| 1985 | 7 | 0 |
| 1986 | 10 | 0 |
| 1987 | 6 | 0 |
| 1988 | 4 | 0 |
| 1989 | 9 | 0 |
| 1990 | 7 | 0 |
| 1991 | 10 | 0 |
| 1992 | 4 | 0 |
| 1993 | 10 | 0 |
| 1994 | 10 | 0 |
| 1995 | 10 | 0 |
| 1996 | 4 | 0 |
| 1997 | 2 | 0 |
| 1998 | 2 | 0 |
| 1999 | 3 | 0 |
| 2000 | 4 | 0 |
| 2001 | 3 | 2 |
| 2002 | 6 | 2 |
| 2003 | 4 | 9 |
| 2004 | 3 | 7 |
| 2005 | 2 | 7 |
| 2006 | 5 | 5 |
| 2007 | 4 | 4 |
| 2008 | 2 | 11 |
| 2009 | 1 | 6 |
| 2010 | 2 | 4 |
| 2011 | 4 | 11 |
| 2012 | 8 | 8 |
| 2013 | 6 | 7 |
| 2014 | 6 | 9 |
| 2015 | 5 | 10 |
| 2016 | 4 | 8 |
| 2017 | 7 | 8 |
| 2018 | 9 | 9 |
| 2019 | 9 | 18 |
| 2020 | 11 | 13 |
| 2021 | 10 | 17 |
| 2022 | 15 | 12 |
| 2023 | 15 | 21 |
| 2024 | 10 | 12 |
| 2025 | 7 | 14 |
| 2026 | 5 | 7 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Method for the quantification and characterization of carbon in soils16 Jun 2026US 12,656,327 B2Ifp Energies Nouvelles
- Method for the quantification and characterization of carbon in soils26 May 2026US 12,638,435 B2Ifp Energies Nouvelles
- Element analysis device, mounting jig, and mounting method19 May 2026US 12,631,533 B2Horiba, Ltd.
- Atmospheric aerosol inorganic and organic nitrogen quantification method and system5 May 2026US 12,618,815 B2The Hong Kong University of Science and Technology
- Method of analysing foodstuff samples using laser-induced breakdown spectroscopy27 Jan 2026US 12,535,424 B2Foss Analytical A/S
- Method for quantifying the pyrogenic carbon present in a sample of an organo-mineral or mineral matrix comprising charcoal and/or biochar10 Sep 2026US 2026/0266785 A1
- Optical fiber gas sensor27 Aug 2026US 2026/0251578 A1Cmiws Co., Ltd.
- Analytical apparatus for determining the concentration of an analyte and corresponding method11 Jun 2026US 2026/0160741 A1Endress+Hauser Conducta GmbH+Co. KG
- Backdraft determination apparatus and determining a likelihood of a backdraft in an enclosure11 Jun 2026US 2026/0162510 A1
- Combustion gas absorption liquid generation device and combustion ion chromatograph19 Feb 2026US 2026/0049967 A1Shimadzu Corporation
Most cited
By later US patents
- Automatic volatile matter content analyzer98US 4,459,103 AHazen Research, Inc. · 1984
- Controlled atmosphere oven98US 4,568,426 AAlcor, Inc. · 1986
- Controlled atmosphere oven95US 4,680,167 AAlcor, Inc. · 1987
- Programmed thermal degradation-mass spectrometry analysis method facilitating identification of a biological specimen85US 4,075,475 AChemetron Corporation · 1978
- Selective, high speed detection of vapors with analysis of multiple GC-separated portions45US 5,268,302 AThermedics Inc. · 1993