G01N 33/1846
Total carbon analysis
Official title: {Total carbon analysis}
G01N33/1846 (Total carbon analysis) appears on 180 US grants and 154 published applications in this corpus.
Search patents in G01N- Granted patents
- 180
- Published applications
- 154
- Assignees
- 103
- Inventors
- 360
- Latest grant
- 5 May 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 5 | 0 |
| 1977 | 1 | 0 |
| 1978 | 2 | 0 |
| 1979 | 1 | 0 |
| 1980 | 1 | 0 |
| 1981 | 5 | 0 |
| 1982 | 1 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 2 | 0 |
| 1987 | 1 | 0 |
| 1988 | 3 | 0 |
| 1989 | 1 | 0 |
| 1990 | 3 | 0 |
| 1991 | 1 | 0 |
| 1992 | 4 | 0 |
| 1993 | 3 | 0 |
| 1994 | 5 | 0 |
| 1995 | 6 | 0 |
| 1996 | 4 | 0 |
| 1997 | 2 | 0 |
| 1998 | 5 | 0 |
| 1999 | 4 | 0 |
| 2000 | 4 | 0 |
| 2001 | 4 | 0 |
| 2002 | 5 | 2 |
| 2003 | 2 | 4 |
| 2004 | 7 | 2 |
| 2005 | 1 | 3 |
| 2006 | 0 | 3 |
| 2007 | 1 | 3 |
| 2008 | 1 | 7 |
| 2009 | 1 | 3 |
| 2010 | 3 | 8 |
| 2011 | 4 | 9 |
| 2012 | 10 | 13 |
| 2013 | 6 | 4 |
| 2014 | 4 | 2 |
| 2015 | 5 | 5 |
| 2016 | 2 | 6 |
| 2017 | 6 | 7 |
| 2018 | 4 | 7 |
| 2019 | 6 | 8 |
| 2020 | 4 | 7 |
| 2021 | 7 | 7 |
| 2022 | 4 | 12 |
| 2023 | 9 | 13 |
| 2024 | 7 | 5 |
| 2025 | 11 | 6 |
| 2026 | 2 | 8 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Method of quantifying microplastic mass5 May 2026US 12,618,823 B2The Education University of Hong Kong
- Carbon measurements in aqueous samples using oxidation at elevated temperatures and pressures created by resistive heating17 Mar 2026US 12,578,267 B2Bl Technologies, Inc.
- Inspection apparatus and inspection method30 Dec 2025US 12,510,526 B2Shimadzu Corporation
- Combined transfer module with integrated conductivity measurement23 Dec 2025US 12,504,394 B2Bl Technologies, Inc.
- Inspection apparatus9 Dec 2025US 12,493,021 B2Shimadzu Corporation
- System and Method for Carbon Monitoring and Management in Water Systems9 Jul 2026US 2026/0194508 A1Vycarb Inc.
- Pressure Sensing Dissolved Inorganic Carbon14 May 2026US 2026/0133174 A1Woods Hole Oceanographic Institution
- Devices, systems, and methods for toc analysis with an active flow9 Apr 2026US 2026/0098842 A1Mettler-Toledo Thornton, Inc.
- Systems and methods providing artificial intelligence analysis of toc sensor data9 Apr 2026US 2026/0098848 A1Mettler-Toledo Thornton, Inc.
- Process water analyzer12 Feb 2026US 2026/0043782 A1Hach Lange GmbH
Most cited
By later US patents
- Microfluidic system for measurement of total organic carbon124US 6,444,474 B1Eltron Research, Inc. · 2002
- Instrument for measurement of the organic carbon content of water69US 4,868,127 AAnatel Corporation · 1989
- Method and apparatus for the determination of dissolved carbon in water56US 5,132,094 ASievers Instruments, Inc. · 1992
- Method and apparatus for measuring the amount of carbon and other organics in an aqueous solution51US 4,277,438 AAstro Resources Corporation · 1981
- Method and apparatus for the measurement of dissolved carbon43US 5,902,751 ASievers Instruments, Inc. · 1999