G01N 33/0019
By preconcentration
Official title: {by preconcentration}
G01N33/0019 (By preconcentration) appears on 44 US grants and 57 published applications in this corpus.
Search patents in G01N- Granted patents
- 44
- Published applications
- 57
- Assignees
- 53
- Inventors
- 160
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1981 | 1 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 1 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 1 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 5 | 0 |
| 2002 | 1 | 1 |
| 2003 | 0 | 0 |
| 2004 | 0 | 0 |
| 2005 | 0 | 1 |
| 2006 | 0 | 0 |
| 2007 | 0 | 0 |
| 2008 | 0 | 1 |
| 2009 | 0 | 0 |
| 2010 | 1 | 0 |
| 2011 | 0 | 2 |
| 2012 | 0 | 2 |
| 2013 | 0 | 1 |
| 2014 | 0 | 1 |
| 2015 | 0 | 3 |
| 2016 | 3 | 5 |
| 2017 | 3 | 5 |
| 2018 | 1 | 4 |
| 2019 | 4 | 4 |
| 2020 | 2 | 4 |
| 2021 | 5 | 7 |
| 2022 | 2 | 4 |
| 2023 | 2 | 3 |
| 2024 | 6 | 4 |
| 2025 | 3 | 2 |
| 2026 | 3 | 3 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Artificial intelligence apparatus for detecting target gas in small sample domain and operating method thereof6 Oct 2026US 12,754,175 B2Electronics and Telecommunications Research Institute
- Low-concentration air pollutant selective detection device14 Apr 2026US 12,601,664 B2Korea Research Institute of Chemical Technology
- System and method for tracking of chemical exposures10 Mar 2026US 12,571,782 B2Volatile Analysis Corporation
- Devices and methods including a preconcentrator material for detection of analytes23 Sep 2025US 12,422,394 B2Massachusetts Institute of Technology
- Methods for measuring fugitive emission rates20 May 2025US 12,306,159 B2
- Gas sensor with integrated preconcentrator20 Aug 2026US 2026/0243743 A1UIF (University Industry Foundation), Yonsei University
- Gas Detection System with Enhanced Selectivity9 Jul 2026US 2026/0194503 A1Industry-Academic Cooperation Foundation, Yonsei University
- Photolithographic fabrication of silicon pillar arrays with perforated top electrode for trace vapor26 Mar 2026US 2026/0086074 A1The Government of the United States of America, as represented by the Secretary of the Navy
- Controlled environment system for standardizing initial conditions in co2 sorbent characterization4 Dec 2025US 2025/0369942 A1Arizona Board of Regents on behalf of Arizona State University
- Methods for measuring fugitive emission rates3 Apr 2025US 2025/0110093 A1
Most cited
By later US patents
- Inlet system for a gas analyzer39US 4,293,316 A1981
- Continuous monitoring of organic pollutants24US 5,435,169 ANew Jersey Institute of Technology · 1995
- Magazine for use with a gas sampling system23US 6,321,609 B1EAI Corporation · 2001
- Selective chemical detection by energy modulation of sensors19US 5,047,352 AArch Development Corporation · 1991
- Automated sequential gas sampling system17US 6,167,767 ARAI Corporation · 2001