G01N 2001/244
Using critical flow orifices
Official title: {using critical flow orifices}
G01N2001/244 (Using critical flow orifices) appears on 48 US grants and 18 published applications in this corpus.
Search patents in G01N- Granted patents
- 48
- Published applications
- 18
- Assignees
- 37
- Inventors
- 82
- Latest grant
- 4 Feb 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 2 | 0 |
| 1978 | 1 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 1 | 0 |
| 1982 | 0 | 0 |
| 1983 | 1 | 0 |
| 1984 | 3 | 0 |
| 1985 | 0 | 0 |
| 1986 | 1 | 0 |
| 1987 | 1 | 0 |
| 1988 | 0 | 0 |
| 1989 | 1 | 0 |
| 1990 | 2 | 0 |
| 1991 | 1 | 0 |
| 1992 | 1 | 0 |
| 1993 | 3 | 0 |
| 1994 | 2 | 0 |
| 1995 | 1 | 0 |
| 1996 | 0 | 0 |
| 1997 | 1 | 0 |
| 1998 | 2 | 0 |
| 1999 | 2 | 0 |
| 2000 | 2 | 0 |
| 2001 | 4 | 2 |
| 2002 | 2 | 0 |
| 2003 | 1 | 2 |
| 2004 | 0 | 0 |
| 2005 | 0 | 1 |
| 2006 | 1 | 0 |
| 2007 | 0 | 2 |
| 2008 | 1 | 1 |
| 2009 | 0 | 0 |
| 2010 | 1 | 0 |
| 2011 | 1 | 0 |
| 2012 | 0 | 2 |
| 2013 | 0 | 0 |
| 2014 | 1 | 0 |
| 2015 | 0 | 0 |
| 2016 | 0 | 0 |
| 2017 | 1 | 1 |
| 2018 | 0 | 0 |
| 2019 | 0 | 2 |
| 2020 | 1 | 2 |
| 2021 | 1 | 1 |
| 2022 | 1 | 0 |
| 2023 | 2 | 1 |
| 2024 | 0 | 1 |
| 2025 | 1 | 0 |
By publication year. Applications have been published since 2001.
Recent patents
- Station and method for measuring airborne molecular contamination4 Feb 2025US 12,216,031 B2Pfeiffer Vacuum GmbH
- Particulate sampling device and analysis12 Dec 2023US 11,841,299 B2Bioscout Pty Ltd
- Particle detection device and a method for detecting airborne particles21 Mar 2023US 11,609,173 B2Nederlandse Organisatie voor toegepast-natuurwetenschappelijk onderzoek TNO
- Exhaust gas sample taking system2 Aug 2022US 11,402,302 B2Avl Emission Test Systems GmbH
- Particle collector6 Apr 2021US 10,969,308 B2Seagate Technology LLC
- Particulate sampling device and analysis14 Mar 2024US 2024/0085280 A1Bioscout Pty Ltd
- Station and method for measuring airborne molecular contamination13 Jul 2023US 2023/0221220 A1Pfeiffer Vacuum GmbH
- Particulate sampling device and analysis19 Aug 2021US 2021/0255068 A1Bioscout Pty Ltd
- Exhaust gas sample taking system8 Oct 2020US 2020/0319064 A1Avl Emission Test Systems GmbH
- Particle detection device and a method for detecting airborne particles9 Jul 2020US 2020/0217771 A1Nederlandse Organisatie voor toegepast-natuurwetenschappelijk onderzoek TNO
Most cited
By later US patents
- Aerosol particle sensor with axial fan324US 7,667,839 B2Particle Measuring Systems, Inc. · 2010
- Air pump for particle sensing using regenerative fan, and associated methods97US 6,167,107 AParticle Measuring Systems, Inc. · 2000
- Flow monitored particle sensor55US 8,800,383 B2Particle Measuring Systems, Inc. · 2014
- Gas sampling device and dilution tunnel used therewith47US 5,058,440 ACaterpillar Inc. · 1991
- Constant flowrate controller for an aerosol sampler using a filter44US 5,317,930 AWedding & Associates, Inc. · 1994