G01N 2001/1454
Positive displacement, piston
Official title: {Positive displacement, piston}
G01N2001/1454 (Positive displacement, piston) appears on 33 US grants and 25 published applications in this corpus.
Search patents in G01N- Granted patents
- 33
- Published applications
- 25
- Assignees
- 20
- Inventors
- 71
- Latest grant
- 7 Jul 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1991 | 2 | 0 |
| 1992 | 3 | 0 |
| 1993 | 1 | 0 |
| 1994 | 3 | 0 |
| 1995 | 2 | 0 |
| 1996 | 0 | 0 |
| 1997 | 1 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 1 | 0 |
| 2001 | 0 | 1 |
| 2002 | 1 | 0 |
| 2003 | 0 | 0 |
| 2004 | 1 | 0 |
| 2005 | 0 | 0 |
| 2006 | 0 | 0 |
| 2007 | 0 | 1 |
| 2008 | 0 | 0 |
| 2009 | 0 | 0 |
| 2010 | 1 | 1 |
| 2011 | 0 | 0 |
| 2012 | 1 | 0 |
| 2013 | 0 | 0 |
| 2014 | 0 | 5 |
| 2015 | 1 | 2 |
| 2016 | 3 | 1 |
| 2017 | 2 | 2 |
| 2018 | 0 | 3 |
| 2019 | 3 | 4 |
| 2020 | 2 | 1 |
| 2021 | 1 | 0 |
| 2022 | 1 | 0 |
| 2023 | 2 | 0 |
| 2024 | 0 | 1 |
| 2025 | 0 | 3 |
| 2026 | 1 | 0 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
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- Conveying device for conveying a viscous material from a container, and method for operating the conveying device18 Jul 2023US 11,701,808 B2Wagner International AG
- Measuring an adsorbing chemical in downhole fluids17 Jan 2023US 11,555,401 B2Halliburton Energy Services.Inc.
- Device, system, and method for selecting a target analyte25 Jan 2022US 11,231,344 B2RareCyte, Inc.
- Detecting a substrate6 Jul 2021US 11,054,346 B2RareCyte, Inc.
- Salt sampling system and apparatus25 Sep 2025US 2025/0297927 A1Abilene Christian University
- Sample preparation device and methods of use thereof18 Sep 2025US 2025/0290836 A1Akonni Biosystems, Inc.
- Cryogenic sampling system7 Aug 2025US 2025/0251316 A1Welker, Inc.
- Filtrate sampling device29 Aug 2024US 2024/0288341 A1Valmet Automation Oy
- Measuring an adsorbing chemical in downhole fluids31 Dec 2020US 2020/0408092 A1Halliburton Energy Services.Inc.
Most cited
By later US patents
- Solids and semi-solids sampling apparatus, method, and fluid injection apparatus29US 5,147,551 ADynatech Precision Sampling Corporation · 1992
- Direct mount system for a fluid sampling pump and method15US 5,109,709 A1992
- Sensing system for detecting a substance in a dialysate15US 9,138,524 B2Temasek Polytechnic · 2015
- Fluid sampling pump13US 5,074,154 APrecision General, Inc. · 1991
- Fluid sampling pump12US 5,191,801 APrecision General, Inc. · 1993