G01N 2030/322
Pulse dampers
Official title: {pulse dampers}
G01N2030/322 (Pulse dampers) appears on 56 US grants and 36 published applications in this corpus.
Search patents in G01N- Granted patents
- 56
- Published applications
- 36
- Assignees
- 35
- Inventors
- 109
- Latest grant
- 29 Jul 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 4 | 0 |
| 1977 | 2 | 0 |
| 1978 | 0 | 0 |
| 1979 | 1 | 0 |
| 1980 | 3 | 0 |
| 1981 | 2 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 2 | 0 |
| 1985 | 1 | 0 |
| 1986 | 4 | 0 |
| 1987 | 1 | 0 |
| 1988 | 0 | 0 |
| 1989 | 3 | 0 |
| 1990 | 1 | 0 |
| 1991 | 0 | 0 |
| 1992 | 2 | 0 |
| 1993 | 2 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 2 | 0 |
| 1998 | 0 | 0 |
| 1999 | 1 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 1 |
| 2002 | 0 | 2 |
| 2003 | 1 | 1 |
| 2004 | 2 | 3 |
| 2005 | 1 | 2 |
| 2006 | 0 | 0 |
| 2007 | 1 | 1 |
| 2008 | 1 | 6 |
| 2009 | 0 | 0 |
| 2010 | 2 | 2 |
| 2011 | 0 | 1 |
| 2012 | 3 | 2 |
| 2013 | 0 | 1 |
| 2014 | 1 | 0 |
| 2015 | 1 | 1 |
| 2016 | 2 | 0 |
| 2017 | 1 | 3 |
| 2018 | 1 | 1 |
| 2019 | 0 | 0 |
| 2020 | 0 | 2 |
| 2021 | 0 | 3 |
| 2022 | 2 | 1 |
| 2023 | 3 | 0 |
| 2024 | 2 | 2 |
| 2025 | 1 | 1 |
By publication year. Applications have been published since 2001.
Recent patents
- Gradient proportioning valve29 Jul 2025US 12,372,501 B2Waters Technologies Corporation
- Liquid chromatograph11 Jun 2024US 12,007,373 B2Shimadzu Corporation
- Gradient proportioning valve26 Mar 2024US 11,940,424 B2Waters Technologies Corporation
- Active dampening gradient proportioning valve21 Nov 2023US 11,821,880 B2Waters Technologies Corporation
- Passive dampening gradient proportioning valve21 Nov 2023US 11,821,881 B2Waters Technologies Corporation
- Analytical device with solvent-information evaluation27 Nov 2025US 2025/0362276 A1Agilent Technologies, Inc.
- Column flow dampener for mals noise reduction during sec-mals analysis19 Dec 2024US 2024/0416259 A1Waters Technologies Corporation
- Gradient proportioning valve18 Jul 2024US 2024/0241087 A1Waters Technologies Corporation
- Liquid chromatograph12 May 2022US 2022/0146474 A1Shimadzu Corporation
- Gradient proportioning valve27 May 2021US 2021/0156827 A1Waters Technologies Corporation
Most cited
By later US patents
- Microfluidic devices and methods of use138US 7,258,774 B2California Institute of Technology · 2007
- Pumping apparatus for delivering liquid at high pressure112US 4,883,409 A1989
- Velocity independent analyte characterization95US 7,678,547 B2California Institute of Technology · 2010
- Multichannel pump apparatus with microflow rate capability89US 5,253,981 A1993
- Multichannel pump apparatus with microflow rate capability71US 5,630,706 A1997