H01J 49/0431
For liquid samples
Official title: {for liquid samples (interfaces to liquid chromatographs G01N30/7233)}
H01J49/0431 (For liquid samples) appears on 932 US grants and 931 published applications in this corpus.
Search patents in H01J- Granted patents
- 932
- Published applications
- 931
- Assignees
- 341
- Inventors
- 1,369
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1977 | 1 | 0 |
| 1978 | 1 | 0 |
| 1979 | 1 | 0 |
| 1980 | 1 | 0 |
| 1981 | 3 | 0 |
| 1982 | 1 | 0 |
| 1983 | 2 | 0 |
| 1984 | 0 | 0 |
| 1985 | 1 | 0 |
| 1986 | 2 | 0 |
| 1987 | 3 | 0 |
| 1988 | 7 | 0 |
| 1989 | 10 | 0 |
| 1990 | 10 | 0 |
| 1991 | 7 | 0 |
| 1992 | 8 | 0 |
| 1993 | 4 | 0 |
| 1994 | 9 | 0 |
| 1995 | 5 | 0 |
| 1996 | 9 | 0 |
| 1997 | 6 | 0 |
| 1998 | 4 | 0 |
| 1999 | 14 | 0 |
| 2000 | 8 | 0 |
| 2001 | 11 | 7 |
| 2002 | 11 | 20 |
| 2003 | 23 | 19 |
| 2004 | 22 | 16 |
| 2005 | 16 | 24 |
| 2006 | 17 | 22 |
| 2007 | 17 | 12 |
| 2008 | 14 | 18 |
| 2009 | 7 | 15 |
| 2010 | 15 | 22 |
| 2011 | 11 | 22 |
| 2012 | 14 | 27 |
| 2013 | 26 | 29 |
| 2014 | 41 | 39 |
| 2015 | 36 | 63 |
| 2016 | 41 | 43 |
| 2017 | 50 | 39 |
| 2018 | 42 | 63 |
| 2019 | 53 | 58 |
| 2020 | 71 | 72 |
| 2021 | 68 | 70 |
| 2022 | 55 | 52 |
| 2023 | 57 | 60 |
| 2024 | 37 | 66 |
| 2025 | 27 | 32 |
| 2026 | 33 | 21 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Identifying and classifying microorganisms6 Oct 2026US 12,753,428 B2Board of Regents, The University of Texas System
- Automated systems and methods for separating compounds6 Oct 2026US 12,755,950 B2DH Technologies Development Pte. Ltd.
- Exhaust flow boosting for sampling probe for use in mass spectrometry systems and methods6 Oct 2026US 12,755,951 B2DH Technologies Development Pte. Ltd.
- Mass spectrometer6 Oct 2026US 12,755,952 B2YOUNG IN ACE Co., Ltd.
- Systems and methods for recovering organic contaminants from semiconducting wafers29 Sep 2026US 12,749,667 B2Elemental Scientific, Inc.
- Open port interface having hydrophobic or hydrophilic properties10 Sep 2026US 2026/0269204 A1DH Technologies Development Pte. Ltd.
- Rapid evaporative ionisation mass spectrometry ("reims") and desorption electrospray ionisation mass spectrometry ("desi-ms") analysis of swabs and biopsy samples10 Sep 2026US 2026/0269206 A1Micromass UK Limited
- Paper-based microfluidic platform and method for particle spectrometry analysis20 Aug 2026US 2026/0245851 A1The Trustees of Indiana University
- Apparatus for automatically measuring and monitoring taste and odor-causing substance in water (raw water, purified water, and discharged water)20 Aug 2026US 2026/0245852 A1Keystone Snt Inc.
- Interface and method for the preparation of material for transfer into a mass spectrometer13 Aug 2026US 2026/0237624 A1Centre Hospitalier Universitaire De Lille
Most cited
By later US patents
- Microscale fluid handling system662US 5,872,010 ANortheastern University · 1999
- Apparatus for forming liquid droplets having a mechanically fixed inner microtube193US 5,868,322 AHewlett-Packard Company · 1999
- Ion spray apparatus and method156US 4,861,988 ACornell Research Foundation, Inc. · 1989
- Microfluidic array devices and methods of manufacture and uses thereof153US 6,800,849 B22004
- Method and apparatus for electrospray ionization137US 6,297,499 B12001