G01N 30/34
Of fluid composition
Official title: of fluid composition, e.g. gradient (G01N30/36 takes precedence)
G01N30/34 (Of fluid composition) appears on 703 US grants and 751 published applications in this corpus.
Search patents in G01N- Granted patents
- 703
- Published applications
- 751
- Assignees
- 377
- Inventors
- 1,631
- Latest grant
- 15 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 6 | 0 |
| 1977 | 6 | 0 |
| 1978 | 4 | 0 |
| 1979 | 4 | 0 |
| 1980 | 7 | 0 |
| 1981 | 2 | 0 |
| 1982 | 3 | 0 |
| 1983 | 5 | 0 |
| 1984 | 6 | 0 |
| 1985 | 7 | 0 |
| 1986 | 8 | 0 |
| 1987 | 6 | 0 |
| 1988 | 3 | 0 |
| 1989 | 12 | 0 |
| 1990 | 6 | 0 |
| 1991 | 15 | 0 |
| 1992 | 12 | 0 |
| 1993 | 11 | 0 |
| 1994 | 15 | 0 |
| 1995 | 10 | 0 |
| 1996 | 5 | 0 |
| 1997 | 5 | 0 |
| 1998 | 13 | 0 |
| 1999 | 12 | 0 |
| 2000 | 9 | 0 |
| 2001 | 16 | 2 |
| 2002 | 8 | 16 |
| 2003 | 11 | 12 |
| 2004 | 10 | 16 |
| 2005 | 10 | 24 |
| 2006 | 14 | 18 |
| 2007 | 8 | 19 |
| 2008 | 14 | 23 |
| 2009 | 8 | 22 |
| 2010 | 14 | 20 |
| 2011 | 14 | 25 |
| 2012 | 19 | 20 |
| 2013 | 14 | 37 |
| 2014 | 15 | 22 |
| 2015 | 15 | 32 |
| 2016 | 18 | 27 |
| 2017 | 24 | 24 |
| 2018 | 21 | 39 |
| 2019 | 32 | 36 |
| 2020 | 28 | 55 |
| 2021 | 29 | 47 |
| 2022 | 34 | 45 |
| 2023 | 30 | 56 |
| 2024 | 50 | 51 |
| 2025 | 38 | 35 |
| 2026 | 17 | 28 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Preparative system15 Sep 2026US 12,736,507 B2Shimadzu Corporation
- Ceramic joint body, method of manufacturing the same, and mixing member for liquid chromatography9 Jun 2026US 12,650,413 B2KYOCERA Corporation
- Use of neutral pH mobile phases in reversed phase chromatography of acidic peptides12 May 2026US 12,624,065 B2Waters Technologies Corporation
- Fluid mixing by fluid supply lines with line-specific fluid pumps for liquid chromatography5 May 2026US 12,618,812 B2Agilent Technologies, Inc.
- Electrolytic device noise reduction and lifetime improvement using modulated driver21 Apr 2026US 12,607,608 B2Dionex Corporation
- Lc-ms method for analyzing carbon capture solvents and their degradation products13 Aug 2026US 2026/0233123 A1Aramco Services Company
- Method for analyzing oral care composition13 Aug 2026US 2026/0235563 A1Shimadzu Corporation
- Extraction of nuclear and chromatin-bound proteins using volatile salts6 Aug 2026US 2026/0226097 A1Talus Bioscience, Inc.
- Means and methods to purify and/or quantify fucoidan30 Jul 2026US 2026/0218269 A1
- Fractionation method and fractionation apparatus30 Jul 2026US 2026/0219241 A1Shimadzu Corporation
Most cited
By later US patents
- Method for displacement chromatography114US 6,576,134 B12003
- Pumping apparatus for delivering liquid at high pressure112US 4,883,409 A1989
- Monolithic microfluidic concentrators and mixers107US 6,887,384 B1The Regents of the University of California · 2005
- Method for carrying out analytical determinations101US 4,515,889 ABoehringer Mannheim GmbH · 1985
- Pumping system94US 4,225,290 AInstrumentation Specialties Company · 1980