G01N 2030/8872
Impurities
Official title: {impurities}
G01N2030/8872 (Impurities) appears on 55 US grants and 81 published applications in this corpus.
Search patents in G01N- Granted patents
- 55
- Published applications
- 81
- Assignees
- 74
- Inventors
- 253
- Latest grant
- 14 Apr 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1994 | 1 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 1 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 1 | 0 |
| 2001 | 0 | 0 |
| 2002 | 2 | 1 |
| 2003 | 0 | 1 |
| 2004 | 2 | 2 |
| 2005 | 0 | 1 |
| 2006 | 2 | 1 |
| 2007 | 0 | 0 |
| 2008 | 1 | 0 |
| 2009 | 0 | 1 |
| 2010 | 0 | 2 |
| 2011 | 1 | 4 |
| 2012 | 2 | 1 |
| 2013 | 1 | 2 |
| 2014 | 0 | 4 |
| 2015 | 3 | 5 |
| 2016 | 2 | 4 |
| 2017 | 2 | 3 |
| 2018 | 5 | 4 |
| 2019 | 4 | 7 |
| 2020 | 4 | 3 |
| 2021 | 5 | 4 |
| 2022 | 3 | 8 |
| 2023 | 4 | 6 |
| 2024 | 5 | 6 |
| 2025 | 3 | 3 |
| 2026 | 1 | 8 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Method for pretreating ranitidine hydrochloride sample14 Apr 2026US 12,601,718 B2Hunan Institute for Drug Inspection and Testing
- Analytical methods of assessing cytisine purity23 Sep 2025US 12,422,415 B2Achieve Life Sciences, Inc.
- Analytical determination of dissolved gas concentration in water pipelines15 Jul 2025US 12,360,098 B2Saudi Arabian Oil Company
- Radiopharmaceutical production system and quality control system utilizing high performance liquid chromatography25 Feb 2025US 12,235,250 B2Best ABT, Inc.
- Controlling the purification of a macromolecule solution via real-time multi-angle light scattering5 Nov 2024US 12,135,316 B2Wyatt Technology Corporation
- Lc-ms method for analyzing carbon capture solvents and their degradation products13 Aug 2026US 2026/0233123 A1Aramco Services Company
- Solvent for gas chromatograpy mass spectometry, and method for determination of fluorine-containing substances on the surface of fluororesin melt-molded products30 Jul 2026US 2026/0219244 A1Chemours-Mitsui Fluoroproducts Co., Ltd.
- Process for producing renewable hydrocarbons from renewable feedstock comprising phosphorus as impurity23 Jul 2026US 2026/0209606 A1Neste Oyj
- Analysis system and method for impurity components in perfluoropropane23 Jul 2026US 2026/0210916 A1Lansis Instrument (Shanghai) Co., Ltd
- Liquid chromatography-mass spectrometry system25 Jun 2026US 2026/0175166 A1Shenzhen Mindray Bio-Medical Electronics Co., Ltd.
Most cited
By later US patents
- Protein chromatography system56US 6,344,172 B12002
- Automated radionuclide separation system and method49US 6,787,042 B2PG Research Foundation · 2004
- Method for detecting trace contaminants25US 5,306,426 APerSeptive Biosystems, Inc. · 1994
- Gas chromatographic analysis of fluoromethyl-1,1,1,3,3,3-hexafluoroisopropyl ether21US 5,679,576 ACentral Glass Company, Limited · 1997
- Analytical apparatus and instrumentation for on-line measurement of volatile organic compounds in fluids18US 6,112,602 ANew Jersey Institute of Technology · 2000