- All sections
- G - Physics
- G01N - Investigating or analysing materials by determining their chemical or physical properties
- G01N 30/02 - Column chromatography
Patent holdings for IPC class G01N 30/02
Total number of patents in this class: 3209
10-year publication summary
|
149
|
186
|
270
|
291
|
301
|
309
|
337
|
232
|
307
|
218
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Shimadzu Corporation | 6179 |
373 |
| Waters Technologies Corporation | 1697 |
167 |
| Agilent Technologies, Inc. | 2638 |
93 |
| Regeneron Pharmaceuticals, Inc. | 4288 |
86 |
| Saudi Arabian Oil Company | 13224 |
33 |
| Dionex Softron GmbH | 116 |
32 |
| Dionex Corporation | 329 |
28 |
| Hitachi High-Tech Corporation | 5339 |
26 |
| Thermo Finnigan LLC | 638 |
25 |
| Cytiva Sweden AB | 763 |
25 |
| The Regents of the University of Michigan | 4711 |
20 |
| Schlumberger Technology Corporation | 10780 |
19 |
| Quest Diagnostics Investments Incorporated | 404 |
19 |
| MLS Acq, Inc d/b/a Max Analytical Technology | 37 |
17 |
| Roche Diagnostics Operations, Inc. | 1492 |
16 |
| LG Chem, Ltd. | 17635 |
16 |
| Jiangnan University | 1531 |
16 |
| PerkinElmer U.S. LLC | 291 |
16 |
| Amgen Inc. | 4076 |
15 |
| DH Technologies Development Pte. Ltd. | 1115 |
15 |
| Other owners | 2152 |