- 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: 3438
10-year publication summary
|
186
|
270
|
291
|
303
|
316
|
358
|
269
|
326
|
317
|
48
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Shimadzu Corporation | 6276 |
397 |
| Waters Technologies Corporation | 1767 |
180 |
| Agilent Technologies, Inc. | 2652 |
109 |
| Regeneron Pharmaceuticals, Inc. | 4531 |
88 |
| Saudi Arabian Oil Company | 13865 |
38 |
| Dionex Softron GmbH | 122 |
33 |
| Hitachi High-Tech Corporation | 5578 |
31 |
| Dionex Corporation | 326 |
30 |
| Thermo Finnigan LLC | 640 |
28 |
| Cytiva Sweden AB | 774 |
25 |
| The Regents of the University of Michigan | 4851 |
22 |
| Schlumberger Technology Corporation | 11298 |
21 |
| Quest Diagnostics Investments Incorporated | 396 |
19 |
| Amgen Inc. | 4304 |
18 |
| LG Chem, Ltd. | 17745 |
17 |
| Rosemount Inc. | 1178 |
17 |
| DH Technologies Development Pte. Ltd. | 1145 |
17 |
| MLS Acq, Inc d/b/a Max Analytical Technology | 37 |
17 |
| Roche Diagnostics Operations, Inc. | 1505 |
16 |
| Jiangnan University | 1577 |
16 |
| Other owners | 2299 |