- 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: 3524
10-year publication summary
|
190
|
285
|
299
|
314
|
330
|
373
|
294
|
339
|
321
|
106
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Shimadzu Corporation | 6310 |
404 |
| Waters Technologies Corporation | 1782 |
186 |
| Agilent Technologies, Inc. | 2648 |
113 |
| Regeneron Pharmaceuticals, Inc. | 4632 |
88 |
| Saudi Arabian Oil Company | 13949 |
38 |
| Dionex Softron GmbH | 129 |
36 |
| Hitachi High-Tech Corporation | 5676 |
33 |
| Dionex Corporation | 330 |
30 |
| Thermo Finnigan LLC | 642 |
27 |
| Cytiva Sweden AB | 780 |
26 |
| The Regents of the University of Michigan | 4928 |
22 |
| Schlumberger Technology Corporation | 11549 |
21 |
| Amgen Inc. | 4362 |
19 |
| Quest Diagnostics Investments Incorporated | 394 |
19 |
| Rosemount Inc. | 1157 |
19 |
| Roche Diagnostics Operations, Inc. | 1509 |
18 |
| LG Chem, Ltd. | 17867 |
17 |
| The Regents of the University of California | 20587 |
17 |
| DH Technologies Development Pte. Ltd. | 1160 |
17 |
| MLS Acq, Inc d/b/a Max Analytical Technology | 37 |
17 |
| Other owners | 2357 |