- 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: 3347
10-year publication summary
|
149
|
186
|
270
|
291
|
302
|
312
|
355
|
253
|
317
|
311
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Shimadzu Corporation | 6235 |
390 |
| Waters Technologies Corporation | 1748 |
175 |
| Agilent Technologies, Inc. | 2643 |
103 |
| Regeneron Pharmaceuticals, Inc. | 4453 |
89 |
| Saudi Arabian Oil Company | 13686 |
36 |
| Dionex Softron GmbH | 120 |
31 |
| Dionex Corporation | 326 |
30 |
| Thermo Finnigan LLC | 647 |
28 |
| Hitachi High-Tech Corporation | 5482 |
28 |
| Cytiva Sweden AB | 773 |
25 |
| The Regents of the University of Michigan | 4793 |
22 |
| Schlumberger Technology Corporation | 11075 |
21 |
| Quest Diagnostics Investments Incorporated | 403 |
19 |
| Amgen Inc. | 4256 |
17 |
| MLS Acq, Inc d/b/a Max Analytical Technology | 37 |
17 |
| Roche Diagnostics Operations, Inc. | 1510 |
16 |
| LG Chem, Ltd. | 17706 |
16 |
| Jiangnan University | 1562 |
16 |
| Rosemount Inc. | 1195 |
16 |
| DH Technologies Development Pte. Ltd. | 1139 |
16 |
| Other owners | 2236 |