- 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: 3629
10-year publication summary
|
191
|
285
|
299
|
314
|
331
|
380
|
302
|
345
|
328
|
184
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Shimadzu Corporation | 6340 |
413 |
| Waters Technologies Corporation | 1794 |
189 |
| Agilent Technologies, Inc. | 2634 |
117 |
| Regeneron Pharmaceuticals, Inc. | 4701 |
89 |
| Saudi Arabian Oil Company | 14235 |
38 |
| Dionex Softron GmbH | 130 |
36 |
| Hitachi High-Tech Corporation | 5846 |
36 |
| Dionex Corporation | 339 |
30 |
| Thermo Finnigan LLC | 642 |
29 |
| Cytiva Sweden AB | 789 |
26 |
| Schlumberger Technology Corporation | 11818 |
25 |
| The Regents of the University of Michigan | 4985 |
22 |
| Amgen Inc. | 4427 |
20 |
| Roche Diagnostics Operations, Inc. | 1519 |
19 |
| Quest Diagnostics Investments Incorporated | 393 |
19 |
| Rosemount Inc. | 1145 |
19 |
| LG Chem, Ltd. | 17921 |
18 |
| The Regents of the University of California | 20745 |
18 |
| DH Technologies Development Pte. Ltd. | 1172 |
17 |
| MLS Acq, Inc d/b/a Max Analytical Technology | 37 |
17 |
| Other owners | 2432 |