- 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: 3538
10-year publication summary
|
190
|
285
|
299
|
314
|
330
|
377
|
295
|
340
|
324
|
115
|
| 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 | 1791 |
188 |
| Agilent Technologies, Inc. | 2647 |
115 |
| Regeneron Pharmaceuticals, Inc. | 4643 |
88 |
| Saudi Arabian Oil Company | 13956 |
38 |
| Dionex Softron GmbH | 129 |
36 |
| Hitachi High-Tech Corporation | 5694 |
34 |
| Dionex Corporation | 329 |
30 |
| Thermo Finnigan LLC | 642 |
27 |
| Cytiva Sweden AB | 782 |
26 |
| Schlumberger Technology Corporation | 11584 |
22 |
| The Regents of the University of Michigan | 4933 |
22 |
| Amgen Inc. | 4383 |
20 |
| Quest Diagnostics Investments Incorporated | 394 |
19 |
| Rosemount Inc. | 1152 |
19 |
| Roche Diagnostics Operations, Inc. | 1510 |
18 |
| LG Chem, Ltd. | 17883 |
17 |
| The Regents of the University of California | 20590 |
17 |
| DH Technologies Development Pte. Ltd. | 1160 |
17 |
| MLS Acq, Inc d/b/a Max Analytical Technology | 37 |
17 |
| Other owners | 2364 |