- All sections
- G - Physics
- G01N - Investigating or analysing materials by determining their chemical or physical properties
- G01N 30/46 - Flow patterns using more than one column
Patent holdings for IPC class G01N 30/46
Total number of patents in this class: 700
10-year publication summary
|
56
|
59
|
65
|
63
|
71
|
49
|
44
|
41
|
35
|
24
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Shimadzu Corporation | 6376 |
72 |
| Waters Technologies Corporation | 1801 |
44 |
| Agilent Technologies, Inc. | 2643 |
39 |
| Hitachi High-Tech Corporation | 5987 |
28 |
| Cytiva Sweden AB | 797 |
20 |
| Cytiva BioProcess R&D AB | 322 |
20 |
| Leco Corporation | 198 |
16 |
| ExxonMobil Research And Engineering Company | 2391 |
13 |
| GE Healthcare Bio-Sciences AB | 502 |
12 |
| EnTech Instruments Inc. | 45 |
12 |
| The Regents of the University of Michigan | 5051 |
11 |
| Genzyme Corporation | 1381 |
10 |
| Roche Diagnostics Operations, Inc. | 1522 |
9 |
| ChromaCon AG | 41 |
9 |
| F. Hoffmann-La Roche AG | 7792 |
8 |
| Bio-Rad Laboratories, Inc. | 1609 |
8 |
| IDEX Health & Science LLC | 203 |
8 |
| Miura Co., Ltd. | 286 |
8 |
| Genentech, Inc. | 4147 |
7 |
| Regeneron Pharmaceuticals, Inc. | 4822 |
7 |
| Other owners | 339 |