- 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: 679
10-year publication summary
|
43
|
53
|
57
|
62
|
61
|
66
|
49
|
42
|
39
|
29
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Shimadzu Corporation | 6195 |
66 |
| Waters Technologies Corporation | 1714 |
43 |
| Agilent Technologies, Inc. | 2632 |
37 |
| Hitachi High-Tech Corporation | 5404 |
26 |
| Cytiva Sweden AB | 764 |
19 |
| Cytiva BioProcess R&D AB | 312 |
18 |
| Leco Corporation | 202 |
15 |
| ExxonMobil Research And Engineering Company | 2562 |
13 |
| GE Healthcare Bio-Sciences AB | 540 |
12 |
| EnTech Instruments Inc. | 45 |
12 |
| Genzyme Corporation | 1297 |
11 |
| The Regents of the University of Michigan | 4753 |
10 |
| Roche Diagnostics Operations, Inc. | 1502 |
9 |
| ChromaCon AG | 40 |
9 |
| F. Hoffmann-La Roche AG | 7947 |
8 |
| Bio-Rad Laboratories, Inc. | 1618 |
8 |
| Miura Co., Ltd. | 291 |
8 |
| Genentech, Inc. | 4012 |
7 |
| IDEX Health & Science LLC | 206 |
7 |
| Regeneron Pharmaceuticals, Inc. | 4362 |
7 |
| Other owners | 334 |