- 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: 639
10-year publication summary
|
49
|
44
|
56
|
59
|
64
|
63
|
67
|
46
|
42
|
7
|
| 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Shimadzu Corporation | 5791 |
55 |
| Agilent Technologies, Inc. | 2744 |
37 |
| Waters Technologies Corporation | 1654 |
35 |
| Hitachi High-Tech Corporation | 4424 |
21 |
| Cytiva BioProcess R&D AB | 287 |
18 |
| Cytiva Sweden AB | 741 |
17 |
| ExxonMobil Research And Engineering Company | 2830 |
15 |
| GE Healthcare Bio-Sciences AB | 570 |
12 |
| EnTech Instruments Inc. | 38 |
12 |
| Leco Corporation | 200 |
10 |
| F. Hoffmann-La Roche AG | 7958 |
9 |
| ChromaCon AG | 35 |
9 |
| Genzyme Corporation | 1205 |
9 |
| Roche Diagnostics Operations, Inc. | 1375 |
8 |
| The Regents of the University of Michigan | 4409 |
8 |
| Bio-Rad Laboratories, Inc. | 1592 |
8 |
| Miura Co., Ltd. | 287 |
8 |
| Regeneron Pharmaceuticals, Inc. | 3650 |
8 |
| Genentech, Inc. | 3742 |
7 |
| IDEX Health & Science LLC | 205 |
7 |
| Other owners | 326 |