- All sections
- G - Physics
- G01N - Investigating or analysing materials by determining their chemical or physical properties
- G01N 21/89 - Investigating the presence of flaws, defects or contamination in moving material, e.g. paper, textiles
Patent holdings for IPC class G01N 21/89
Total number of patents in this class: 885
10-year publication summary
|
63
|
68
|
84
|
62
|
82
|
63
|
74
|
65
|
65
|
27
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| 3m Innovative Properties Company | 17507 |
25 |
| Bobst Mex SA | 599 |
18 |
| Uster Technologies AG | 168 |
17 |
| Procemex Oy | 34 |
15 |
| Contemporary Amperex Technology Co., Limited | 9185 |
14 |
| Honeywell International Inc. | 12790 |
13 |
| LG Energy Solution, Ltd. | 17861 |
13 |
| Sumitomo Chemical Company, Limited | 9013 |
8 |
| Corning Incorporated | 10431 |
7 |
| ABB Schweiz AG | 7491 |
7 |
| Glasstech, Inc. | 120 |
7 |
| JFE Steel Corporation | 7378 |
7 |
| Metso Automation Oy | 64 |
6 |
| ISRA VISION GmbH | 53 |
6 |
| Siemens AG | 24177 |
5 |
| Toyota Motor Corporation | 34877 |
5 |
| The Boeing Company | 20094 |
5 |
| Panasonic Intellectual Property Management Co., Ltd. | 33690 |
5 |
| Georgia-Pacific Corrugated LLC | 94 |
5 |
| Nippon Steel Corporation | 6738 |
5 |
| Other owners | 692 |