- 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: 871
10-year publication summary
|
58
|
63
|
79
|
56
|
71
|
53
|
67
|
61
|
61
|
14
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| 3m Innovative Properties Company | 17596 |
25 |
| Bobst Mex SA | 593 |
18 |
| Uster Technologies AG | 169 |
17 |
| Procemex Oy | 34 |
15 |
| LG Energy Solution, Ltd. | 16802 |
13 |
| Contemporary Amperex Technology Co., Limited | 8590 |
12 |
| Honeywell International Inc. | 13564 |
10 |
| Sumitomo Chemical Company, Limited | 9051 |
8 |
| Corning Incorporated | 10396 |
7 |
| ABB Schweiz AG | 7323 |
7 |
| Glasstech, Inc. | 119 |
7 |
| JFE Steel Corporation | 7199 |
7 |
| The Boeing Company | 20111 |
6 |
| Metso Automation Oy | 71 |
6 |
| ISRA VISION GmbH | 52 |
6 |
| Siemens AG | 24291 |
5 |
| Panasonic Intellectual Property Management Co., Ltd. | 33033 |
5 |
| Georgia-Pacific Corrugated LLC | 98 |
5 |
| Nippon Steel Corporation | 6607 |
5 |
| ThyssenKrupp Steel Europe AG | 972 |
5 |
| Other owners | 682 |