- 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: 792
10-year publication summary
|
50
|
42
|
63
|
68
|
84
|
62
|
83
|
60
|
68
|
25
|
| 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| 3m Innovative Properties Company | 18406 |
24 |
| Uster Technologies AG | 171 |
21 |
| Bobst Mex SA | 542 |
18 |
| Procemex Oy | 40 |
15 |
| Honeywell International Inc. | 13799 |
12 |
| Corning Incorporated | 9932 |
8 |
| Sumitomo Chemical Company, Limited | 8808 |
8 |
| ABB Schweiz AG | 6321 |
7 |
| Glasstech, Inc. | 131 |
7 |
| JFE Steel Corporation | 6067 |
7 |
| The Boeing Company | 19843 |
6 |
| Contemporary Amperex Technology Co., Limited | 5805 |
6 |
| Metso Automation Oy | 84 |
6 |
| Ricoh Company, Ltd. | 13266 |
5 |
| Georgia-Pacific Corrugated LLC | 111 |
5 |
| Nippon Steel Corporation | 5649 |
5 |
| ThyssenKrupp Steel Europe AG | 924 |
5 |
| Trützschler GmbH & Co. KG | 146 |
5 |
| Valmet Automation Oy | 107 |
5 |
| LG Energy Solution, Ltd. | 10813 |
5 |
| Other owners | 612 |