- All sections
- G - Physics
- G01N - Investigating or analysing materials by determining their chemical or physical properties
- G01N 33/20 - Metals
Patent holdings for IPC class G01N 33/20
Total number of patents in this class: 633
10-year publication summary
|
66
|
74
|
77
|
60
|
40
|
34
|
28
|
27
|
13
|
2
|
| 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| JFE Steel Corporation | 6067 |
17 |
| Heraeus Electro-Nite International N.V. | 211 |
14 |
| Nippon Steel & Sumitomo Metal Corporation | 1990 |
7 |
| Saudi Arabian Oil Company | 11322 |
7 |
| LG Chem, Ltd. | 17205 |
6 |
| Massachusetts Institute of Technology | 9795 |
6 |
| Nippon Steel Corporation | 5649 |
6 |
| Novelis Inc. | 656 |
6 |
| Schlumberger Technology Corporation | 9690 |
5 |
| Nippon Telegraph and Telephone Corporation | 14195 |
5 |
| Halliburton Energy Services, Inc. | 20165 |
4 |
| The Regents of the University of California | 18943 |
4 |
| Xerox Corporation | 7503 |
4 |
| The Boeing Company | 19843 |
4 |
| Ajjer, LLC | 13 |
4 |
| ARKRAY, Inc. | 844 |
4 |
| JNC Corporation | 1527 |
4 |
| Outotec (Finland) Oy | 491 |
4 |
| TDW Delaware, Inc. | 163 |
4 |
| ThyssenKrupp AG | 3086 |
4 |
| Other owners | 514 |