- All sections
- G - Physics
- G01N - Investigating or analysing materials by determining their chemical or physical properties
- G01N 21/72 - Systems in which the material investigated is excited whereby it emits light or causes a change in wavelength of the incident light thermally excited using flame burners
Patent holdings for IPC class G01N 21/72
Total number of patents in this class: 40
10-year publication summary
|
2
|
1
|
2
|
3
|
1
|
3
|
6
|
4
|
1
|
0
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Siemens AG | 24572 |
2 |
| Honeywell International Inc. | 14007 |
2 |
| AD Systems S.A.S. | 10 |
2 |
| Shen Zhen Ener-chemistry Industrial Co. Ltd. | 3 |
2 |
| Halliburton Energy Services, Inc. | 20411 |
1 |
| Bayer AG | 3206 |
1 |
| Alstom Technology Ltd | 1146 |
1 |
| Agilent Technologies, Inc. | 2680 |
1 |
| Shimadzu Corporation | 5999 |
1 |
| Bayer Technology Services GmbH | 189 |
1 |
| CEM Corporation | 99 |
1 |
| The Charles Stark Draper Laboratory, Inc. | 907 |
1 |
| Daniel Bivolaru | 1 |
1 |
| Fireye, Inc. | 9 |
1 |
| The George Washington University | 424 |
1 |
| Geoservice Equipments | 1 |
1 |
| Geoservices Equipements | 60 |
1 |
| Huazhong University of Science and Technology | 986 |
1 |
| Miura Co., Ltd. | 290 |
1 |
| Nowack, William | 1 |
1 |
| Other owners | 16 |