- All sections
- G - Physics
- G01N - Investigating or analysing materials by determining their chemical or physical properties
- G01N 21/15 - Preventing contamination of the components of the optical system or obstruction of the light path
Patent holdings for IPC class G01N 21/15
Total number of patents in this class: 625
10-year publication summary
|
47
|
67
|
44
|
58
|
65
|
47
|
46
|
34
|
31
|
9
|
| 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Hach Lange GmbH | 137 |
17 |
| Ecolab USA Inc. | 5190 |
11 |
| Robert Bosch GmbH | 40953 |
9 |
| Advanced Sensors Limited | 21 |
9 |
| LaMotte Chemical Products Company | 31 |
9 |
| VUV Analytics, Inc. | 15 |
7 |
| Schlumberger Technology Corporation | 9690 |
6 |
| Abbott Laboratories | 2542 |
6 |
| HORIBA, Ltd. | 746 |
6 |
| Proanalysis AS | 7 |
6 |
| Danfoss Ixa A/S | 14 |
6 |
| Halliburton Energy Services, Inc. | 20165 |
5 |
| bioMerieux, Inc. | 391 |
5 |
| Dräger Safety AG & Co. KGaA | 401 |
5 |
| Endress + Hauser Conducta GmbH + Co. KG | 292 |
5 |
| Fujikin Incorporated | 671 |
5 |
| Gen-Probe Incorporated | 954 |
5 |
| Inov8 Systems Limited | 6 |
5 |
| F. Hoffmann-La Roche AG | 7958 |
4 |
| Siemens AG | 24990 |
4 |
| Other owners | 490 |