- All sections
- G - Physics
- G01N - Investigating or analysing materials by determining their chemical or physical properties
- G01N 21/3577 - Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry using infrared light for analysing liquids, e.g. polluted water
Patent holdings for IPC class G01N 21/3577
Total number of patents in this class: 998
10-year publication summary
|
65
|
77
|
95
|
83
|
104
|
98
|
81
|
78
|
78
|
30
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Schlumberger Technology Corporation | 11798 |
29 |
| Halliburton Energy Services, Inc. | 21320 |
23 |
| Saudi Arabian Oil Company | 14207 |
16 |
| RedShift Bioanalytics, Inc. | 30 |
13 |
| Jp3 Measurement, LLC | 32 |
11 |
| Samsung Electronics Co., Ltd. | 157557 |
9 |
| Massachusetts Institute of Technology | 10239 |
9 |
| California Institute of Technology | 4043 |
8 |
| Airware, Inc | 21 |
8 |
| Nirrin Technologies, Inc. | 32 |
8 |
| Chevron U.S.A. Inc. | 4134 |
7 |
| Shimadzu Corporation | 6337 |
7 |
| 1087 Systems, Inc. | 23 |
7 |
| Genzyme Corporation | 1369 |
6 |
| Klein Medical Limited | 11 |
6 |
| SPECTRO Scientific, Inc. | 42 |
6 |
| Virtual Fluid Monitoring Services LLC | 10 |
6 |
| Hitachi High-Tech Corporation | 5819 |
6 |
| Zyomed Holdings, Inc. | 9 |
6 |
| Dxcover Limited | 31 |
6 |
| Other owners | 801 |