- All sections
- G - Physics
- G01N - Investigating or analysing materials by determining their chemical or physical properties
- G01N 27/419 - Measuring voltages or currents with a combination of oxygen pumping cells and oxygen concentration cells
Patent holdings for IPC class G01N 27/419
Total number of patents in this class: 296
10-year publication summary
|
14
|
28
|
24
|
33
|
28
|
20
|
20
|
17
|
6
|
6
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| NGK Insulators, Ltd. | 5174 |
97 |
| Robert Bosch GmbH | 44327 |
47 |
| Denso Corporation | 25746 |
44 |
| Niterra Co., Ltd. | 1430 |
40 |
| NGK Spark Plug Co., Ltd. | 872 |
13 |
| Vitesco Technologies GmbH | 2396 |
10 |
| Continental Automotive GmbH | 4448 |
7 |
| Toyota Motor Corporation | 36159 |
6 |
| Rohm Co., Ltd. | 6908 |
2 |
| Illinois Tool Works Inc. | 11879 |
1 |
| Siemens AG | 23956 |
1 |
| Honeywell International Inc. | 12766 |
1 |
| Hitachi Automotive Systems, Ltd. | 3954 |
1 |
| Ford Global Technologies, LLC | 21613 |
1 |
| California Institute of Technology | 4038 |
1 |
| Shinko Electric Industries Co., Ltd. | 1246 |
1 |
| FPT Motorenforschung AG | 38 |
1 |
| Illumina, Inc. | 3538 |
1 |
| Isuzu Motors Limited | 2334 |
1 |
| IVECO Motorenforschung AG | 11 |
1 |
| Other owners | 19 |