- 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: 293
10-year publication summary
|
26
|
14
|
28
|
24
|
33
|
28
|
17
|
19
|
17
|
2
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| NGK Insulators, Ltd. | 4793 |
92 |
| Robert Bosch GmbH | 41874 |
51 |
| Denso Corporation | 23851 |
44 |
| Niterra Co., Ltd. | 1203 |
39 |
| NGK Spark Plug Co., Ltd. | 900 |
14 |
| Vitesco Technologies GmbH | 2510 |
10 |
| Continental Automotive GmbH | 5540 |
7 |
| Toyota Motor Corporation | 30591 |
5 |
| Rohm Co., Ltd. | 6385 |
2 |
| Illinois Tool Works Inc. | 11414 |
1 |
| Siemens AG | 24563 |
1 |
| Honeywell International Inc. | 14031 |
1 |
| Hitachi Automotive Systems, Ltd. | 3958 |
1 |
| Ford Global Technologies, LLC | 20129 |
1 |
| California Institute of Technology | 3932 |
1 |
| Shinko Electric Industries Co., Ltd. | 1189 |
1 |
| Ecole Polytechnique Federale de Lausanne (epfl) | 1507 |
1 |
| FPT Motorenforschung AG | 38 |
1 |
| Illumina, Inc. | 3103 |
1 |
| Isuzu Motors Limited | 2244 |
1 |
| Other owners | 18 |