- All sections
- G - Physics
- G01N - Investigating or analysing materials by determining their chemical or physical properties
- G01N 27/41 - Oxygen pumping cells
Patent holdings for IPC class G01N 27/41
Total number of patents in this class: 425
10-year publication summary
|
30
|
41
|
42
|
39
|
42
|
43
|
38
|
22
|
22
|
15
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| NGK Insulators, Ltd. | 5174 |
148 |
| Denso Corporation | 25746 |
110 |
| Niterra Co., Ltd. | 1430 |
36 |
| TOYOTA JIDOSHA KABUSHIKI KAISHA (also trading as TOYOTA MOTOR CORPORATION) | 12324 |
16 |
| Robert Bosch GmbH | 44327 |
14 |
| NGK Spark Plug Co., Ltd. | 872 |
11 |
| Toyota Motor Corporation | 36159 |
8 |
| Rohm Co., Ltd. | 6908 |
8 |
| Mitsui Mining & Smelting Co., Ltd. | 1064 |
5 |
| ASCO Power Technologies, L.P. | 83 |
4 |
| Tanaka Kikinzoku Kogyo K.K. | 574 |
4 |
| BorgWarner US Technologies LLC | 431 |
3 |
| The Regents of the University of California | 20902 |
2 |
| Taiwan Semiconductor Manufacturing Company, Ltd. | 48861 |
2 |
| Nippon Telegraph and Telephone Corporation | 15913 |
2 |
| Holley Performance Products, Inc. | 446 |
2 |
| Kabushiki Kaisha Toyota Chuo Kenkyusho | 706 |
2 |
| Loughborough University | 98 |
2 |
| Nippon Electric Glass Co., Ltd. | 2567 |
2 |
| Scania CV AB | 2414 |
2 |
| Other owners | 42 |