- All sections
- G - Physics
- G08B - Signalling or calling systemsorder telegraphsalarm systems
- G08B 21/16 - Combustible gas alarms
Patent holdings for IPC class G08B 21/16
Total number of patents in this class: 206
10-year publication summary
|
17
|
31
|
21
|
19
|
18
|
17
|
27
|
23
|
18
|
6
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Industrial Scientific Corporation | 110 |
11 |
| Honeywell International Inc. | 12778 |
10 |
| Chengdu Qinchuan IoT Technology Co., Ltd. | 543 |
10 |
| Project Canary, PBC | 48 |
7 |
| Itron, Inc. | 983 |
6 |
| Dräger Safety AG & Co. KGaA | 470 |
5 |
| Osaka Gas Co., Ltd. | 314 |
5 |
| Shenzhen Wintry Information Technology Co., Ltd. | 9 |
5 |
| Panasonic Intellectual Property Management Co., Ltd. | 33911 |
4 |
| Konica Minolta, Inc. | 9116 |
4 |
| Fuji Electric Co., Ltd. | 5469 |
4 |
| Overcast Innovations LLC | 30 |
4 |
| Kanary Alert Systems, LLC | 5 |
4 |
| Green Grid Inc. | 19 |
3 |
| Gas Activated Systems | 5 |
3 |
| Ecotec IP Holdings, LLC | 4 |
3 |
| Kidde Fire Protection LLC | 437 |
3 |
| Weatherford Technology Holdings, LLC | 2154 |
2 |
| Applied Nanotech, Inc. | 16 |
2 |
| Kidde Technologies, Inc. | 299 |
2 |
| Other owners | 109 |