- All sections
- G - Physics
- G08B - Signalling or calling systemsorder telegraphsalarm systems
- G08B 21/12 - Alarms for ensuring the safety of persons responsive to undesired emission of substances, e.g. pollution alarms
Patent holdings for IPC class G08B 21/12
Total number of patents in this class: 558
10-year publication summary
|
61
|
72
|
76
|
56
|
57
|
63
|
53
|
46
|
44
|
22
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Google LLC | 44674 |
38 |
| Honeywell International Inc. | 12770 |
23 |
| 3m Innovative Properties Company | 17459 |
14 |
| Soter Technologies LLC | 38 |
14 |
| Industrial Scientific Corporation | 113 |
10 |
| Konica Minolta, Inc. | 9159 |
8 |
| International Business Machines Corporation | 62754 |
7 |
| Microjet Technology Co., Ltd. | 461 |
7 |
| Blackline Safety Corp. | 25 |
7 |
| Accenture Global Services Limited | 1300 |
6 |
| Elemental Machines, Inc. | 85 |
6 |
| Intwine Connect, LLC | 19 |
6 |
| State Farm Mutual Automobile Insurance Company | 3452 |
6 |
| Chengdu Qinchuan IoT Technology Co., Ltd. | 555 |
5 |
| Zeptive Inc., FORMERLY Zeptosense, Inc. | 20 |
5 |
| Pivot Health Technologies Inc. | 35 |
5 |
| Schlumberger Canada Limited | 7627 |
4 |
| Buildingreports.com, Inc. | 22 |
4 |
| Rebellion Photonics, Inc. | 99 |
4 |
| Saudi Arabian Oil Company | 14329 |
4 |
| Other owners | 375 |