- 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: 528
10-year publication summary
|
48
|
61
|
72
|
76
|
56
|
56
|
61
|
53
|
43
|
28
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Google LLC | 42261 |
38 |
| Honeywell International Inc. | 13553 |
23 |
| Soter Technologies LLC | 46 |
17 |
| 3m Innovative Properties Company | 17819 |
14 |
| Konica Minolta, Inc. | 8742 |
8 |
| Accenture Global Services Limited | 1534 |
8 |
| International Business Machines Corporation | 61257 |
7 |
| Microjet Technology Co., Ltd. | 447 |
7 |
| Carrier Corporation | 4344 |
6 |
| Elemental Machines, Inc. | 77 |
6 |
| Industrial Scientific Corporation | 86 |
6 |
| Intwine Connect, LLC | 19 |
6 |
| Blackline Safety Corp. | 18 |
6 |
| Pivot Health Technologies Inc. | 39 |
6 |
| Venturi, LLC | 12 |
5 |
| Zeptive Inc., FORMERLY Zeptosense, Inc. | 20 |
5 |
| Schlumberger Canada Limited | 7296 |
4 |
| Strata Products Worldwide, LLC | 69 |
4 |
| Chengdu Qinchuan IoT Technology Co., Ltd. | 447 |
4 |
| Apple Inc. | 54937 |
3 |
| Other owners | 345 |