- All sections
- G - Physics
- G08B - Signalling or calling systems; order telegraphs; alarm 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: 476
10-year publication summary
|
48
|
48
|
61
|
72
|
76
|
56
|
55
|
59
|
48
|
10
|
| 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Google LLC | 38759 |
41 |
| Honeywell International Inc. | 13799 |
21 |
| Soter Technologies LLC | 48 |
18 |
| 3m Innovative Properties Company | 18406 |
11 |
| Konica Minolta, Inc. | 8349 |
8 |
| International Business Machines Corporation | 60644 |
7 |
| Accenture Global Services Limited | 1802 |
7 |
| Blackline Safety Corp. | 19 |
7 |
| Carrier Corporation | 4759 |
6 |
| Industrial Scientific Corporation | 86 |
6 |
| Microjet Technology Co., Ltd. | 344 |
6 |
| Venturi, LLC | 12 |
5 |
| Pivot Health Technologies Inc. | 35 |
5 |
| Elemental Machines, Inc. | 69 |
4 |
| Intwine Connect, LLC | 15 |
4 |
| Strata Products Worldwide, LLC | 61 |
4 |
| Zeptive Inc., FORMERLY Zeptosense, Inc. | 18 |
4 |
| AT&T Intellectual Property I, L.P. | 9886 |
3 |
| Koninklijke Philips N.V. | 22975 |
3 |
| Amazon Technologies, Inc. | 24422 |
3 |
| Other owners | 303 |