- All sections
- G - Physics
- G08B - Signalling or calling systemsorder telegraphsalarm systems
- G08B 25/04 - Alarm systems in which the location of the alarm condition is signalled to a central station, e.g. fire or police telegraphic systems characterised by the transmission medium using a single signalling line, e.g. in a closed loop
Patent holdings for IPC class G08B 25/04
Total number of patents in this class: 1035
10-year publication summary
|
65
|
113
|
96
|
137
|
93
|
83
|
65
|
67
|
61
|
44
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Konica Minolta, Inc. | 8807 |
127 |
| NEC Corporation | 36124 |
122 |
| Panasonic Intellectual Property Management Co., Ltd. | 32105 |
71 |
| Mitsubishi Electric Corporation | 46590 |
67 |
| Tyco Fire & Security GmbH | 3424 |
33 |
| Hitachi, Ltd. | 15599 |
18 |
| Sony Corporation | 30910 |
17 |
| Denso Corporation | 24562 |
16 |
| Omron Corporation | 7310 |
15 |
| Panasonic Corporation | 20030 |
13 |
| Kyocera Corporation | 13988 |
11 |
| Technomirai Co., Ltd. | 68 |
11 |
| Sharp Kabushiki Kaisha | 18694 |
11 |
| Nikon Corporation | 7298 |
10 |
| JVC Kenwood Corporation | 3053 |
10 |
| Honda Motor Co., Ltd. | 25780 |
8 |
| Nissan Motor Co., Ltd. | 12572 |
8 |
| A.i.viewlife Co.,Ltd. | 12 |
8 |
| Sumitomo Electric Industries, Ltd. | 15659 |
7 |
| Fujitsu Limited | 17684 |
7 |
| Other owners | 445 |