- All sections
- G - Physics
- G04C - Electromechanical clocks or watches
- G04C 21/00 - Producing acoustic time signals by electrical means
Patent holdings for IPC class G04C 21/00
Total number of patents in this class: 12
10-year publication summary
3
|
0
|
3
|
0
|
2
|
0
|
0
|
0
|
0
|
0
|
2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
Owner |
All patents
|
This class
|
---|---|---|
Samsung Electronics Co., Ltd. | 131630 |
3 |
Apple Inc. | 50209 |
1 |
Koninklijke Philips N.V. | 22975 |
1 |
RPX Corporation | 1571 |
1 |
Glashütter Uhrenbetrieb GmbH | 79 |
1 |
Harry Winston SA | 817 |
1 |
The Swatch Group Research and Development Ltd | 778 |
1 |
Timex Group B.V. | 24 |
1 |
Senver Holdings, Pty Ltd. | 5 |
1 |
Salatandre, Edgar D. | 1 |
1 |
Other owners | 0 |