Patent holdings for IPC class G04R 20/12

Total number of patents in this class: 7

10-year publication summary

1
1
0
0
1
0
0
0
0
0
2017 2018 2019 2020 2021 2022 2023 2024 2025 2026

Principal owners for this class

Owner
All patents
This class
Casio Computer Co., Ltd.
3486
4
Seiko Epson Corporation
20013
2
Raytheon BBN Technologies Corp.
101
1
Other owners 0