Patent holdings for IPC class G10F 1/20

Total number of patents in this class: 4

10-year publication summary

0
0
5
0
6
0
1
2
1
1
2015 2016 2017 2018 2019 2020 2021 2022 2023 2024

Principal owners for this class

Owner
All patents
This class
Sunland Information Technology Co., Ltd.
59
2
QRS Music Technologies, Inc.
21
1
Circle Instruments Ltd.
1
1
Other owners 0