Patent holdings for IPC class G04R 20/06

Total number of patents in this class: 49

10-year publication summary

12
7
1
1
0
2
1
2
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.
3516
17
Seiko Epson Corporation
20446
6
citizen Holdings Co., Ltd.
260
5
citizen Watch Co., Ltd.
1092
5
NEC Corporation
37395
2
ETA SA Manufacture Horlogere Suisse
704
2
General Motors LLC
1714
1
Nokia Corporation
4673
1
Huawei Technologies Co., Ltd.
124837
1
Microsoft Technology Licensing, LLC
54586
1
Nippon Telegraph and Telephone Corporation
15913
1
CACI, Inc. - Federal
77
1
San Diego Gas & Electric Company
64
1
Schweitzer Engineering Laboratories, Inc.
908
1
ST-Ericsson SA
530
1
Resiltech s.r.l.
2
1
Black Sesame Technologies Inc.
142
1
Beijing CHJ Information Technology Co., Ltd
187
1
Other owners 0