Patent holdings for IPC class C03C 3/17

Total number of patents in this class: 155

10-year publication summary

11
11
10
12
8
11
12
15
3
6
2016 2017 2018 2019 2020 2021 2022 2023 2024 2025

Principal owners for this class

Owner
All patents
This class
Nippon Electric Glass Co., Ltd.
2455
23
Agc, Inc.
4827
20
Hoya Corporation
2746
16
Corning Incorporated
10257
11
Ohara Inc.
217
11
SCHOTT AG
1712
7
Nikon Corporation
7162
6
Asahi Glass Company, Limited
2792
6
CDGM Glass Co., Ltd
137
5
National Institute of Advanced Industrial Science and Technology
3805
4
SCHOTT Corporation
72
4
LG Electronics Inc.
72962
3
Sumita Optical Glass, Inc.
43
3
Nanjing Tongli Crystal Materials Research Institute Co., Ltd
16
3
Alps Electric Co., Ltd.
810
2
Central Glass Company, Limited
1263
2
KOA Glass Co., Ltd.
37
2
Kongju National University Industry-University Cooperation Foundation
96
2
Panasonic Corporation
20124
1
Konica Minolta, Inc.
8722
1
Other owners 23