Patent holdings for IPC class C01B 33/08

Total number of patents in this class: 60

10-year publication summary

2
2
1
0
1
4
1
2
5
2
2017 2018 2019 2020 2021 2022 2023 2024 2025 2026

Principal owners for this class

Owner
All patents
This class
Evonik Operations GmbH
4443
4
Evonik Degussa GmbH
1343
3
Shin-Etsu Chemical Co., Ltd.
6157
3
Wacker Chemie AG
2124
3
Dow Silicones Corporation
2154
3
High-purity Silicon Corporation
73
3
Entegris, Inc.
2035
2
Hanwha Chemical Corporation
305
2
Mitsubishi Materials Corporation
2484
2
REC Silicon Inc
76
2
Tokuyama Corporation
1506
2
Corner Star Limited
94
2
LG Chem, Ltd.
17986
1
Merck Patent GmbH
5751
1
Hyundai Motor Company
25119
1
NGK Insulators, Ltd.
5168
1
Toyota Industries Corporation
1238
1
Dow Corning Corporation
867
1
Arise Technologies Corporation
7
1
Case Western Reserve University
1911
1
Other owners 21