Patent holdings for IPC class H01L 21/205

Total number of patents in this class: 3918

10-year publication summary

195
170
141
155
111
107
130
111
100
35
2017 2018 2019 2020 2021 2022 2023 2024 2025 2026

Principal owners for this class

Owner
All patents
This class
Applied Materials, Inc.
20036
551
Tokyo Electron Limited
13523
342
Sumitomo Electric Industries, Ltd.
16091
191
Shin-Etsu Handotai Co., Ltd.
1298
152
Sharp Kabushiki Kaisha
18605
97
Sumitomo Chemical Company, Limited
9045
77
Sumco Corporation
1114
76
NGK Insulators, Ltd.
5199
61
Kokusai Electric Corporation
2191
61
Lam Research Corporation
5528
55
Showa Denko K.K.
2098
55
Kyocera Corporation
14242
50
Mitsubishi Electric Corporation
47602
46
Panasonic Corporation
19586
44
Eugene Technology Co., Ltd.
181
43
ULVAC, Inc.
1361
41
Mitsubishi Chemical Corporation
4676
33
Shin-Etsu Chemical Co., Ltd.
5948
30
National Institute of Advanced Industrial Science and Technology
3792
30
Dowa Electronics Materials Co., Ltd.
636
30
Other owners 1853