Patent holdings for IPC class H01L 21/205

Total number of patents in this class: 3956

10-year publication summary

195
170
141
155
111
108
130
111
100
3
2017 2018 2019 2020 2021 2022 2023 2024 2025 2026

Principal owners for this class

Owner
All patents
This class
Applied Materials, Inc.
19391
552
Tokyo Electron Limited
13207
347
Sumitomo Electric Industries, Ltd.
15848
189
Shin-Etsu Handotai Co., Ltd.
1295
147
Sharp Kabushiki Kaisha
18590
99
Sumitomo Chemical Company, Limited
9106
77
Sumco Corporation
1119
76
NGK Insulators, Ltd.
5161
60
Kokusai Electric Corporation
2113
59
Showa Denko K.K.
2149
56
Lam Research Corporation
5394
55
Kyocera Corporation
14108
49
Mitsubishi Electric Corporation
47131
46
Panasonic Corporation
19924
45
Eugene Technology Co., Ltd.
171
43
ULVAC, Inc.
1371
42
Hitachi Kokusai Electric Inc.
860
37
Mitsubishi Chemical Corporation
4625
35
Shin-Etsu Chemical Co., Ltd.
5823
31
National Institute of Advanced Industrial Science and Technology
3801
30
Other owners 1881