Patent holdings for IPC class H01J 37/34

Total number of patents in this class: 2154

10-year publication summary

258
249
229
239
185
229
180
209
160
36
2015 2016 2017 2018 2019 2020 2021 2022 2023 2024

Principal owners for this class

Owner
All patents
This class
Applied Materials, Inc.
16587
392
JX Nippon Mining & Metals Corporation
1576
90
Oerlikon Surface Solutions AG, Pfaffikon
556
70
Taiwan Semiconductor Manufacturing Company, Ltd.
36809
68
Tokyo Electron Limited
11599
65
Canon Anelva Corporation
676
61
Evatec AG
152
38
ULVAC, Inc.
1448
35
Dyson Technology Limited
3124
34
View, Inc.
792
27
Beijing Naura Microelectronics Equipment Co., Ltd.
430
25
Samsung Display Co., Ltd.
30585
23
PLANSEE SE
233
23
Honeywell International Inc.
13799
21
Cardinal CG Company
226
21
Soleras Advanced Coatings BVBA
33
21
Mitsubishi Materials Corporation
2378
19
Tanaka Kikinzoku Kogyo K.K.
589
15
TRUMPF Huettinger Sp. z o.o.
26
15
IonQuest Corp., FORMERLY IonQuest LLC
16
15
Other owners 1076