Patent holdings for IPC class B24B 49/02

Total number of patents in this class: 180

10-year publication summary

8
9
12
16
14
10
19
20
9
18
2016 2017 2018 2019 2020 2021 2022 2023 2024 2025

Principal owners for this class

Owner
All patents
This class
Applied Materials, Inc.
19031
23
Ebara Corporation
2205
15
Tokyo Electron Limited
13013
11
Disco Corporation
1885
6
NSK Ltd.
2802
5
Sumco Corporation
1115
5
Samsung Electronics Co., Ltd.
148173
4
Erwin Junker Grinding Technology A.S.
24
4
SK Siltron Co., Ltd.
165
4
The Hillman Group, Inc.
396
3
Shin-Etsu Handotai Co., Ltd.
1292
3
Tokyo Seimitsu Co., Ltd.
375
3
Skatescribe Corporation
8
3
Hitachi, Ltd.
15612
2
Taiwan Semiconductor Manufacturing Company, Ltd.
44282
2
NTN Corporation
4978
2
Amatsuji Steel Ball Mfg. Co., Ltd.
4
2
BARON INVESTMENTS, LLC, DBA Baron Education
34
2
Essilor International (compagnie Generale D'optique)
2999
2
Fives Landis Corp.
32
2
Other owners 77