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.
19005
23
Ebara Corporation
2201
15
Tokyo Electron Limited
13008
11
Disco Corporation
1876
6
NSK Ltd.
2799
5
Sumco Corporation
1114
5
Samsung Electronics Co., Ltd.
148077
4
Erwin Junker Grinding Technology A.S.
24
4
SK Siltron Co., Ltd.
165
4
The Hillman Group, Inc.
397
3
Shin-Etsu Handotai Co., Ltd.
1288
3
Tokyo Seimitsu Co., Ltd.
375
3
Skatescribe Corporation
8
3
Hitachi, Ltd.
15605
2
Taiwan Semiconductor Manufacturing Company, Ltd.
44095
2
NTN Corporation
4979
2
Amatsuji Steel Ball Mfg. Co., Ltd.
4
2
BARON INVESTMENTS, LLC, DBA Baron Education
34
2
Essilor International (compagnie Generale D'optique)
2998
2
Fives Landis Corp.
32
2
Other owners 77