Patent holdings for IPC class G01N 21/55

Total number of patents in this class: 2147

10-year publication summary

153
141
153
119
106
111
114
75
92
9
2016 2017 2018 2019 2020 2021 2022 2023 2024 2025

Principal owners for this class

Owner
All patents
This class
Koninklijke Philips Electronics N.V.
10767
49
KLA-Tencor Corporation
2550
44
Applied Materials, Inc.
17808
30
Canon Inc.
38296
29
Samsung Electronics Co., Ltd.
139551
24
GE Healthcare Bio-Sciences AB
554
22
3m Innovative Properties Company
17976
20
ASML Netherlands B.V.
7190
20
Onto Innovation Inc.
354
16
The Regents of the University of California
19572
15
Ricoh Company, Ltd.
13230
15
Koninklijke Philips N.V.
24106
15
Corning Incorporated
10145
15
Centre National de La Recherche Scientifique
10140
14
Robert Bosch GmbH
41843
13
KLA Corporation
1406
12
The Boeing Company
19922
11
Taiwan Semiconductor Manufacturing Company, Ltd.
40717
11
Carl Zeiss SMT GmbH
2831
11
Apple Inc.
52932
10
Other owners 1751