Français Register Login

  • All sections
  • C - Chemistrymetallurgy
  • C23C - Coating metallic materialcoating material with metallic materialsurface treatment of metallic material by diffusion into the surface, by chemical conversion or substitutioncoating by vacuum evaporation, by sputtering, by ion implantation or by chemical vapour deposition, in general
  • C23C 2/02 - Pretreatment of the material to be coated, e.g. for coating on selected surface areas

Patent holdings for IPC class C23C 2/02

Total number of patents in this class: 1354

10-year publication summary

113
96
108
133
93
83
104
88
106
61
2016 2017 2018 2019 2020 2021 2022 2023 2024 2025

Principal owners for this class

Owner
All patents
This class
JFE Steel Corporation
6806
319
Nippon Steel Corporation
6195
200
ArcelorMittal
2254
184
POSCO Co., Ltd.
1558
107
POSCO
2188
44
ThyssenKrupp Steel Europe AG
952
44
Nippon Steel & Sumitomo Metal Corporation
1988
39
Fontaine Holdings NV
59
25
Kabushiki Kaisha Kobe Seiko Sho (Kobe Steel, Ltd.)
2876
21
Voestalpine Stahl GmbH
354
21
Hyundai Steel Company
411
16
Baoshan Iron & Steel Co., Ltd.
960
15
ArcelorMittal Investigacion y Desarrollo SL
209
14
Tata Steel Ijmuiden B.V.
305
14
ThyssenKrupp AG
3273
14
Salzgitter Flachstahl GmbH
158
12
ArcelorMittal France
86
10
BlueScope Steel Limited
212
10
Kobe Steel, Ltd.
870
9
Tata Steel Nederland Technology BV
151
7
Other owners 229

  • ipowner home
  • ipqwery home
  • contact us
  • privacy policy
  • terms and conditions
© 2025 IPQwery All rights reserved