- All sections
- C - Chemistry; metallurgy
- C25D - Processes for the electrolytic or electrophoretic production of coatings; electroforming; joining workpieces by electrolysis; apparatus therefor
- C25D 13/20 - Pretreatment
Patent holdings for IPC class C25D 13/20
Total number of patents in this class: 205
10-year publication summary
25
|
21
|
21
|
17
|
14
|
13
|
14
|
14
|
6
|
2
|
2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
Owner |
All patents
|
This class
|
---|---|---|
PPG Industries Ohio, Inc. | 3430 |
27 |
Chemetall GmbH | 382 |
16 |
Henkel AG & Co. KGaA | 10129 |
12 |
Kansai Paint Co., Ltd. | 659 |
11 |
Nippon Paint Co., Ltd. | 105 |
9 |
Nihon Parkerizing Co., Ltd. | 274 |
7 |
Centre National de La Recherche Scientifique | 9632 |
5 |
Lawrence Livermore National Security, LLC | 1834 |
5 |
Hewlett-Packard Development Company, L.P. | 28538 |
4 |
Safran Aircraft Engines | 5739 |
4 |
Audi AG | 7153 |
3 |
BASF Coatings GmbH | 1128 |
3 |
Institut National Polytechnique de Toulouse | 199 |
3 |
Universite Paul Sabatier Toulouse III | 473 |
3 |
Samsung Electronics Co., Ltd. | 131630 |
2 |
Honda Motor Co., Ltd. | 24537 |
2 |
The Sherwin-Williams Company | 553 |
2 |
GM Global Technology Operations LLC | 13620 |
2 |
Hyundai Motor Company | 19021 |
2 |
Carrier Corporation | 4759 |
2 |
Other owners | 81 |