- All sections
- C - Chemistry; metallurgy
- C21D - Modifying the physical structure of ferrous metals; general devices for heat treatment of ferrous or non-ferrous metals or alloys; making metal malleable, e.g. by decarburisation or tempering
- C21D 1/58 - Oils
Patent holdings for IPC class C21D 1/58
Total number of patents in this class: 88
10-year publication summary
2
|
19
|
16
|
8
|
12
|
5
|
9
|
7
|
5
|
2
|
2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
Owner |
All patents
|
This class
|
---|---|---|
Idemitsu Kosan Co., Ltd. | 3995 |
19 |
Caterpillar Inc. | 8877 |
3 |
Nanjing Kerun Industrial Technology Co., Ltd | 13 |
3 |
Ford Motor Company | 2817 |
2 |
GM Global Technology Operations LLC | 13620 |
2 |
Baoshan Iron & Steel Co., Ltd. | 832 |
2 |
Furukawa Rock Drill Co., Ltd. | 35 |
2 |
Nanjing Kerun Industrial Media Co., Ltd | 9 |
2 |
CRS Holdings, LLC | 156 |
2 |
Nanjing Kerun New Material Technology Co., Ltd | 7 |
2 |
Honda Motor Co., Ltd. | 24537 |
1 |
Shell Internationale Research Maatschappij B.V. | 3792 |
1 |
Hyundai Motor Company | 19021 |
1 |
California Institute of Technology | 3884 |
1 |
Aisin AW Co., Ltd. | 2430 |
1 |
Schaeffler Technologies AG & Co. KG | 8880 |
1 |
Northwestern University | 3112 |
1 |
Abbott Ball Company | 5 |
1 |
Aktiebolaget SKF | 2700 |
1 |
Applied Nano Surfaces Sweden AB | 7 |
1 |
Other owners | 39 |