- All sections
- B - Performing operationstransporting
- B32B - Layered products, i.e. products built-up of strata of flat or non-flat, e.g. cellular or honeycomb, form
- B32B 15/18 - Layered products essentially comprising metal comprising iron or steel
Patent holdings for IPC class B32B 15/18
Total number of patents in this class: 1661
10-year publication summary
|
132
|
187
|
197
|
170
|
174
|
174
|
127
|
138
|
126
|
33
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Nippon Steel Corporation | 6166 |
136 |
| JFE Steel Corporation | 6767 |
89 |
| POSCO Co., Ltd. | 1395 |
75 |
| ThyssenKrupp Steel Europe AG | 950 |
28 |
| Corning Incorporated | 10240 |
25 |
| Baoshan Iron & Steel Co., Ltd. | 955 |
23 |
| Toyo Kohan Co., Ltd. | 415 |
22 |
| ArcelorMittal | 2227 |
21 |
| BASF SE | 20777 |
19 |
| Productive Research LLC | 33 |
18 |
| Kobe Steel, Ltd. | 870 |
16 |
| Nippon Steel & Sumitomo Metal Corporation | 1988 |
16 |
| ThyssenKrupp AG | 3266 |
14 |
| LG Electronics Inc. | 72473 |
13 |
| GM Global Technology Operations LLC | 14879 |
12 |
| Boe Technology Group Co., Ltd. | 40613 |
12 |
| POSCO | 2189 |
12 |
| 3m Innovative Properties Company | 17849 |
11 |
| Dai Nippon Printing Co., Ltd. | 4061 |
11 |
| Zephyros, Inc. | 653 |
10 |
| Other owners | 1078 |