- All sections
- C - Chemistry; metallurgy
- C09K - Materials for applications not otherwise provided for; applications of materials not otherwise provided for
- C09K 21/02 - Inorganic materials
Patent holdings for IPC class C09K 21/02
Total number of patents in this class: 608
10-year publication summary
|
50
|
30
|
61
|
50
|
59
|
47
|
35
|
60
|
44
|
11
|
| 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Martinswerk GmbH | 43 |
18 |
| Sekisui Chemical Co., Ltd. | 3159 |
14 |
| 3m Innovative Properties Company | 18406 |
12 |
| Pilkington Group Limited | 748 |
11 |
| Unifrax I LLC | 239 |
8 |
| Sumitomo Electric Industries, Ltd. | 14131 |
7 |
| Sumitomo Wiring Systems, Ltd. | 9367 |
7 |
| AGC Flat Glass Europe SA | 67 |
7 |
| Adeka Corporation | 1333 |
7 |
| AutoNetworks Technologies, Ltd. | 5809 |
7 |
| BASF SE | 19740 |
6 |
| AGC Glass Europe | 1049 |
6 |
| Aspen Aerogels, Inc. | 217 |
6 |
| Konoshima Chemical Co., Ltd. | 54 |
6 |
| S.A. Lhoist Recherche et Developpement | 163 |
6 |
| Hilti Aktiengesellschaft | 3227 |
5 |
| Bromine Compounds Ltd. | 196 |
5 |
| Firespray International Limited | 6 |
5 |
| Fluorchemie GmbH Frankfurt | 16 |
5 |
| LS Cable & System Ltd. | 311 |
5 |
| Other owners | 455 |