- All sections
- C - Chemistrymetallurgy
- C09K - Materials for applications not otherwise provided forapplications 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: 622
10-year publication summary
|
31
|
61
|
50
|
59
|
47
|
36
|
60
|
46
|
39
|
8
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Martinswerk GmbH | 42 |
18 |
| Sekisui Chemical Co., Ltd. | 3347 |
17 |
| 3m Innovative Properties Company | 17860 |
13 |
| Pilkington Group Limited | 770 |
11 |
| Unifrax I LLC | 242 |
8 |
| Sumitomo Electric Industries, Ltd. | 15191 |
7 |
| Sumitomo Wiring Systems, Ltd. | 10149 |
7 |
| AGC Flat Glass Europe SA | 67 |
7 |
| Adeka Corporation | 1357 |
7 |
| Aspen Aerogels, Inc. | 248 |
7 |
| AutoNetworks Technologies, Ltd. | 6438 |
7 |
| Konoshima Chemical Co., Ltd. | 57 |
7 |
| Mighty Fire Breaker LLC | 65 |
7 |
| BASF SE | 20570 |
6 |
| AGC Glass Europe | 1105 |
6 |
| Hilti Aktiengesellschaft | 3417 |
5 |
| LS Cable & System Ltd. | 367 |
5 |
| S.A. Lhoist Recherche et Developpement | 170 |
5 |
| Tremco illbruck Limited | 8 |
5 |
| Albemarle Corporation | 504 |
4 |
| Other owners | 463 |