- All sections
- C - Chemistrymetallurgy
- C04B - Limemagnesiaslagcementscompositions thereof, e.g. mortars, concrete or like building materialsartificial stoneceramicsrefractoriestreatment of natural stone
- C04B 7/44 - BurningMelting
Patent holdings for IPC class C04B 7/44
Total number of patents in this class: 397
10-year publication summary
|
23
|
13
|
18
|
24
|
44
|
25
|
34
|
38
|
42
|
29
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Taiheiyo Cement Corporation | 243 |
22 |
| Terra CO2 Technology Holdings, Inc. | 38 |
21 |
| Holcim Technology Ltd. | 485 |
19 |
| Mitsubishi Materials Corporation | 2472 |
18 |
| KHD Humboldt Wedag GmbH | 192 |
15 |
| thyssenkrupp Polysius GmbH | 165 |
14 |
| ThyssenKrupp AG | 3409 |
13 |
| Taiheiyo Engineering Corporation | 35 |
13 |
| Sumitomo Osaka Cement Co., Ltd. | 894 |
12 |
| FLSmidth A/S | 789 |
12 |
| Tokuyama Corporation | 1477 |
9 |
| ThyssenKrupp Industrial Solutions AG | 630 |
8 |
| King Fahd University of Petroleum and Minerals | 1572 |
7 |
| Sudbayerisches Portland-zementwerk Gebr. Wiesbock & Co. GmbH | 16 |
6 |
| Mitsubishi Ube Cement Corporation | 60 |
6 |
| Amrize Technology Switzerland LLC | 717 |
5 |
| Fuller Technologies Denmark A/S | 107 |
5 |
| Calix Ltd | 89 |
4 |
| Vicat | 102 |
4 |
| Kawasaki Jukogyo Kabushiki Kaisha (trading as Kawasaki Heavy Industries, Ltd.) | 3259 |
4 |
| Other owners | 180 |