- All sections
- C - Chemistry; metallurgy
- C04B - Lime; magnesia; slag; cements; compositions thereof, e.g. mortars, concrete or like building materials; artificial stone; ceramics; refractories; treatment of natural stone
- C04B 18/04 - Waste materials; Refuse
Patent holdings for IPC class C04B 18/04
Total number of patents in this class: 250
10-year publication summary
21
|
16
|
20
|
19
|
17
|
21
|
21
|
26
|
21
|
13
|
2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
Owner |
All patents
|
This class
|
---|---|---|
Halliburton Energy Services, Inc. | 20165 |
5 |
Fluorchemie GmbH Frankfurt | 16 |
5 |
Black Asbestos Ltd | 5 |
4 |
The Regents of the University of California | 18943 |
3 |
Ash Improvement Technology Inc. | 7 |
3 |
En-Tech Corporation | 13 |
3 |
Holcim Technology Ltd. | 868 |
3 |
Carbon8 Systems Limited | 10 |
3 |
Ash Management Engineering, Inc. | 4 |
3 |
Glass Processing Solutions, LLC d/b/a Sioneer | 5 |
3 |
University of Florida Research Foundation, Inc. | 3883 |
2 |
Arizona Board of Regents on behalf of Arizona State University | 2226 |
2 |
Consejo Superior de Investigaciones Cientificas (csic) | 1254 |
2 |
Council of Scientific and Industrial Research | 670 |
2 |
Drexel University | 951 |
2 |
Global Ecoprocess Services Oy | 10 |
2 |
Good Morning Enterprises Inc. | 3 |
2 |
Graymont Western Canada Inc. | 32 |
2 |
Hindalco Industries Ltd. | 16 |
2 |
Huris Co., Ltd. | 3 |
2 |
Other owners | 195 |