- 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 111/20 - Resistance against chemical, physical or biological attack
Patent holdings for IPC class C04B 111/20
Total number of patents in this class: 261
10-year publication summary
|
25
|
17
|
27
|
32
|
32
|
18
|
26
|
16
|
14
|
2
|
| 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| CR Minerals Company, LLC | 22 |
12 |
| Construction Research & Technology GmbH | 640 |
9 |
| Halliburton Energy Services, Inc. | 20165 |
5 |
| NGK Insulators, Ltd. | 4589 |
5 |
| AM Technology Limited | 15 |
5 |
| Solidia Technologies, Inc. | 113 |
5 |
| The Regents of the University of California | 18943 |
4 |
| Sika Technology AG | 2650 |
4 |
| Wacker Chemie AG | 2091 |
4 |
| 3m Innovative Properties Company | 18406 |
3 |
| Corning Incorporated | 9932 |
3 |
| Dow Global Technologies LLC | 10147 |
3 |
| A.L.M. Holding Company | 82 |
3 |
| Chryso | 112 |
3 |
| Ergon Asphalt & Emulsions, Inc. | 108 |
3 |
| Harbin Engineering University | 101 |
3 |
| International Technology Center | 19 |
3 |
| Italcementi S.p.A. | 83 |
3 |
| Rutgers, The State University of New Jersey | 1776 |
3 |
| Yara International ASA | 753 |
3 |
| Other owners | 175 |