- 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 111/27 - Water resistance, i.e. waterproof or water-repellent materials
Patent holdings for IPC class C04B 111/27
Total number of patents in this class: 207
10-year publication summary
|
19
|
13
|
24
|
14
|
21
|
21
|
18
|
18
|
19
|
6
|
| 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| United States Gypsum Company | 1019 |
11 |
| BASF SE | 19740 |
9 |
| Georgia-Pacific Gypsum LLC | 204 |
8 |
| Wacker Chemie AG | 2091 |
8 |
| Henkel AG & Co. KGaA | 10129 |
6 |
| Sika Technology AG | 2650 |
6 |
| Knauf Gips KG | 534 |
5 |
| Dow Silicones Corporation | 1664 |
5 |
| Dow Global Technologies LLC | 10147 |
4 |
| BPB Limited | 49 |
4 |
| Evonik Operations GmbH | 3879 |
4 |
| Kohler Co. | 4165 |
3 |
| GCP Applied Technologies Inc. | 451 |
3 |
| Johns Manville | 980 |
3 |
| Shore Acres Enterprises Inc. | 26 |
3 |
| Etex Services NV | 50 |
3 |
| HeNan Polytechnic University | 81 |
3 |
| Corning Incorporated | 9932 |
2 |
| Purdue Research Foundation | 3277 |
2 |
| The Arizona Board of Regents on Behalf of the University of Arizona | 1906 |
2 |
| Other owners | 113 |