- 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 14/18 - Perlite
Patent holdings for IPC class C04B 14/18
Total number of patents in this class: 161
10-year publication summary
|
5
|
13
|
9
|
24
|
20
|
11
|
12
|
18
|
17
|
0
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| United States Gypsum Company | 1002 |
12 |
| Halliburton Energy Services, Inc. | 20438 |
7 |
| Mitek Holdings, Inc. | 249 |
7 |
| Nichiha Corporation | 180 |
7 |
| Etex Services NV | 53 |
5 |
| Imertech SAS | 227 |
5 |
| Georgia-Pacific Gypsum LLC | 213 |
4 |
| Geopolymer Solutions, LLC | 16 |
4 |
| Knauf Gips KG | 563 |
4 |
| Omya International AG | 810 |
4 |
| USG Interiors, LLC | 315 |
4 |
| Whirlpool Corporation | 4333 |
3 |
| Arclin USA, LLC. | 79 |
3 |
| Eternit N.V. | 31 |
3 |
| James Hardie Technology Limited | 461 |
3 |
| Mgo Systems Ltd. | 11 |
3 |
| Binder + Co AG | 46 |
2 |
| The Intellectual Gorilla GmbH | 29 |
2 |
| Jet Products, LLC | 4 |
2 |
| Kyungdong One Corporation | 10 |
2 |
| Other owners | 75 |