- All sections
- C - Chemistrymetallurgy
- C04B - Limemagnesiaslagcementscompositions thereof, e.g. mortars, concrete or like building materialsartificial stoneceramicsrefractoriestreatment of natural stone
- C04B 18/22 - Rubber
Patent holdings for IPC class C04B 18/22
Total number of patents in this class: 68
10-year publication summary
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4
|
8
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10
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11
|
9
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9
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5
|
6
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11
|
1
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| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Schlumberger Technology Corporation | 10487 |
6 |
| The Shredded Tire Inc. | 7 |
5 |
| Asphalt Sciences LLC, DBA Asphalt Sciences LLC | 19 |
4 |
| Guangdong University of Technology | 547 |
3 |
| Saudi Arabian Oil Company | 12609 |
3 |
| BASF SE | 20570 |
2 |
| Asphalt Plus, LLC | 5 |
2 |
| Herbert Malarkey Roofing Company | 47 |
2 |
| Shenzhen University | 1618 |
2 |
| University of Michigan | 33 |
2 |
| Chun Well Industry Co., Ltd. | 2 |
2 |
| Shin Chuang Technology Co. Ltd. | 9 |
2 |
| Schlumberger Canada Limited | 7134 |
1 |
| Schlumberger Technology B.v. | 5113 |
1 |
| Halliburton Energy Services, Inc. | 20618 |
1 |
| The Regents of the University of Michigan | 4614 |
1 |
| Georgia Tech Research Corporation | 2666 |
1 |
| University of South Florida | 1814 |
1 |
| Aramco Services Company | 3852 |
1 |
| Construction Research & Technology GmbH | 652 |
1 |
| Other owners | 25 |