- 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 41/85 - Coating or impregnating with inorganic materials
Patent holdings for IPC class C04B 41/85
Total number of patents in this class: 522
10-year publication summary
45
|
33
|
49
|
30
|
36
|
36
|
25
|
29
|
15
|
10
|
2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
Owner |
All patents
|
This class
|
---|---|---|
NGK Insulators, Ltd. | 4589 |
58 |
Ibiden Co., Ltd. | 1724 |
36 |
Corning Incorporated | 9932 |
20 |
General Electric Company | 18133 |
16 |
Rolls-Royce Corporation | 1686 |
15 |
Hitachi Metals, Ltd. | 2175 |
13 |
3m Innovative Properties Company | 18406 |
12 |
Rtx Corporation | 8674 |
11 |
Sumitomo Chemical Company, Limited | 8808 |
10 |
Safran Ceramics | 366 |
9 |
Solventum Intellectual Properties Company | 2681 |
9 |
Goodrich Corporation | 2081 |
7 |
Rolls-Royce High Temperature Composites, Inc. | 129 |
7 |
Group14 Technologies, Inc. | 73 |
6 |
Honeywell International Inc. | 13799 |
5 |
Rolex S.A. | 606 |
5 |
Centre National de La Recherche Scientifique | 9632 |
4 |
National Institute of Advanced Industrial Science and Technology | 3677 |
4 |
Hitachi Zosen Corporation | 609 |
4 |
Japan Fine Ceramics Center | 66 |
4 |
Other owners | 267 |