- 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 41/45 - Coating or impregnating
Patent holdings for IPC class C04B 41/45
Total number of patents in this class: 925
10-year publication summary
|
47
|
67
|
56
|
73
|
88
|
103
|
105
|
88
|
102
|
42
|
| 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Rtx Corporation | 8674 |
40 |
| Corning Incorporated | 9932 |
37 |
| Rolls-Royce Corporation | 1686 |
29 |
| General Electric Company | 18133 |
22 |
| Goodrich Corporation | 2081 |
19 |
| Rolls-Royce High Temperature Composites, Inc. | 129 |
19 |
| Safran Ceramics | 366 |
17 |
| Centre National de La Recherche Scientifique | 9632 |
15 |
| Applied Materials, Inc. | 16587 |
13 |
| Honeywell International Inc. | 13799 |
9 |
| James R. Glidewell Dental Ceramics, Inc. | 205 |
9 |
| NGK Insulators, Ltd. | 4589 |
8 |
| Safran Aircraft Engines | 5739 |
8 |
| United States Gypsum Company | 1019 |
8 |
| TDK Electronics AG | 863 |
8 |
| 3m Innovative Properties Company | 18406 |
7 |
| Siemens AG | 24990 |
7 |
| Construction Research & Technology GmbH | 640 |
7 |
| SAFRAN S.A. | 518 |
6 |
| Rolls-Royce PLC | 2944 |
6 |
| Other owners | 631 |