- All sections
- E - Fixed constructions
- E04C - Structural elements; building materials
- E04C 2/26 - Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by specified materials composed of materials covered by two or more of groups , , , or of materials covered by one of these groups with a material not specified in one of these groups
Patent holdings for IPC class E04C 2/26
Total number of patents in this class: 398
10-year publication summary
|
31
|
42
|
50
|
36
|
41
|
50
|
26
|
11
|
24
|
7
|
| 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Georgia-Pacific Gypsum LLC | 204 |
26 |
| United States Gypsum Company | 1019 |
15 |
| LG Hausys, Ltd. | 839 |
13 |
| Yoshino Gypsum Co., Ltd. | 224 |
13 |
| Armstrong World Industries, Inc. | 347 |
12 |
| CertainTeed Gypsum, Inc. | 180 |
8 |
| Mitek Holdings, Inc. | 250 |
6 |
| James Hardie Technology Limited | 462 |
5 |
| Valinge Photocatalytic AB | 25 |
5 |
| Conductive Composites Company IP, LLC | 23 |
4 |
| Louisiana-Pacific Corporation | 203 |
4 |
| AFI Licensing LLC | 204 |
3 |
| EPI 04, Inc. | 16 |
3 |
| Johns Manville | 980 |
3 |
| Litestone Holdings Pty Limited | 5 |
3 |
| Saint-Gobain Placo SAS | 139 |
3 |
| University of Canterbury | 29 |
3 |
| USG Interiors, LLC | 324 |
3 |
| Valinge Innovation AB | 915 |
3 |
| Wood Innovations Ltd. | 11 |
3 |
| Other owners | 260 |