- 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: 409
10-year publication summary
|
42
|
50
|
36
|
41
|
51
|
26
|
14
|
25
|
22
|
0
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Georgia-Pacific Gypsum LLC | 210 |
26 |
| United States Gypsum Company | 999 |
15 |
| LG Hausys, Ltd. | 828 |
13 |
| Armstrong World Industries, Inc. | 350 |
12 |
| Yoshino Gypsum Co., Ltd. | 238 |
12 |
| CertainTeed Gypsum, Inc. | 200 |
8 |
| Mitek Holdings, Inc. | 250 |
7 |
| James Hardie Technology Limited | 465 |
5 |
| Louisiana-Pacific Corporation | 225 |
5 |
| Valinge Photocatalytic AB | 25 |
5 |
| Conductive Composites Company IP, LLC | 22 |
4 |
| AFI Licensing LLC | 211 |
3 |
| EPI 04, Inc. | 16 |
3 |
| Johns Manville | 967 |
3 |
| Knauf Gips KG | 563 |
3 |
| Litestone Holdings Pty Limited | 5 |
3 |
| Saint-Gobain Placo SAS | 141 |
3 |
| University of Canterbury | 28 |
3 |
| USG Interiors, LLC | 315 |
3 |
| Valinge Innovation AB | 971 |
3 |
| Other owners | 270 |