- All sections
- E - Fixed constructions
- E06B - Fixed or movable closures for openings in buildings, vehicles, fences, or like enclosures, in general, e.g. doors, windows, blinds, gates
- E06B 1/52 - Frames specially adapted for doors
Patent holdings for IPC class E06B 1/52
Total number of patents in this class: 350
10-year publication summary
|
47
|
48
|
39
|
35
|
44
|
46
|
29
|
33
|
23
|
17
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Endura Products, LLC | 219 |
31 |
| Masonite Corporation | 691 |
19 |
| Sorrel Quarters, LLC | 53 |
11 |
| Steelcase Inc. | 1285 |
10 |
| AADG, Inc. | 77 |
9 |
| Anthony, Inc. | 154 |
7 |
| William-MacRae and Company | 14 |
6 |
| Assa Abloy Entrance Systems AB | 640 |
5 |
| Kawneer Company, Inc. | 134 |
5 |
| Plastpro 2000, Inc. | 32 |
5 |
| Cornellcookson, LLC | 206 |
5 |
| American Mine Door Co. | 4 |
4 |
| Hussmann Corporation | 231 |
4 |
| JELD-WEN, inc. | 277 |
4 |
| Moulure Alexandria Moulding Inc. | 13 |
4 |
| Unique Home Designs, Inc. | 14 |
4 |
| Larson Manufacturing Company of South Dakota, LLC | 66 |
4 |
| Andersen Corporation | 288 |
3 |
| Associated Materials, LLC, DBA Alside | 101 |
3 |
| DIRTT Environmental Solutions, Ltd. | 309 |
3 |
| Other owners | 204 |