- 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: 307
10-year publication summary
|
34
|
38
|
47
|
48
|
39
|
33
|
43
|
40
|
27
|
10
|
| 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Endura Products, LLC | 210 |
25 |
| Masonite Corporation | 461 |
15 |
| Sorrel Quarters, LLC | 51 |
11 |
| Steelcase Inc. | 1361 |
10 |
| Anthony, Inc. | 130 |
7 |
| AADG, Inc. | 69 |
6 |
| Assa Abloy Entrance Systems AB | 451 |
5 |
| Plastpro 2000, Inc. | 29 |
5 |
| William-MacRae and Company | 15 |
5 |
| American Mine Door Co. | 4 |
4 |
| JELD-WEN, inc. | 294 |
4 |
| Associated Materials, LLC, DBA Alside | 109 |
3 |
| DIRTT Environmental Solutions, Ltd. | 329 |
3 |
| Dynamic Closures Corporation | 26 |
3 |
| Foshan Ideal Co., Ltd | 44 |
3 |
| Hussmann Corporation | 217 |
3 |
| Pella Corporation | 205 |
3 |
| Studco Building Systems US, LLC | 36 |
3 |
| Sugatsune Kogyo Co., Ltd. | 284 |
3 |
| Frame & Mullions LLC | 4 |
3 |
| Other owners | 183 |