- All sections
- E - Fixed constructions
- E04B - General building constructions; walls, e.g. partitions; roofs; floors; ceilings; insulation or other protection of buildings
- E04B 1/41 - Connecting devices specially adapted for embedding in concrete or masonry
Patent holdings for IPC class E04B 1/41
Total number of patents in this class: 1237
10-year publication summary
|
165
|
183
|
201
|
184
|
167
|
162
|
129
|
106
|
56
|
1
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Hohmann & Barnard, Incorporated | 149 |
62 |
| Cetres Holdings, LLC | 100 |
60 |
| Hilti Aktiengesellschaft | 3363 |
56 |
| Simpson Strong-Tie Company, Inc. | 680 |
28 |
| Illinois Tool Works Inc. | 11379 |
24 |
| Advanced Architectural Products, LLC | 76 |
14 |
| Peikko Group Oy | 158 |
14 |
| fischerwerke GmbH & Co. KG | 378 |
13 |
| Gripple Limited | 234 |
13 |
| Columbia Insurance Company | 1523 |
12 |
| Black & Decker, Inc. | 2405 |
12 |
| FERO Corporation | 45 |
10 |
| Meadow Burke, LLC | 36 |
10 |
| Wilhelm Modersohn GmbH & Co. KG | 17 |
10 |
| Espinosa, Thomas M. | 14 |
9 |
| Mitek Holdings, Inc. | 250 |
9 |
| Nucor Corporation | 421 |
9 |
| Acculign Holdings, Inc. | 12 |
8 |
| FS Technical Corporation | 14 |
8 |
| Ludwig Hettich Holding GmbH & Co. KG | 30 |
8 |
| Other owners | 848 |