- All sections
- E - Fixed constructions
- E04C - Structural elements; building materials
- E04C 3/04 - Joists; Girders, trusses, or truss-like structures, e.g. prefabricated; Lintels; Transoms of metal
Patent holdings for IPC class E04C 3/04
Total number of patents in this class: 619
10-year publication summary
|
77
|
89
|
78
|
95
|
102
|
85
|
53
|
54
|
41
|
10
|
| 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Cemco, LLC | 123 |
18 |
| Simpson Strong-Tie Company, Inc. | 583 |
11 |
| Eaton Intelligent Power Limited | 6113 |
11 |
| Knauf Gips KG | 534 |
8 |
| BlueScope Buildings North America, Inc. | 76 |
7 |
| The Boeing Company | 19843 |
6 |
| Nucor Corporation | 425 |
6 |
| Paul Kristen, Inc. | 23 |
6 |
| Telling Industries, LLC | 15 |
6 |
| Ultraframe (UK) Limited | 47 |
6 |
| Fortress Iron, LP | 100 |
5 |
| HNTB Corporation | 6 |
5 |
| Konecranes Global Corporation | 484 |
5 |
| Paradigm Focus Product Development Inc. | 9 |
5 |
| Protektorwerk Florenz Maisch GmbH & Co. KG | 82 |
5 |
| Stonelake Pty Ltd | 11 |
5 |
| University of Notre Dame du Lac | 521 |
5 |
| Worthington Armstrong Venture | 110 |
5 |
| ArcelorMittal | 1887 |
4 |
| Bailey Metal Products Limited | 86 |
4 |
| Other owners | 486 |