- All sections
- E - Fixed constructions
- E04C - Structural elements; building materials
- E04C 2/42 - Gratings; Grid-like panels
Patent holdings for IPC class E04C 2/42
Total number of patents in this class: 142
10-year publication summary
|
13
|
11
|
12
|
7
|
18
|
10
|
11
|
5
|
5
|
3
|
| 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Ohio Gratings, Inc. | 28 |
7 |
| Emeh, Inc. | 91 |
6 |
| Hilti Aktiengesellschaft | 3227 |
5 |
| ACO Severin Ahlmann GmbH & Co. KG | 115 |
4 |
| Protektorwerk Florenz Maisch GmbH & Co. KG | 82 |
4 |
| Gebr. Meiser GmbH | 3 |
3 |
| Structa Wire Corp. | 14 |
3 |
| University of Canterbury | 29 |
3 |
| Worthington Armstrong Venture | 110 |
3 |
| LEKO Labs SA | 16 |
3 |
| Hubbell Incorporated | 3052 |
2 |
| Belanger, Inc. | 115 |
2 |
| Covestro LLC | 577 |
2 |
| Forcegenie, LLC | 4 |
2 |
| Nucor Corporation | 425 |
2 |
| Senqcia Corporation | 37 |
2 |
| Shanghai Electrician Industry & Commerce Co., Ltd. | 7 |
2 |
| Shanghai Puhe Technology Co., Ltd. | 5 |
2 |
| Steeltec Supply, Inc. | 2 |
2 |
| Techniwood International | 14 |
2 |
| Other owners | 81 |