- All sections
- B - Performing operationstransporting
- B31B - Making containers of paper, cardboard or material worked in a manner analogous to paper
- B31B 50/28 - Folding sheets, blanks or webs around mandrels, e.g. for forming bottoms
Patent holdings for IPC class B31B 50/28
Total number of patents in this class: 110
10-year publication summary
|
8
|
18
|
20
|
11
|
11
|
4
|
15
|
8
|
8
|
4
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| WestRock Shared Services, LLC | 533 |
24 |
| Rock-Tenn Shared Services, LLC | 38 |
6 |
| Elopak AS | 65 |
5 |
| DOME ZERO Inc. | 7 |
5 |
| Lancan Systems Inc. | 6 |
5 |
| DS Smith Packaging France | 25 |
4 |
| SIG Services AG | 267 |
4 |
| Dart Container Corporation | 172 |
3 |
| Huhtamaki Oyj | 101 |
3 |
| Graphic Packaging International, LLC | 1616 |
3 |
| Mpi, LLC | 18 |
3 |
| Telesforo González Maquinaria, SLU | 8 |
3 |
| I.M.A. Industria Macchine Automatiche S.p.A. | 525 |
2 |
| Multi Packaging Solutions UK Limited | 55 |
2 |
| Otor | 26 |
2 |
| Packsize LLC | 278 |
2 |
| Paper Machinery Corporation | 11 |
2 |
| SIG Technology AG | 300 |
2 |
| Michael Hoerauf Maschinenfabrik GmbH und Co. KG | 8 |
2 |
| SIG Combibloc Services AG | 27 |
2 |
| Other owners | 26 |