- All sections
- B - Performing operationstransporting
- B31B - Making containers of paper, cardboard or material worked in a manner analogous to paper
- B31B 70/81 - Forming or attaching accessories, e.g. opening devices, closures or tear strings
Patent holdings for IPC class B31B 70/81
Total number of patents in this class: 201
10-year publication summary
|
8
|
28
|
29
|
27
|
23
|
20
|
24
|
23
|
23
|
11
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Idemitsu Unitech Co., Ltd. | 191 |
25 |
| Illinois Tool Works Inc. | 11468 |
13 |
| The Glad Products Company | 510 |
10 |
| Poly-America, L.P., Poly-America GP, LLC, a Texas Limited Liability Company | 196 |
8 |
| CMD Corporation | 59 |
7 |
| Totani Corporation | 118 |
7 |
| Holweg Group | 24 |
5 |
| Rezip Co. | 9 |
5 |
| Kellanova | 513 |
5 |
| S. C. Johnson & Son, Inc. | 2776 |
4 |
| Nike, Inc. | 14174 |
4 |
| Innoflex Incorporated | 22 |
4 |
| Reynolds Presto Products Inc. | 132 |
4 |
| Graphic Packaging International, LLC | 1483 |
4 |
| Creamill Oy | 6 |
4 |
| Fuji Seal International, Inc. | 286 |
3 |
| Hosokawa Yoko Co., Ltd. | 140 |
3 |
| Mondi AG | 170 |
3 |
| Polytex Fibers Corporation | 28 |
3 |
| Starlinger & Co Gesellschaft m.b.H. | 109 |
3 |
| Other owners | 77 |