- All sections
- B - Performing operations; transporting
- B65H - Handling thin or filamentary material, e.g. sheets, webs, cables
- B65H 31/00 - Pile receivers
Patent holdings for IPC class B65H 31/00
Total number of patents in this class: 272
10-year publication summary
|
36
|
24
|
28
|
17
|
18
|
20
|
13
|
9
|
14
|
3
|
| 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Canon Inc. | 36841 |
23 |
| Brother Industries, Ltd. | 13000 |
21 |
| Ricoh Company, Ltd. | 13266 |
15 |
| Kyocera Document Solutions Inc. | 5295 |
15 |
| Hewlett-Packard Development Company, L.P. | 28538 |
13 |
| Seiko Epson Corporation | 18724 |
11 |
| Sharp Corporation | 10015 |
11 |
| Oki Electric Industry Co., Ltd. | 1652 |
9 |
| FUJIFILM Business Innovation Corp. | 7395 |
9 |
| PFU Limited | 707 |
8 |
| Xerox Corporation | 7503 |
7 |
| Toshiba TEC Corporation | 3877 |
7 |
| Glory Ltd. | 1155 |
7 |
| Riso Kagaku Corporation | 666 |
7 |
| Universal Entertainment Corporation | 651 |
7 |
| Nisca Corporation | 168 |
6 |
| Veltek Associates, Inc. | 284 |
6 |
| Canon Finetech Nisca Inc. | 246 |
5 |
| Toshiba Corporation | 12017 |
4 |
| FUJIFILM Corporation | 27102 |
3 |
| Other owners | 78 |