- All sections
- B - Performing operationstransporting
- B41K - Stampsstamping or numbering apparatus or devices
- B41K 1/00 - Portable hand-operated devices without means for supporting or locating the articles to be stamped, i.e. hand stampsInking devices or other accessories therefor
Patent holdings for IPC class B41K 1/00
Total number of patents in this class: 61
10-year publication summary
| 4 | 9 | 9 | 8 | 9 | 7 | 3 | 7 | 3 | 3 | 
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 
Principal owners for this class
| Owner | All patents | This class | 
|---|---|---|
| My Sweet Petunia, Inc. | 44 | 10 | 
| Trodat GmbH | 159 | 10 | 
| Colop Stempelerzeugung Skopek Gesellschaft m.b.H. & Co. KG | 86 | 6 | 
| Stampin' Up! Inc. | 91 | 5 | 
| Shachihata Inc. | 88 | 3 | 
| Sun Same Enterprises Co., Ltd. | 36 | 3 | 
| Casio Computer Co., Ltd. | 3452 | 2 | 
| Kiss Nail Products, Inc. | 306 | 2 | 
| CW Consulting Associates, LLC | 15 | 2 | 
| Cricut, Inc. | 181 | 2 | 
| at & S Austria Technologie & Systemtechnik Aktiengesellschaft | 510 | 1 | 
| BM Polyco Ltd | 4 | 1 | 
| Cito-system GmbH | 21 | 1 | 
| Silicon Valley Micro e Corp. | 8 | 1 | 
| Sterling Marking Products Inc. | 17 | 1 | 
| Bystamp | 10 | 1 | 
| L' Oréal | 5563 | 1 | 
| Messer Industries USA, Inc. | 120 | 1 | 
| Twofish Nail Art Systems Inc. | 1 | 1 | 
| Colop Digital GmbH | 17 | 1 | 
| Other owners | 6 | 
