- All sections
- G - Physics
- G06F - Electric digital data processing
- G06F 21/64 - Protecting data integrity, e.g. using checksums, certificates or signatures
Patent holdings for IPC class G06F 21/64
Total number of patents in this class: 5907
10-year publication summary
|
303
|
370
|
448
|
739
|
789
|
803
|
829
|
731
|
652
|
30
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| International Business Machines Corporation | 60075 |
167 |
| Microsoft Technology Licensing, LLC | 52891 |
156 |
| Intel Corporation | 46097 |
121 |
| Nchain Licensing AG | 790 |
113 |
| Advanced New Technologies Co., Ltd. | 2594 |
90 |
| Siemens AG | 24572 |
84 |
| Samsung Electronics Co., Ltd. | 138518 |
73 |
| Google LLC | 40754 |
72 |
| Pure Storage, Inc. | 2602 |
70 |
| Dell Products L.P. | 12928 |
69 |
| Nippon Telegraph and Telephone Corporation | 16244 |
69 |
| Huawei Technologies Co., Ltd. | 106498 |
64 |
| Amazon Technologies, Inc. | 25836 |
62 |
| NEC Corporation | 34337 |
60 |
| DocuSign, Inc. | 315 |
58 |
| Hewlett-Packard Development Company, L.P. | 27476 |
51 |
| Bank of America Corporation | 7077 |
46 |
| Alipay (Hangzhou) Information Technology Co., Ltd. | 1189 |
43 |
| Robert Bosch GmbH | 41717 |
40 |
| Sony Corporation | 31565 |
38 |
| Other owners | 4361 |