- 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: 5495
10-year publication summary
|
229
|
303
|
370
|
448
|
738
|
785
|
797
|
810
|
712
|
250
|
| 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| International Business Machines Corporation | 60644 |
177 |
| Microsoft Technology Licensing, LLC | 51439 |
144 |
| Intel Corporation | 45621 |
126 |
| Nchain Licensing AG | 612 |
92 |
| Advanced New Technologies Co., Ltd. | 2617 |
91 |
| Siemens AG | 24990 |
81 |
| Pure Storage, Inc. | 2435 |
68 |
| Samsung Electronics Co., Ltd. | 131630 |
66 |
| Google LLC | 38759 |
65 |
| Nippon Telegraph and Telephone Corporation | 14195 |
61 |
| Amazon Technologies, Inc. | 24422 |
60 |
| Huawei Technologies Co., Ltd. | 100781 |
59 |
| NEC Corporation | 32703 |
57 |
| DocuSign, Inc. | 278 |
55 |
| Hewlett-Packard Development Company, L.P. | 28538 |
51 |
| Dell Products L.P. | 11144 |
50 |
| Alipay (Hangzhou) Information Technology Co., Ltd. | 1050 |
43 |
| Bank of America Corporation | 6495 |
41 |
| Sony Corporation | 32931 |
40 |
| Qualcomm Incorporated | 76576 |
37 |
| Other owners | 4031 |