- All sections
- H - Electricity
- H04L - Transmission of digital information, e.g. telegraphic communication
- H04L 51/23 - Reliability checks, e.g. acknowledgments or fault reporting
Patent holdings for IPC class H04L 51/23
Total number of patents in this class: 156
10-year publication summary
|
2
|
10
|
1
|
4
|
3
|
16
|
26
|
33
|
29
|
12
|
| 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| BlackBerry Limited | 5958 |
6 |
| Tigerconnect, Inc. | 46 |
6 |
| Google LLC | 38759 |
5 |
| KnowBe4, Inc. | 226 |
5 |
| Apple Inc. | 50209 |
4 |
| Research In Motion Limited | 2283 |
4 |
| Ericsson | 20417 |
4 |
| salesforce.com, inc. | 5003 |
4 |
| Lleidanetworks Serveis Telematics, S.A. | 58 |
4 |
| META Platforms, Inc. | 7514 |
4 |
| Royal Bank of Canada | 1839 |
3 |
| Capital One Services, LLC. | 7551 |
3 |
| Groupon, Inc. | 935 |
3 |
| Rideshark Corporation | 14 |
3 |
| ValiMail Inc. | 61 |
3 |
| Workday, Inc. | 505 |
3 |
| Motorola Solutions, Inc. | 4355 |
2 |
| Microsoft Technology Licensing, LLC | 51439 |
2 |
| Nokia Technologies Oy | 15057 |
2 |
| Email on Acid, LLC | 5 |
2 |
| Other owners | 84 |