- All sections
- H - Electricity
- H04L - Transmission of digital information, e.g. telegraphic communication
- H04L 1/16 - Arrangements for detecting or preventing errors in the information received by using return channel in which the return channel carries supervisory signals, e.g. repetition request signals
Patent holdings for IPC class H04L 1/16
Total number of patents in this class: 6937
10-year publication summary
|
554
|
752
|
830
|
874
|
658
|
451
|
213
|
93
|
33
|
29
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Qualcomm Incorporated | 93006 |
971 |
| LG Electronics Inc. | 75910 |
801 |
| Huawei Technologies Co., Ltd. | 124379 |
578 |
| Samsung Electronics Co., Ltd. | 158605 |
361 |
| Telefonaktiebolaget LM Ericsson (publ) | 28872 |
215 |
| ZTE Corporation | 44288 |
212 |
| Ericsson | 22929 |
199 |
| Apple Inc. | 59117 |
159 |
| Interdigital Patent Holdings, Inc. | 7100 |
151 |
| NTT DoCoMo, Inc. | 14911 |
137 |
| Guangdong Oppo Mobile Telecommunications Corp., Ltd. | 23524 |
135 |
| Intel Corporation | 47162 |
118 |
| Nokia Technologies Oy | 21548 |
96 |
| NEC Corporation | 37227 |
90 |
| Sun Patent Trust | 1999 |
75 |
| Sharp Kabushiki Kaisha | 18495 |
73 |
| Sony Corporation | 30097 |
71 |
| Beijing Xiaomi Mobile Software Co., Ltd. | 15373 |
71 |
| Fujitsu Limited | 16859 |
70 |
| Panasonic Intellectual Property Corporation of America | 7243 |
69 |
| Other owners | 2285 |