- All sections
- H - Electricity
- H04L - Transmission of digital information, e.g. telegraphic communication
- H04L 27/34 - Amplitude- and phase-modulated carrier systems, e.g. quadrature-amplitude modulated carrier systems
Patent holdings for IPC class H04L 27/34
Total number of patents in this class: 2589
10-year publication summary
285
|
276
|
256
|
289
|
290
|
222
|
193
|
168
|
156
|
43
|
2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
Owner |
All patents
|
This class
|
---|---|---|
Huawei Technologies Co., Ltd. | 100781 |
208 |
Qualcomm Incorporated | 76576 |
190 |
Samsung Electronics Co., Ltd. | 131630 |
169 |
LG Electronics Inc. | 69257 |
147 |
Sony Corporation | 32931 |
77 |
Electronics and Telecommunications Research Institute | 8830 |
74 |
Sun Patent Trust | 1972 |
62 |
Telefonaktiebolaget LM Ericsson (publ) | 26435 |
59 |
Ericsson | 20417 |
56 |
Intel Corporation | 45621 |
47 |
Constellation Designs, LLC | 43 |
40 |
Apple Inc. | 50209 |
37 |
ZTE Corporation | 39218 |
36 |
Panasonic Intellectual Property Corporation of America | 7230 |
33 |
Astrapi Corporation | 51 |
32 |
Marvell Asia PTE, Ltd. | 6841 |
31 |
Mitsubishi Electric Corporation | 43934 |
28 |
Massengill, R. Kemp | 165 |
27 |
Newman, David E. | 165 |
27 |
Cavium International | 5549 |
26 |
Other owners | 1183 |