- All sections
- G - Physics
- G01R - Measuring electric variablesmeasuring magnetic variables
- G01R 27/28 - Measuring attenuation, gain, phase shift, or derived characteristics of electric four-pole networks, i.e. two-port networksMeasuring transient response
Patent holdings for IPC class G01R 27/28
Total number of patents in this class: 789
10-year publication summary
|
58
|
65
|
54
|
44
|
39
|
38
|
37
|
27
|
22
|
8
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| ROHDE & Schwarz GmbH & Co. KG | 1913 |
67 |
| Keysight Technologies, Inc. | 1195 |
22 |
| Texas Instruments Incorporated | 19487 |
15 |
| Advantest Corporation | 1831 |
15 |
| International Business Machines Corporation | 61023 |
14 |
| Anritsu Company | 75 |
14 |
| Murata Manufacturing Co., Ltd. | 24342 |
13 |
| Samsung Electronics Co., Ltd. | 144143 |
12 |
| Taiwan Semiconductor Manufacturing Company, Ltd. | 42118 |
10 |
| National Instruments Corporation | 789 |
10 |
| Tektronix, Inc. | 667 |
10 |
| Maury Microwave, Inc. | 71 |
8 |
| National Instruments Ireland Resources Limited | 20 |
7 |
| Analog Devices International Unlimited Company | 1876 |
7 |
| Rosenberger Hochfrequenztechnik GmbH & Co. KG | 680 |
6 |
| Tsironis, Christos | 25 |
6 |
| Micron Technology, Inc. | 26209 |
5 |
| Raytheon Company | 8388 |
5 |
| Cirrus Logic, Inc. | 1770 |
5 |
| Sony Corporation | 31148 |
4 |
| Other owners | 534 |