- All sections
- G - Physics
- G01R - Measuring electric variables; measuring magnetic variables
- G01R 27/28 - Measuring attenuation, gain, phase shift, or derived characteristics of electric four-pole networks, i.e. two-port networks; Measuring transient response
Patent holdings for IPC class G01R 27/28
Total number of patents in this class: 815
10-year publication summary
|
59
|
58
|
65
|
54
|
44
|
39
|
38
|
35
|
24
|
6
|
| 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| ROHDE & Schwarz GmbH & Co. KG | 1831 |
61 |
| Keysight Technologies, Inc. | 1170 |
22 |
| Texas Instruments Incorporated | 19376 |
16 |
| Murata Manufacturing Co., Ltd. | 22355 |
16 |
| Advantest Corporation | 1939 |
16 |
| International Business Machines Corporation | 60644 |
15 |
| Anritsu Company | 79 |
15 |
| Samsung Electronics Co., Ltd. | 131630 |
12 |
| Taiwan Semiconductor Manufacturing Company, Ltd. | 36809 |
11 |
| National Instruments Corporation | 842 |
10 |
| Tektronix, Inc. | 636 |
9 |
| Maury Microwave, Inc. | 70 |
8 |
| Tsironis, Christos | 44 |
8 |
| National Instruments Ireland Resources Limited | 24 |
7 |
| Rosenberger Hochfrequenztechnik GmbH & Co. KG | 677 |
7 |
| Analog Devices International Unlimited Company | 1724 |
6 |
| Sony Corporation | 32931 |
5 |
| Micron Technology, Inc. | 24960 |
5 |
| Raytheon Company | 8535 |
5 |
| Cirrus Logic, Inc. | 1719 |
5 |
| Other owners | 556 |