- All sections
- G - Physics
- G01H - Measurement of mechanical vibrations or ultrasonic, sonic or infrasonic waves
- G01H 3/04 - Frequency
Patent holdings for IPC class G01H 3/04
Total number of patents in this class: 65
10-year publication summary
2
|
5
|
1
|
15
|
11
|
13
|
6
|
5
|
0
|
2
|
2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
Owner |
All patents
|
This class
|
---|---|---|
BP Exploration Operating Company Limited | 270 |
6 |
PASSERRO GmbH | 12 |
4 |
Schlumberger Technology Corporation | 9690 |
2 |
Rockwell Automation Technologies, Inc. | 2547 |
2 |
ABB Schweiz AG | 6321 |
2 |
Asahi Kasei Microdevices Corporation | 461 |
2 |
Karsten Manufacturing Corporation | 2912 |
2 |
Kobe Steel, Ltd. | 912 |
2 |
Plasser & Theurer Export Von Bahnbaumaschinen Gesellschaft m.b.H. | 385 |
2 |
TDW Delaware, Inc. | 163 |
2 |
Versitech Limited | 341 |
2 |
FUJIFILM Business Innovation Corp. | 7395 |
2 |
Halliburton Energy Services, Inc. | 20165 |
1 |
LG Electronics Inc. | 69257 |
1 |
NEC Corporation | 32703 |
1 |
Electronics and Telecommunications Research Institute | 8830 |
1 |
Perkins Engines Company Limited | 279 |
1 |
ZF Friedrichshafen AG | 6820 |
1 |
Pioneer Corporation | 4843 |
1 |
University of South Florida | 1817 |
1 |
Other owners | 27 |