The following table shows the ranking of Applicants of PCT applications. The ranking is based on the following conditions.
- Technical field: Sound (digital audio processing, tuning device, speech processing, voice search, noise cancellation, microphone, piano, electronic instrument, etc.)
- Status: PCTapplications in 2018 (publication date by WIPO).
- Count: The number of patent applictions filed by each applicant was counted.
|3||73||SAMSUNG ELECTRONICS CO.. LTD.|
|5||68||MICROSOFT TECHNOLOGY LICENSING. LLC|
|6||30||NOKIA TECHNOLOGIES OY|
|8||25||HUAWEI TECHNOLOGIES CO.. LTD.|
|9||25||TENCENT TECHNOLOGY (SHENZHEN) COMPANY LIMITED|
|11||23||PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO.. LTD.|
|12||20||FRAUNHOFER-GESELLSCHAFT ZUR FÖRDERUNG DER ANGEWANDTEN FORSCHUNG E.V.|
|13||19||KONINKLIJKE PHILIPS N.V.|
|14||19||MITSUBISHI ELECTRIC CORPORATION|
|16||17||AMAZON TECHNOLOGIES. INC.|
|17||16||NIPPON TELEGRAPH AND TELEPHONE CORPORATION|
|18||15||ALIBABA GROUP HOLDING LIMITED|
|19||15||HEWLETT-PACKARD DEVELOPMENT COMPANY. L.P.|
|20||15||CIRRUS LOGIC INTERNATIONAL SEMICONDUCTOR LIMITED|
In the patent search, it was confirmed that a high-accuracy population (i.e., a population not including non-relevant fields) of patents was obtained. Subsequently, the population was used to create the table.