Section Y: Emerging Cross-Sectional Technologies
~7,112,069
Applications (2013–2023)
PATSTAT worldwide
3
Classes
11
Subclasses
341
Main Groups
15,487
CPC Total
Description
Section Y provides supplementary cross-sectional tagging for inventions spanning multiple IPC sections or representing emerging technological developments that do not fit neatly within traditional classification boundaries. It captures hybrid technologies, interdisciplinary innovations, and special technical areas previously organized under US Patent and Trademark Office cross-reference art collections (XRACs). Codes in this section complement primary IPC classifications rather than replace them, enabling improved retrieval of patents addressing contemporary or boundary-crossing technological challenges. This classification system facilitates discovery of inventions at the intersection of distinct technical fields and supports analysis of complex, multi-domain innovations.
Visualizations
Size of each class by number of subgroups
| Class | Title | Descendants |
|---|---|---|
| Y02 | TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE | 339 |
| Y04 | INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS | 42 |
| Y10 | TECHNICAL SUBJECTS COVERED BY FORMER USPC | 15,102 |
Classification entries by hierarchy level
Child Classifications
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Top Applicants
Top 10 applicants by patent filingsin section Y, 2013–2023, worldwide · Source: EPO PATSTAT
- TOYOTA MOTOR CORPORATION 50,480
- SGCC(STATE GRID CORPORATION OF CHINA) 33,956
- CHINESE ACADEMY OF SCIENCES 30,705
- LG CHEM KR 23,877
- LG ENERGY SOLUTION KR 20,650
- HYUNDAI MOTOR COMPANY KR 20,043
- ROBERT BOSCH DE 16,262
- SAMSUNG ELECTRONICS COMPANY KR 16,113
- GE (GENERAL ELECTRIC COMPANY) US 14,268
- GUANGDONG POWER GRID CORPORATION 3,187