H01S 5/0225 Out-coupling of light
Introduced: January 2021
Full Title
Semiconductor lasers > Structural details or components not essential to laser action > Mountings; Housings > Out-coupling of light
Classification Context
- Section:
- ELECTRICITY
- Class:
- ELECTRIC ELEMENTS
- Subclass:
- DEVICES USING THE PROCESS OF LIGHT AMPLIFICATION BY STIMULATED EMISSION OF RADIATION [LASER] TO AMPLIFY OR GENERATE LIGHT; DEVICES USING STIMULATED EMISSION OF ELECTROMAGNETIC RADIATION IN WAVE RANGES OTHER THAN OPTICAL
Filing statistics
IPC H01S 5/0225 belongs to the parent subclass H01S, which recorded 85,133 patent applications worldwide between 2013 and 2023. Annual filings grew from 5,897 in 2013 to 8,425 in 2023 (+43%), peaking at 9,425 applications in 2020. The most active applicants in class H01 are TAIWAN SEMICONDUCTOR MANUFACTURING COMPANY (43,574 applications), SAMSUNG ELECTRONICS COMPANY (42,206 applications) and LG CHEM (21,383 applications).
Source: EPO PATSTAT, worldwide filings
4 direct subcodes
Child Classifications
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- H01S 5/02251 using optical fibres
- H01S 5/02253 using lenses
- H01S 5/02255 using beam deflecting elements
- H01S 5/02257 using windows, e.g. specially adapted for back-reflecting light to a detector inside the housing
Top Applicants
Top 10 applicants by patent filingsfor class H01, 2013–2023, worldwide · Source: EPO PATSTAT
- TAIWAN SEMICONDUCTOR MANUFACTURING COMPANY TW 43,574
- SAMSUNG ELECTRONICS COMPANY KR 42,206
- LG CHEM KR 21,383
- APPLIED MATERIALS US 20,441
- LG ENERGY SOLUTION KR 20,279
- SAMSUNG DISPLAY KR 19,725
- CHINESE ACADEMY OF SCIENCES 19,400
- TOYOTA MOTOR CORPORATION 18,819
- SGCC(STATE GRID CORPORATION OF CHINA) 18,082
- TOKYO ELECTRON JP 17,634