IPC Main Group
H01S 5/00 Semiconductor lasers
Introduced: January 2000
Last revised: January 2006
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 5/00 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
Related Keywords
semiconductor devicesSEMICONDUCTOR(S) lasers
8 direct subcodes
Child Classifications
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- H01S 5/02 Structural details or components not essential to laser action
- H01S 5/04 Processes or apparatus for excitation, e.g. pumping
- H01S 5/06 Arrangements for controlling the laser output parameters, e.g. by operating on the active medium
- H01S 5/1 Construction or shape of the optical resonator
- H01S 5/2 Structure or shape of the semiconductor body to guide the optical wave
- H01S 5/3 Structure or shape of the active region; Materials used for the active region
- H01S 5/4 Arrangement of two or more semiconductor lasers, not provided for in groups
- H01S 5/5 Amplifier structures not provided for in groups
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