CPC Main Group
H01S 3/00 Lasers, i.e. devices using stimulated emission of electromagnetic radiation in the infrared, visible or ultraviolet wave range (semiconductors lasers H01S5/00)
Filing statistics
CPC H01S 3/00 belongs to the parent subclass H01S, which recorded 71,652 patent applications worldwide between 2013 and 2023. Annual filings grew from 4,061 in 2013 to 6,752 in 2023 (+66%), peaking at 8,409 applications in 2020. The most active applicants in class H01 are SAMSUNG ELECTRONICS COMPANY (37,897 applications), TAIWAN SEMICONDUCTOR MANUFACTURING COMPANY (36,116 applications) and APPLIED MATERIALS (21,640 applications).
Source: EPO PATSTAT, worldwide filings
10 direct subcodes
Child Classifications
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- H01S 3/02 Constructional details
- H01S 3/05 Construction or shape of optical resonators; Accommodation of active medium therein; Shape of active medium
- H01S 3/09 Processes or apparatus for excitation, e.g. pumping
- H01S 3/10 Controlling the intensity, frequency, phase, polarisation or direction of the emitted radiation, e.g. switching, gating, modulating or demodulating
- H01S 3/14 characterised by the material used as the active medium
- H01S 3/23 Arrangements of two or more lasers not provided for in groups H01S3/02 - H01S3/22, e.g. tandem arrangements of separate active media
- H01S 3/30 using scattering effects, e.g. stimulated Brillouin or Raman effects
Top Applicants
Top 10 applicants by patent filingsfor class H01, 2013–2023, worldwide · Source: EPO PATSTAT
- SAMSUNG ELECTRONICS COMPANY KR 37,897
- TAIWAN SEMICONDUCTOR MANUFACTURING COMPANY TW 36,116
- APPLIED MATERIALS US 21,640
- LG ENERGY SOLUTION KR 20,770
- LG CHEM KR 19,835
- TOKYO ELECTRON JP 18,519
- ROBERT BOSCH DE 14,595
- INTEL CORPORATION US 13,580
- MURATA MANUFACTURING COMPANY JP 12,151
- SAMSUNG SDI COMPANY KR 12,080