Functional characteristics

Filing statistics

CPC H01S 2301/00 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 2301/02 ASE (amplified spontaneous emission), noise; Reduction thereof
H01S 2301/03 Suppression of nonlinear conversion, e.g. specific design to suppress for example stimulated brillouin scattering [SBS], mainly in optical fibres in combination with multimode pumping
H01S 2301/04 Gain spectral shaping, flattening
H01S 2301/06 Gain non-linearity, distortion; Compensation thereof
H01S 2301/08 Generation of pulses with special temporal shape or frequency spectrum
H01S 2301/14 Semiconductor lasers with special structural design for lasing in a specific polarisation mode
H01S 2301/16 Semiconductor lasers with special structural design to influence the modes, e.g. specific multimode
H01S 2301/17 Semiconductor lasers comprising special layers
H01S 2301/18 Semiconductor lasers with special structural design for influencing the near- or far-field
H01S 2301/20 Lasers with a special output beam profile or cross-section, e.g. non-Gaussian

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