G11 INFORMATION STORAGE
Description
G11 encompasses technologies for storing, retrieving, and managing information in physical media and systems. It covers magnetic storage (magnetic tape, discs, drums), optical storage (CD, DVD, holographic media), semiconductor memory devices, and mechanical storage systems. The class includes the structural design, encoding methods, read/write mechanisms, and error correction techniques essential to information recording and retrieval across diverse storage media.
Filing statistics
CPC G11 recorded 211,941 patent applications worldwide between 2013 and 2023, summed across its 2 subclasses. Annual filings declined from 18,775 in 2013 to 16,631 in 2023 (-11%), peaking at 21,772 applications in 2021. The most active applicants in class G11 are MICRON TECHNOLOGY (12,397 applications), SAMSUNG ELECTRONICS COMPANY (12,238 applications) and SK HYNIX (11,371 applications).
Source: EPO PATSTAT, worldwide filings
2 direct subcodes
Child Classifications
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- G11B INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER (recording measured values in a way that does not require playback through a transducer G01D9/00; recording or playback apparatus using mechanically marked tape, e.g. punched paper tape, or using unit records, e.g. punched or magnetically marked cards G06K; transferring data from one type of record carrier to another G06K1/18; circuits for coupling output of reproducer to radio receiver H04B1/20; gramophone pick-ups or like acoustic electromechanical transducers or circuits therefor H04R)
- G11C STATIC STORES (semiconductor memory devices H10B)
Top Applicants
Top 10 applicants by patent filings, 2013–2023, worldwide · Source: EPO PATSTAT
- MICRON TECHNOLOGY US 12,397
- SAMSUNG ELECTRONICS COMPANY KR 12,238
- SK HYNIX KR 11,371
- TAIWAN SEMICONDUCTOR MANUFACTURING COMPANY TW 4,601
- INTEL CORPORATION US 3,874
- IBM (INTERNATIONAL BUSINESS MACHINES CORPORATION) US 3,866
- SANDISK TECHNOLOGIES US 3,151
- SK HYNIX 3,143
- SAMSUNG ELECTRONICS COMPANY 3,073
- WESTERN DIGITAL TECHNOLOGIES US 2,961