Skip to content
PCE
Search Classifications
Search for IPC and CPC classification codes or keywords
CPC Subgroup Additional Only
G11B 2220/41

Flat as opposed to hierarchical combination, e.g. library of tapes or discs, CD changer, or groups of record carriers that together store one title

Full Title

Record carriers by type > Combinations of multiple record carriers > Flat as opposed to hierarchical combination, e.g. library of tapes or discs, CD changer, or groups of record carriers that together store one title

3 direct subcodes

Child Classifications

Navigate with arrow keys, Enter to open

  • G11B 2220/412 Distributed storage methods, i.e. the system may autonomously determine for a storage device that provides enough storage capacity for recording
  • G11B 2220/415 Redundant array of inexpensive disks [RAID] systems
  • G11B 2220/417 Redundant array of inexpensive tapes [RAIT] systems

Top Applicants

Top 10 applicants by patent filingsfor class G11, 2013–2023, worldwide · Source: EPO PATSTAT

  1. MICRON TECHNOLOGY US 12,397
  2. SAMSUNG ELECTRONICS COMPANY KR 12,238
  3. SK HYNIX KR 11,371
  4. TAIWAN SEMICONDUCTOR MANUFACTURING COMPANY TW 4,601
  5. INTEL CORPORATION US 3,874
  6. IBM (INTERNATIONAL BUSINESS MACHINES CORPORATION) US 3,866
  7. SANDISK TECHNOLOGIES US 3,151
  8. SK HYNIX 3,143
  9. SAMSUNG ELECTRONICS COMPANY 3,073
  10. WESTERN DIGITAL TECHNOLOGIES US 2,961