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CPC Subgroup Additional Only
G11B 2220/211

Discs having both read-only and rewritable or recordable areas containing application data; Partial ROM media

Full Title

Record carriers by type > Disc-shaped record carriers > characterised in that the disc is of read-only, rewritable, or recordable type > Discs having both read-only and rewritable or recordable areas containing application data; Partial ROM media

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