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PCE
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Search for IPC and CPC classification codes or keywords
DIFF Main Group
G11B 13/00

Recording simultaneously or selectively by methods covered by different main groups ; Record carriers therefor ; Reproducing therefrom

Introduced: September 1968

Title

Titles differ between systems:

IPC: Recording simultaneously or selectively by methods or means covered by different main groups; Record carriers therefor; Reproducing simultaneously or selectively therefrom

CPC: Recording simultaneously or selectively by methods covered by different main groups ; Record carriers therefor ; Reproducing therefrom

Full Title

Full titles differ between systems:

IPC:

Recording simultaneously or selectively by methods or means covered by different main groups; Record carriers therefor; Reproducing simultaneously or selectively therefrom

CPC:

Recording simultaneously or selectively by methods covered by different main groups ; Record carriers therefor ; Reproducing therefrom

IPC and CPC are identically structured here. All 4 subcodes exist in both systems.

Child Classifications

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  • G11B 13/02 magnetically and by styli IPC+CPC Available in IPC and CPC
  • G11B 13/06 optically and by styli IPC+CPC Available in IPC and CPC
  • G11B 13/08 using near-field interactions or transducing means and at least one other method or means for recording or reproducing since 2000 IPC+CPC Available in IPC and CPC

Top Applicants

Top Applicants (IPC)

Class G11,2013–2023, worldwide · Source: EPO PATSTAT

  1. MICRON TECHNOLOGY US 10,574
  2. SK HYNIX KR 9,138
  3. SAMSUNG ELECTRONICS COMPANY KR 9,004
  4. TAIWAN SEMICONDUCTOR MANUFACTURING COMPANY TW 3,739
  5. IBM (INTERNATIONAL BUSINESS MACHINES CORPORATION) US 3,443
  6. INTEL CORPORATION US 2,952
  7. SANDISK TECHNOLOGIES US 2,905
  8. WESTERN DIGITAL TECHNOLOGIES US 2,630
  9. TOSHIBA CORPORATION JP 2,593
  10. SEAGATE TECHNOLOGY US 2,472

Top Applicants (CPC)

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