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DIFF Subgroup
H10D 48/043

Preliminary treatment of the selenium or tellurium, its application to foundation plates or the subsequent treatment of the combination

Introduced: January 2025

Full Title

Full titles differ between systems:

IPC:

Individual devices not covered by groups > Manufacture or treatment > of devices having bodies comprising selenium or tellurium in uncombined form > Preliminary treatment of the selenium or tellurium, its application to foundation plates or the subsequent treatment of the combination

CPC:

Individual devices not covered by groups H10D1/00 - H10D44/00 > Manufacture or treatment > of devices having bodies comprising selenium or tellurium in uncombined form > Preliminary treatment of the selenium or tellurium, its application to foundation plates or the subsequent treatment of the combination

Of 4 combined children, 3 exist in both systems.

1 codes are CPC-only extensions.

IPC defines codes here since 2025.

Child Classifications

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  • H10D 48/0431 CPC only CPC only
  • H10D 48/044 Conversion of the selenium or tellurium to the conductive state since 2025 IPC+CPC Available in IPC and CPC
  • H10D 48/045 Treatment of the surface of the selenium or tellurium layer after having been made conductive since 2025 IPC+CPC Available in IPC and CPC
  • H10D 48/046 Provision of discrete insulating layers since 2025 IPC+CPC Available in IPC and CPC

Top Applicants

Top Applicants (IPC)

Class H10,2013–2023, worldwide · Source: EPO PATSTAT

  1. SAMSUNG DISPLAY KR 21,044
  2. SAMSUNG ELECTRONICS COMPANY KR 14,774
  3. LG DISPLAY COMPANY KR 9,454
  4. TAIWAN SEMICONDUCTOR MANUFACTURING COMPANY TW 8,301
  5. SEMICONDUCTOR ENERGY LABORATORY COMPANY JP 7,642
  6. BOE TECHNOLOGY GROUP COMPANY 6,845
  7. BOE TECHNOLOGY GROUP COMPANY CN 6,806
  8. SAMSUNG DISPLAY 6,577
  9. LG CHEM KR 5,461
  10. SEMICONDUCTOR ENERGY LABORATORY COMPANY 5,115

Top Applicants (CPC)

Class H10,2013–2023, worldwide · Source: EPO PATSTAT

  1. SAMSUNG DISPLAY KR 38,446
  2. TAIWAN SEMICONDUCTOR MANUFACTURING COMPANY TW 30,922
  3. SAMSUNG ELECTRONICS COMPANY KR 30,059
  4. BOE TECHNOLOGY GROUP COMPANY CN 20,304
  5. LG DISPLAY COMPANY KR 17,772
  6. BOE TECHNOLOGY GROUP COMPANY 15,621
  7. SEMICONDUCTOR ENERGY LABORATORY COMPANY JP 13,629
  8. IBM (INTERNATIONAL BUSINESS MACHINES CORPORATION) US 11,750
  9. SAMSUNG DISPLAY 11,316
  10. SEMICONDUCTOR ENERGY LABORATORY COMPANY 9,697