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PCE
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DIFF Subgroup
H01B 3/30

plastics; resins; waxes

Introduced: September 1968

Full Title

Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties > mainly consisting of organic substances > plastics; resins; waxes

Of 14 combined children, 9 exist in both systems.

5 codes are CPC-only extensions.

2 shared codes have differing titles between IPC and CPC.

Child Classifications

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  • H01B 3/301 CPC only CPC only
  • H01B 3/302 CPC only CPC only
  • H01B 3/307 CPC only CPC only
  • H01B 3/308 CPC only CPC only
  • H01B 3/32 natural resins IPC+CPC Available in IPC and CPC
  • H01B 3/34 Waxes (silicone waxes H01B3/46) IPC+CPC Available in IPC and CPC
  • H01B 3/36 condensation products of phenols with aldehydes or ketones IPC+CPC Available in IPC and CPC
  • H01B 3/38 condensation products of aldehydes with amines or amides IPC+CPC Available in IPC and CPC
  • H01B 3/40 epoxy resins IPC+CPC Available in IPC and CPC
  • H01B 3/47 fibre-reinforced plastics, e.g. glass-reinforced plastics since 2006 IPC+CPC Available in IPC and CPC

Top Applicants

Top Applicants (IPC)

Class H01,2013–2023, worldwide · Source: EPO PATSTAT

  1. TAIWAN SEMICONDUCTOR MANUFACTURING COMPANY TW 43,574
  2. SAMSUNG ELECTRONICS COMPANY KR 42,206
  3. LG CHEM KR 21,383
  4. APPLIED MATERIALS US 20,441
  5. LG ENERGY SOLUTION KR 20,279
  6. SAMSUNG DISPLAY KR 19,725
  7. CHINESE ACADEMY OF SCIENCES 19,400
  8. TOYOTA MOTOR CORPORATION 18,819
  9. SGCC(STATE GRID CORPORATION OF CHINA) 18,082
  10. TOKYO ELECTRON JP 17,634

Top Applicants (CPC)

Class H01,2013–2023, worldwide · Source: EPO PATSTAT

  1. SAMSUNG ELECTRONICS COMPANY KR 37,897
  2. TAIWAN SEMICONDUCTOR MANUFACTURING COMPANY TW 36,116
  3. APPLIED MATERIALS US 21,640
  4. LG ENERGY SOLUTION KR 20,770
  5. LG CHEM KR 19,835
  6. TOKYO ELECTRON JP 18,519
  7. ROBERT BOSCH DE 14,595
  8. INTEL CORPORATION US 13,580
  9. MURATA MANUFACTURING COMPANY JP 12,151
  10. SAMSUNG SDI COMPANY KR 12,080