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DIFF Subgroup
C03B 37/10

Non-chemical treatment (surface treatment of fibres or filaments made from glass, minerals or slags C03C25/00)

Introduced: September 1968

Title

Titles differ between systems:

IPC: Non-chemical treatment

CPC: Non-chemical treatment (surface treatment of fibres or filaments made from glass, minerals or slags C03C25/00)

Full Title

Full titles differ between systems:

IPC:

Manufacture or treatment of flakes, fibres, or filaments from softened glass, minerals, or slags > Non-chemical treatment

CPC:

Manufacture or treatment of flakes, fibres, or filaments from softened glass, minerals, or slags > Non-chemical treatment (surface treatment of fibres or filaments made from glass, minerals or slags C03C25/00)

IPC and CPC are identically structured here. All 3 subcodes exist in both systems.

2 shared codes have differing titles between IPC and CPC.

IPC defines codes here since 1980.

Child Classifications

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  • C03B 37/12 of fibres or filaments during winding up since 1980 IPC+CPC Available in IPC and CPC
  • C03B 37/16 Cutting or severing (light guides G02B6/25) since 1980 IPC+CPC Available in IPC and CPC

Top Applicants

Top Applicants (IPC)

Class C03,2013–2023, worldwide · Source: EPO PATSTAT

  1. CORNING US 8,800
  2. SAINT-GOBAIN GLASS FR 3,535
  3. NIPPON ELECTRIC GLASS COMPANY JP 2,675
  4. NIPPON ELECTRIC GLASS COMPANY 2,616
  5. AGC JP 1,911
  6. SCHOTT DE 1,846
  7. ASAHI GLASS COMPANY JP 1,632
  8. CORNING 1,556
  9. A G C 1,250
  10. SEKISUI CHEMICAL COMPANY JP 1,087

Top Applicants (CPC)

Class C03,2013–2023, worldwide · Source: EPO PATSTAT

  1. CORNING US 9,559
  2. SAINT-GOBAIN GLASS FR 3,824
  3. NIPPON ELECTRIC GLASS COMPANY JP 2,792
  4. SCHOTT DE 2,029
  5. AGC JP 1,938
  6. ASAHI GLASS COMPANY JP 1,679
  7. CORNING 1,650
  8. NIPPON ELECTRIC GLASS COMPANY 1,501
  9. A G C 1,049
  10. O-I (OWENS-ILLINOIS) US 1,027