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DIFF Subgroup
C03B 37/018

by glass deposition on a glass substrate, e.g. by (C03B37/016 takes precedence; ; surface treatment of glass by coating C03C17/02)

Introduced: January 1985

Title

Titles differ between systems:

IPC: by glass deposition on a glass substrate, e.g. by chemical vapour deposition

CPC: by glass deposition on a glass substrate, e.g. by (C03B37/016 takes precedence; ; surface treatment of glass by coating C03C17/02)

Full Title

Full titles differ between systems:

IPC:

Manufacture or treatment of flakes, fibres, or filaments from softened glass, minerals, or slags > Manufacture of glass fibres or filaments > Manufacture of preforms for drawing fibres or filaments > made entirely or partially by chemical means > by glass deposition on a glass substrate, e.g. by chemical vapour deposition

CPC:

Manufacture or treatment of flakes, fibres, or filaments from softened glass, minerals, or slags > Manufacture of glass fibres or filaments > Manufacture of preforms for drawing fibres or filaments > made entirely or partially by chemical means > by glass deposition on a glass substrate, e.g. by (C03B37/016 takes precedence; ; surface treatment of glass by coating C03C17/02)

Of 6 combined children, 0 exist in both systems.

6 codes are CPC-only extensions.

Child Classifications

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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