Skip to content
Search Classifications
Search for IPC and CPC classification codes or keywords
CPC Subgroup
C03C 25/36

Epoxy resins

Full Title

Surface treatment of fibres or filaments made from glass, minerals or slags > Coating > Coatings containing organic materials > Macromolecular compounds or prepolymers > obtained otherwise than by reactions involving only carbon-to-carbon unsaturated bonds > Epoxy resins

Top Applicants

Top 10 applicants by patent filingsfor 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