CPC Main Group Additional Only
F05C 2253/00 Other material characteristics; Treatment of material
12 direct subcodes
Child Classifications
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- F05C 2253/02 Fabric
- F05C 2253/04 Composite, e.g. fibre-reinforced
- F05C 2253/06 Amorphous
- F05C 2253/08 Crystalline
- F05C 2253/10 Syntactic
- F05C 2253/12 Coating
- F05C 2253/14 Foam
- F05C 2253/16 Fibres
- F05C 2253/18 Filler
- F05C 2253/20 Resin
- F05C 2253/22 Reinforcements
- F05C 2253/24 Heat treatment
Top Applicants
Top 10 applicants by patent filingsfor class F05, 2013–2023, worldwide · Source: EPO PATSTAT
- GE (GENERAL ELECTRIC COMPANY) US 12,002
- UNITED TECHNOLOGIES CORPORATION (UTC) US 8,736
- SAFRAN AIRCRAFT ENGINES FR 6,804
- RAYTHEON TECHNOLOGIES CORPORATION US 4,530
- SIEMENS DE 4,371
- GE (GENERAL ELECTRIC COMPANY) 3,686
- ROLLS-ROYCE GB 3,594
- PRATT & WHITNEY CANADA CORPORATION CA 3,415
- VESTAS DK 3,076
- WOBBEN PROPERTIES DE 2,614