CPC Main Group Additional Only
F01N 2310/00 Selection of sound absorbing or insulating material
7 direct subcodes
Child Classifications
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- F01N 2310/02 Mineral wool, e.g. glass wool, rock wool, asbestos or the like
- F01N 2310/04 Metallic wool, e.g. steel wool, copper wool or the like
- F01N 2310/06 Porous ceramics
- F01N 2310/08 Exfoliated vermiculite, e.g. zonolite, coke, pumice
- F01N 2310/10 Plastic foam
- F01N 2310/12 Granular material
- F01N 2310/14 Wire mesh fabric, woven glass cloth or the like
Top Applicants
Top 10 applicants by patent filingsfor class F01, 2013–2023, worldwide · Source: EPO PATSTAT
- GE (GENERAL ELECTRIC COMPANY) US 9,989
- UNITED TECHNOLOGIES CORPORATION (UTC) US 8,110
- SAFRAN AIRCRAFT ENGINES FR 6,248
- HYUNDAI MOTOR COMPANY KR 4,530
- SIEMENS DE 4,461
- FORD GLOBAL TECHNOLOGIES US 4,029
- RAYTHEON TECHNOLOGIES CORPORATION US 3,947
- TOYOTA MOTOR CORPORATION JP 3,734
- GE (GENERAL ELECTRIC COMPANY) 3,415
- SCHAEFFLER TECHNOLOGIES & COMPANY DE 3,063