CPC Main Group Additional Only
B32B 2250/00 Layers arrangement
11 direct subcodes
Child Classifications
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- B32B 2250/02 2 layers
- B32B 2250/03 3 layers
- B32B 2250/04 4 layers
- B32B 2250/05 5 or more layers
- B32B 2250/20 All layers being fibrous or filamentary
- B32B 2250/22 All layers being foamed
- B32B 2250/24 All layers being polymeric
- B32B 2250/26 All layers being made of paper or paperboard
- B32B 2250/40 Symmetrical or sandwich layers, e.g. ABA, ABCBA, ABCCBA
- B32B 2250/42 Alternating layers, e.g. ABAB(C), AABBAABB(C)
- B32B 2250/44 Number of layers variable across the laminate
Top Applicants
Top 10 applicants by patent filingsfor class B32, 2013–2023, worldwide · Source: EPO PATSTAT
- NITTO DENKO CORPORATION JP 5,666
- SAINT-GOBAIN GLASS FR 4,491
- 3M INNOVATIVE PROPERTIES COMPANY (MINNESOTA MINING AND MANUFACTURING INNOVATIVE PROPERTIES COMPANY) US 3,703
- DOW GLOBAL TECHNOLOGIES US 3,403
- NITTO DENKO CORPORATION 3,009
- FUJIFILM JP 2,629
- CORNING US 2,623
- LG CHEM KR 2,576
- SEKISUI CHEMICAL COMPANY JP 2,482
- TORAY INDUSTRIES JP 2,189