CPC Main Group
B32B 23/00 Layered products comprising cellulosic plastic substances
7 direct subcodes
Child Classifications
Navigate with arrow keys, Enter to open
- B32B 23/02 in the form of fibres or filaments
- B32B 23/04 comprising such substance as the main or only constituent of a layer, next to another layer of a
- B32B 23/10 next to a fibrous or filamentary layer
- B32B 23/12 next to a particulate layer
- B32B 23/14 characterised by containing special compounding ingredients
- B32B 23/20 comprising esters
- B32B 23/22 comprising ethers
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