CPC Main Group Additional Only
B32B 2305/00 Condition, form or state of the layers or laminate
Filing statistics
CPC B32B 2305/00 belongs to the parent subclass B32B, which recorded 381,235 patent applications worldwide between 2013 and 2023. Annual filings declined from 28,950 in 2013 to 24,486 in 2023 (-15%), peaking at 43,790 applications in 2016. The most active applicants in class B32 are NITTO DENKO CORPORATION (5,666 applications), SAINT-GOBAIN GLASS (4,491 applications) and 3M INNOVATIVE PROPERTIES COMPANY (MINNESOTA MINING AND MANUFACTURING INNOVATIVE PROPERTIES COMPANY) (3,703 applications).
Source: EPO PATSTAT, worldwide filings
15 direct subcodes
Child Classifications
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- B32B 2305/02 Cellular or porous
- B32B 2305/07 Parts immersed or impregnated in a matrix
- B32B 2305/08 Reinforcements
- B32B 2305/10 Fibres of continuous length
- B32B 2305/22 Fibres of short length
- B32B 2305/30 Fillers, e.g. particles, powders, beads, flakes, spheres, chips
- B32B 2305/34 Inserts
- B32B 2305/38 Meshes, lattices or nets
- B32B 2305/54 Filled microcapsules
- B32B 2305/55 Liquid crystals
- B32B 2305/70 Scrap or recycled material
- B32B 2305/72 Cured, e.g. vulcanised, cross-linked
- B32B 2305/74 Partially cured
- B32B 2305/77 Uncured, e.g. green
- B32B 2305/80 Sintered
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