CPC Main Group
B65B 31/00 Packaging articles or materials under special atmospheric or gaseous conditions; Adding propellants to aerosol containers
Filing statistics
CPC B65B 31/00 belongs to the parent subclass B65B, which recorded 138,536 patent applications worldwide between 2013 and 2023. Annual filings grew from 8,210 in 2013 to 11,493 in 2023 (+40%), peaking at 16,352 applications in 2020. The most active applicants in class B65 are P&G (PROCTER & GAMBLE COMPANY) (3,369 applications), KRONES (3,304 applications) and TETRA LAVAL HOLDINGS & FINANCE (2,227 applications).
Source: EPO PATSTAT, worldwide filings
5 direct subcodes
Child Classifications
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- B65B 31/02 Filling, closing, or filling and closing, containers in chambers maintained under vacuum or superatmospheric pressure or containing a special atmosphere, e.g. of inert gas
- B65B 31/04 Evacuating, pressurising or gasifying filled containers or wrappers by means of nozzles through which air or other gas, e.g. an inert gas, is withdrawn or supplied
- B65B 31/10 Adding propellants in solid form to aerosol containers
Top Applicants
Top 10 applicants by patent filingsfor class B65, 2013–2023, worldwide · Source: EPO PATSTAT
- P&G (PROCTER & GAMBLE COMPANY) US 3,369
- KRONES DE 3,304
- TETRA LAVAL HOLDINGS & FINANCE CH 2,227
- CANON JP 2,051
- AUTOSTORE TECHNOLOGY NO 1,731
- GPI (GRAPHIC PACKAGING INTERNATIONAL) US 1,707
- CANON 1,693
- G.D IT 1,678
- MURATA MACHINERY JP 1,664
- DAIFUKU COMPANY JP 1,654