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or gasifying filled containers or wrappers by means of nozzles through which air or other gas, e.g. an inert gas, is withdrawn or supplied
Full Title
Packaging articles or materials under special atmospheric or gaseous conditions; Adding propellants to aerosol containers > 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or gasifying filled containers or wrappers by means of nozzles through which air or other gas, e.g. an inert gas, is withdrawn or supplied
Filing statistics
CPC B65B 31/04 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
6 direct subcodes
Child Classifications
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- B65B 31/06 the nozzle being arranged for insertion into, and withdrawal from, the mouth of a filled container and operating in conjunction with means for sealing the container mouth
- B65B 31/08 the nozzle being adapted to pierce the container or wrapper
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