IPC Subgroup
B65D 33/16 End- or aperture-closing arrangements or devices
Introduced: September 1968
Last revised: January 2006
Full Title
Details of, or accessories for, sacks or bags > End- or aperture-closing arrangements or devices
Classification Context
- Section:
- PERFORMING OPERATIONS; TRANSPORTING
- Class:
- CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- Subclass:
- CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
Additional Content
Valves of valve bags Closures of filled bags
9 direct subcodes
Child Classifications
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- B65D 33/17 with brackets, rings or locks
- B65D 33/18 using adhesive applied to integral parts, e.g. to flaps
- B65D 33/24 using self-locking integral or attached closure elements, e.g. flaps
- B65D 33/25 Riveting; Dovetailing; Screwing; using press buttons or slide fasteners
- B65D 33/26 using staples or stitches
- B65D 33/28 Strings or strip-like closures
- B65D 33/3 Deformable or resilient metal or like strips or bands
- B65D 33/32 Metallic chain closures
- B65D 33/34 with special means for indicating unauthorised opening
Top Applicants
Top 10 applicants by patent filingsfor class B65, 2013–2023, worldwide · Source: EPO PATSTAT
- CANON 3,755
- SGCC(STATE GRID CORPORATION OF CHINA) 3,721
- YOSHINO KOGYOSHO COMPANY 3,659
- DNP (DAINIPPON PRINTING COMPANY) 3,573
- KRONES DE 3,114
- P&G (PROCTER & GAMBLE COMPANY) US 2,777
- TOPPAN PRINTING COMPANY 2,720
- SEIKO EPSON CORPORATION 2,574
- KYOCERA DOCUMENT SOLUTIONS 2,371
- RICOH COMPANY 2,349