CPC Subgroup Additional Only
B65D 2581/3471 Microwave reactive substances present in the packaging material
Full Title
Containers, packaging elements, or packages, for contents presenting particular transport or storage problems, or adapted to be used for non-packaging purposes after removal of contents > for packaging foodstuffs or other articles intended to be cooked or heated within > specially adapted to be heated by microwaves > Microwave reactive substances present in the packaging material
8 direct subcodes
Child Classifications
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- B65D 2581/3472 Aluminium or compounds thereof
- B65D 2581/3474 Titanium or compounds thereof
- B65D 2581/3477 Iron or compounds thereof
- B65D 2581/3479 Other metallic compounds, e.g. silver, gold, copper, nickel
- B65D 2581/3481 Silicon or oxides thereof
- B65D 2581/3482 Ceramic compositions, e.g. vermiculite, bentonite
- B65D 2581/3483 Carbon, carbon black, or graphite
- B65D 2581/3485 Other unusual non-metallic substances, e.g. ivory, wood
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