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CPC Subgroup Additional Only
B65D 2581/3439

Means for affecting the heating or cooking properties

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 > Means for affecting the heating or cooking properties

11 direct subcodes

Child Classifications

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  • B65D 2581/3444 Packages having devices which convert microwave energy into movement
  • B65D 2581/3445 Microwave reactive adhesives, e.g. also used in valves or lids
  • B65D 2581/3447 Heat attenuators, blocking agents or heat insulators for temperature control
  • B65D 2581/3448 Binders for microwave reactive materials, e.g. for inks or coatings
  • B65D 2581/345 Chemical browning agents or aroma adding agents, e.g. smoked flavour
  • B65D 2581/3451 Microwave reactive fibres, i.e. microwave reactive material in the form of fibres
  • B65D 2581/3452 Packages having a plurality of microwave reactive layers, i.e. multiple or overlapping microwave reactive layers
  • B65D 2581/3454 Microwave reactive layer having a specified optical density

Top Applicants

Top 10 applicants by patent filingsfor class B65, 2013–2023, worldwide · Source: EPO PATSTAT

  1. P&G (PROCTER & GAMBLE COMPANY) US 3,369
  2. KRONES DE 3,304
  3. TETRA LAVAL HOLDINGS & FINANCE CH 2,227
  4. CANON JP 2,051
  5. AUTOSTORE TECHNOLOGY NO 1,731
  6. GPI (GRAPHIC PACKAGING INTERNATIONAL) US 1,707
  7. CANON 1,693
  8. G.D IT 1,678
  9. MURATA MACHINERY JP 1,664
  10. DAIFUKU COMPANY JP 1,654