F28F21/068 - CPC Classification Index

ClassID:

162258 ⎘

F28F21/068 - CPC Classification

Classification description:

Constructions of heat-exchange apparatus characterised by the selection of particular materials of plastics material; Details for domestic or space-heating systems

Recent Application in this class:

20240263896

2024-08-08

ENERGY REGULATING SYSTEM AND METHODS USING SAME

20220099335

2022-03-31

Diffuser plates and diffuser plate assemblies

20200033026

2020-01-30

Diffuser plates and diffuser plate assemblies

20180320991

2018-11-08

Diffuser plates and diffuser plates assemblies