B01D2239/0677 - CPC Classification Index

ClassID:

30217 ⎘

B01D2239/0677 - CPC Classification

Classification description:

Aspects relating to filtering material for liquid or gaseous fluids; Filter cloth, e.g. knitted, woven non-woven; self-supported material; More than one layer present in the filtering material by spot-welding

Recent Application in this class:

20260138067

2026-05-21

FILTER ASSEMBLIES UTILIZING FULL CROSS-SECTION

20260126021

2026-05-07

FILTER MEDIUM AND METHOD OF PRODUCTION THEREOF

20230405372

2023-12-21

Mouth-Nose Mask

20220118386

2022-04-21

FILTER ASSEMBLIES UTILIZING FULL CROSS-SECTION

20120193283

2012-08-02

POLYPROPYLENE FILTER

20120186452

2012-07-26

Multiple Layer HEPA Filter and Method of Manufacture

20110272343

2011-11-10

Cardiopulmonary bypass circuit including a filtration device

20110173938

2011-07-21

Multi-layered filter web

20100320150

2010-12-23

LIQUID FILTRATION

#10

20100212071

2010-08-26

Adsorption filter material, particularly for producing ABC protective clothing having improved wearing physiology

#11

20100206802

2010-08-19

WELDED STRUCTURE OF SYNTHETIC RESIN MESH, WOVEN FABRIC, KNITTED FABRIC, AND NON-WOVEN CLOTH; FUEL FILTER BODY; AND WELDING METHOD

#12

20080314009

2008-12-25

Fiber collecting media strip for a mist eliminator

#13

20060150594

2006-07-13

Fiber collecting media strip for a mist eliminator

#14

20050045566

2005-03-03

Filtration media created by sonic welding