Inventor

BERKEMANN RALPH

DE5 patents

⚠️ This page may combine multiple inventors who share the name “BERKEMANN RALPH”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.

GREINER ARMIN

2 patents

US8124550B2Feb 28, 2012

Thermally bound non-woven material

GREINER ARMIN4 citations57

US8481437B2Jul 9, 2013

Thermally bound non-woven material

GREINER ARMIN0 citations46

FREUDENBERG CARL FA

1 patent

US6387141B1May 14, 2002

Depth air filter having fibers intertwined by liquid-jetting

FREUDENBERG CARL FA49 citations89

BERKEMANN RALPH

1 patent

US10036107B2Jul 31, 2018

Nonwoven web and fibers with electret properties, manufacturing processes thereof and their use

BERKEMANN RALPH2 citations60

GROZ BECKERT KG

1 patent

US10851476B2Dec 1, 2020

Method for producing a pleatable textile fabric with electrostatically charged fibers

GROZ BECKERT KG0 citations27