The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Nov. 12, 2019
Filed:
Mar. 03, 2015
Applicant:
Carl Freudenberg KG, Weinheim, DE;
Inventors:
Rudolf Wagner, Muellheim, DE;
Guenter Frey, Schliengen, DE;
Klaus Marek, Muellheim, DE;
Armin Greiner, Weinheim, DE;
Jochen Bialek, Ilvesheim, DE;
Assignee:
CARL FREUDENBERG KG, Weinheim, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
D21H 27/00 (2006.01); G02B 5/02 (2006.01); D21H 13/14 (2006.01); D21H 13/24 (2006.01); F21V 3/06 (2018.01); F21Y 115/10 (2016.01);
U.S. Cl.
CPC ...
D21H 27/00 (2013.01); D21H 13/14 (2013.01); D21H 13/24 (2013.01); F21V 3/06 (2018.02); G02B 5/021 (2013.01); G02B 5/0205 (2013.01); G02B 5/0236 (2013.01); G02B 5/0268 (2013.01); F21Y 2115/10 (2016.08); G02B 5/0273 (2013.01);
Abstract
A wet-laid nonwoven having a1) 5-50 wt % matrix fibers and a2) 50-95 wt % at least partially thermally fused binding fibers or b1) 50-80 wt % matrix fibers and b2) 20-50 wt % binders, can be used as a light distributing element.