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:
Feb. 28, 2017
Filed:
Sep. 16, 2008
Claudia Hüppchen, Stuttgart, DE;
Harald Banzhaf, Stuttgart, DE;
Gunnar-marcel Klein, Velbert-Langenberg, DE;
Thorsten Schmid, Stuttgart, DE;
Claudia Hüppchen, Stuttgart, DE;
Harald Banzhaf, Stuttgart, DE;
Gunnar-Marcel Klein, Velbert-Langenberg, DE;
Thorsten Schmid, Stuttgart, DE;
MANN+HUMMEL GMBH, Ludwigsburg, DE;
Abstract
A transmission oil filter has a filtration layer of fiberglass medium and, downstream of the filtration layer, a melt blown layer applied to the filtration layer for preventing or reducing introduction of fiberglass into the liquid to be filtered. The filtration layer of fiber glass medium has two faces and a spunbond layer is attached for improved handling of the filtration layer of fiberglass medium to at least one of the two faces.