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:
Apr. 04, 2023
Filed:
Jun. 29, 2021
Applicant:
Ewald Dörken Ag, Herdecke, DE;
Inventor:
Marcus Jablonka, Vineland, CA;
Assignee:
EWALD DÖRKEN AG, Herdecke, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
E02D 31/02 (2006.01); E02D 31/00 (2006.01);
U.S. Cl.
CPC ...
E02D 31/004 (2013.01); E02D 31/025 (2013.01); E02D 2300/0089 (2013.01);
Abstract
A composite drainboard includes a patterned substrate core having an inward surface, and opposed outward facing surface. The substrate core comprises a plurality of projections, forming concavities on the inward surface. A first geotextile membrane is attached to the substrate core and covers the outward facing surface. A second membrane is attached to the substrate core to cover the inward facing surface and the concavities to provide a substantially smooth coating to the inward surface. The second membrane at least partially absorbs a liquid applied waterproofing.