Patent · US Active

Dermal patch

US11786412B2 · kind B2 · utility

0Cited by

9References

18Claims

0Family size

Assignee

Carl Freudenberg KG · DE

Inventors

Thomas Hofbauer · Hirschberg, DE
Daniela Beyer · Remchingen, DE
Sandra Villing-Falusi · Mannheim, DE

Key dates

Filing date	Jun 8, 2017
Grant date	Oct 17, 2023
Priority date	—
Expiry date	Jul 2, 2038

Classification

Technology area (CPC A)Human Necessities
CPC primaryA61F2013/00782
WIPO fieldMedical technology
WIPO sectorInstruments

Abstract

A dermal patch includes: an open-cell foam layer; and an adhesive layer arranged thereon and intended for contact with skin. At least a side of the foam layer facing the adhesive layer has macropores whose cavities are spanned at least partially by a barrier layer formed from the foam layer.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.