Jens Fennen

Person

Grenzach-Wyhlen, DE

People

Patents Grantslast 30 patents

Information Patent Grant
Tanning composition and method based on an acetal of an aldehydic t...
- Patent number 10,815,542
- Issue date Oct 27, 2020
- TFL Ledertechnik GmbH
- Catherine Gabagnou
- C14 - SKINS HIDES PELTS LEATHER
Information Patent Grant
Tanning composition and method based on an acetal of an aldehydic t...
- Patent number 10,604,813
- Issue date Mar 31, 2020
- TFL Ledertechnik GmbH
- Catherine Gabagnou
- C14 - SKINS HIDES PELTS LEATHER
Information Patent Grant
Process for retanning leather
- Patent number 10,087,497
- Issue date Oct 2, 2018
- TFL Ledertechnik GmbH
- Jens Fennen
- C14 - SKINS HIDES PELTS LEATHER
Information Patent Grant
Dyed leather and method for dyeing tanned leather
- Patent number 6,916,348
- Issue date Jul 12, 2005
- TFL Ledertechnik GmbH
- Jens Fennen
- C14 - SKINS HIDES PELTS LEATHER

Patents Applicationslast 30 patents

Information Patent Application
DEVICE, EXCHANGE UNIT, KIT, AND METHOD FOR REDUCING THE ODOR OF TAN...
- Publication number 20220127687
- Publication date Apr 28, 2022
- TFL Ledertechnik GmbH
- Jens Fennen
- C14 - SKINS HIDES PELTS LEATHER
Information Patent Application
TANNING COMPOSITION AND METHOD BASED ON AN ACETAL OF AN ALDEHYDIC T...
- Publication number 20190309379
- Publication date Oct 10, 2019
- TFL Ledertechnik GmbH
- Catherine Gabagnou
- C14 - SKINS HIDES PELTS LEATHER
Information Patent Application
TANNING COMPOSITION AND METHOD BASED ON AN ACETAL OF AN ALDEHYDIC T...
- Publication number 20190106758
- Publication date Apr 11, 2019
- TFL Ledertechnik GmbH
- Catherine Gabagnou
- C14 - SKINS HIDES PELTS LEATHER
Information Patent Application
PROCESS FOR RETANNING LEATHER
- Publication number 20160160301
- Publication date Jun 9, 2016
- TFL Ledertechnik GmbH
- Jens FENNEN
- C14 - SKINS HIDES PELTS LEATHER
Information Patent Application
Composition for the Pretanning of Pelts
- Publication number 20080276378
- Publication date Nov 13, 2008
- TFL Ledertechnik GmbH
- Jens Fennen
- C14 - SKINS HIDES PELTS LEATHER
Information Patent Application
Dyed leather and method for dyeing tanned leather
- Publication number 20050177955
- Publication date Aug 18, 2005
- Jens Fennen
- C14 - SKINS HIDES PELTS LEATHER
Information Patent Application
Dyed leather and method for dyeing tanned leather
- Publication number 20040025260
- Publication date Feb 12, 2004
- Jens Fennen
- C14 - SKINS HIDES PELTS LEATHER

Jens Fennen

Person

Patents Grantslast 30 patents

Tanning composition and method based on an acetal of an aldehydic t...

Tanning composition and method based on an acetal of an aldehydic t...

Process for retanning leather

Dyed leather and method for dyeing tanned leather

Patents Applicationslast 30 patents

DEVICE, EXCHANGE UNIT, KIT, AND METHOD FOR REDUCING THE ODOR OF TAN...

TANNING COMPOSITION AND METHOD BASED ON AN ACETAL OF AN ALDEHYDIC T...

TANNING COMPOSITION AND METHOD BASED ON AN ACETAL OF AN ALDEHYDIC T...

PROCESS FOR RETANNING LEATHER

Composition for the Pretanning of Pelts

Dyed leather and method for dyeing tanned leather

Dyed leather and method for dyeing tanned leather