Edwin Ritzer

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Leverkusen, DE

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Patents Grantslast 30 patents

Information Patent Grant
Method for producing sorbic anhydride and also use thereof as a pre...
- Patent number 9,102,613
- Issue date Aug 11, 2015
- LANXESS Deutschland GmbH
- Ralf Krahwinkel
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Preservatives based on carboxylic anhydrides
- Patent number 8,440,719
- Issue date May 14, 2013
- LANXESS Deutschland GmbH
- Johannes Kaulen
- A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
Information Patent Grant
Preservatives based on carboxylic anhydrides
- Patent number 8,207,224
- Issue date Jun 26, 2012
- LANXESS Deutchland GmbH
- Johannes Kaulen
- A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE

Patents Applicationslast 30 patents

Information Patent Application
METHOD FOR PRODUCING SORBIC ANHYDRIDE AND ALSO USE THEREOF AS A PRE...
- Publication number 20140087039
- Publication date Mar 27, 2014
- Lanxess Deutschland GmbH
- Ralf Krahwinkel
- A23 - FOODS OR FOODSTUFFS THEIR TREATMENT, NOT COVERED BY OTHER CLASSES
Information Patent Application
METHOD FOR PRESERVING FOOD
- Publication number 20130129732
- Publication date May 23, 2013
- Lanxess Deutschland GmbH
- Rebecca Lässker
- A23 - FOODS OR FOODSTUFFS THEIR TREATMENT, NOT COVERED BY OTHER CLASSES
Information Patent Application
PRESERVATIVES BASED ON CARBOXYLIC ANHYDRIDES
- Publication number 20120232154
- Publication date Sep 13, 2012
- Lanxess Deutschland GmbH
- Johannes Kaulen
- A23 - FOODS OR FOODSTUFFS THEIR TREATMENT, NOT COVERED BY OTHER CLASSES
Information Patent Application
PRESERVATIVE
- Publication number 20100021599
- Publication date Jan 28, 2010
- Lanxess Deutschland GmbH
- Martin Kugler
- A23 - FOODS OR FOODSTUFFS THEIR TREATMENT, NOT COVERED BY OTHER CLASSES
Information Patent Application
PRESERVATIVES BASED ON CARBOXYLIC ANHYDRIDES
- Publication number 20090264532
- Publication date Oct 22, 2009
- Lanxess Deutschland GmbH
- Johannes Kaulen
- A23 - FOODS OR FOODSTUFFS THEIR TREATMENT, NOT COVERED BY OTHER CLASSES