Ludwig Hellenthal

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Kirchhundem, DE

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Patents Grantslast 30 patents

Information Patent Grant
Roll
- Patent number 7,481,754
- Issue date Jan 27, 2009
- Walzen Irle GmbH
- Jürgen Krüger
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information Patent Grant
Heatable calender roll
- Patent number 7,174,949
- Issue date Feb 13, 2007
- Walzen Irle GmbH
- Ludwig Hellenthal
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information Patent Grant
Roll, in particular, calender roll
- Patent number 7,018,512
- Issue date Mar 28, 2006
- Walzen Irle GmbH
- Jaxa von Schweinichen
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information Patent Grant
Induction heating for thermal rollers
- Patent number 6,278,094
- Issue date Aug 21, 2001
- Walzen Irle GmbH
- Hans-Jochen Rindfleisch
- H05 - ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
Information Patent Grant
Electrically heated calender roll
- Patent number 5,397,290
- Issue date Mar 14, 1995
- Walzen Irie GmbH
- Ludwig Hellenthal
- B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
Information Patent Grant
Controllable-temperature roll
- Patent number 5,370,177
- Issue date Dec 6, 1994
- Walzen Irle GmbH
- Gustav Fey
- F28 - HEAT EXCHANGE IN GENERAL

Patents Applicationslast 30 patents

Information Patent Application
Reel Driving Device Comprising Driving Rolls Provided with a Cast E...
- Publication number 20070259201
- Publication date Nov 8, 2007
- Thomas Holzhauer
- B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
Information Patent Application
Plasmatized heat exchanger
- Publication number 20060144563
- Publication date Jul 6, 2006
- Ludwig Hellenthal
- F28 - HEAT EXCHANGE IN GENERAL
Information Patent Application
Roll
- Publication number 20040266596
- Publication date Dec 30, 2004
- Walzen Irle GmbH
- Jurgen Kruger
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information Patent Application
Roll, in particular, calender roll
- Publication number 20020069994
- Publication date Jun 13, 2002
- Walzen Irle GmbH
- Jaxa von Schweinichen
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information Patent Application
Heat exchanger with safety valve
- Publication number 20010027863
- Publication date Oct 11, 2001
- Walzen Irle GmbH and S.D. Warren Service Cmpany
- Ludwig Hellenthal
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE