Dirk Siekmann

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Telford, GB

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Patents Grantslast 30 patents

Information Patent Grant
Cushioning conversion machine and method
- Patent number 6,540,652
- Issue date Apr 1, 2003
- Ranpak Corp.
- Richard O. Ratzel
- Y10 - TECHNICAL SUBJECTS COVERED BY FORMER USPC
Information Patent Grant
Output chute for cushioning conversion machine
- Patent number 6,416,451
- Issue date Jul 9, 2002
- Ranpak Corp.
- Richard O. Ratzel
- B31 - MAKING ARTICLES OF PAPER OR CARDBOARD WORKING PAPER OR CARDBOARD
Information Patent Grant
Output chute for cushioning conversion machine
- Patent number 5,989,176
- Issue date Nov 23, 1999
- Ranpak Corporation
- Richard O. Ratzel
- B31 - MAKING ARTICLES OF PAPER OR CARDBOARD WORKING PAPER OR CARDBOARD