Federico Ferretti

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Cesena, IT

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Patents Grantslast 30 patents

Information Patent Grant
Dynamic chair back lumbar support system
- Patent number 9,504,331
- Issue date Nov 29, 2016
- HNI Technologies Inc.
- Jay R. Machael
- A47 - FURNITURE DOMESTIC ARTICLES OR APPLIANCES COFFEE MILLS SPICE MILLS SUCT...
Information Patent Grant
Dynamic chair back lumbar support system
- Patent number 8,251,448
- Issue date Aug 28, 2012
- HNI Technologies Inc.
- Jay R. Machael
- A47 - FURNITURE DOMESTIC ARTICLES OR APPLIANCES COFFEE MILLS SPICE MILLS SUCT...

Patents Applicationslast 30 patents

Information Patent Application
DYNAMIC CHAIR BACK LUMBAR SUPPORT SYSTEM
- Publication number 20130169014
- Publication date Jul 4, 2013
- HNI Technologies Inc.
- Jay R. Machael
- A47 - FURNITURE DOMESTIC ARTICLES OR APPLIANCES COFFEE MILLS SPICE MILLS SUCT...
Information Patent Application
DYNAMIC CHAIR BACK LUMBAR SUPPORT SYSTEM
- Publication number 20080272636
- Publication date Nov 6, 2008
- Jay R. Machael
- A47 - FURNITURE DOMESTIC ARTICLES OR APPLIANCES COFFEE MILLS SPICE MILLS SUCT...