David P. Parks

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North Canton, OH, US

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Patents Grantslast 30 patents

Information Patent Grant
Removable dirt separation system for a vacuum cleaner
- Patent number 6,875,255
- Issue date Apr 5, 2005
- The Hoover Company
- William G. Alford
- A47 - FURNITURE DOMESTIC ARTICLES OR APPLIANCES COFFEE MILLS SPICE MILLS SUCT...
Information Patent Grant
Hard bag door with air directing arrangement
- Patent number 5,961,676
- Issue date Oct 5, 1999
- The Hoover Company
- Douglass A. King
- A47 - FURNITURE DOMESTIC ARTICLES OR APPLIANCES COFFEE MILLS SPICE MILLS SUCT...
Information Patent Grant
Hard bag door with air directing arrangement
- Patent number 5,863,309
- Issue date Jan 26, 1999
- Jeffrey S. Louis
- A47 - FURNITURE DOMESTIC ARTICLES OR APPLIANCES COFFEE MILLS SPICE MILLS SUCT...

Patents Applicationslast 30 patents

Information Patent Application
Removable dirt separation system for a vacuum cleaner
- Publication number 20030208878
- Publication date Nov 13, 2003
- William G. Alford
- A47 - FURNITURE DOMESTIC ARTICLES OR APPLIANCES COFFEE MILLS SPICE MILLS SUCT...
Information Patent Application
Disposable filtration bag
- Publication number 20030145566
- Publication date Aug 7, 2003
- David P. Parks
- B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL