Inventor
RAGLAND MATT R
US4 patents
Patents
4 patentsUS6328791B1Dec 11, 2001
Air filtration device
HAMILTON BEACH PROCTOR SILEX99 citations98
US6447587B1Sep 10, 2002
Air filtration device
HAMILTON BEACH PROCTOR SILEX83 citations97
US6712889B2Mar 30, 2004
Air filtration device
HAMILTON BEACH PROCTOR SILEX36 citations95
US6863704B2Mar 8, 2005
Air filtration device
HAMILTON BEACH PROCTOR SILEX32 citations92