Inventor
JOYCE ROGER F
US6 patents
Patents
6 patentsUS6931793B2Aug 23, 2005
Roof scuttle safety railing system
BILCO CO45 citations89
US6260305B1Jul 17, 2001
Gasket system for a horizontal door
BILCO CO18 citations81
US6041553AMar 28, 2000
Anchorage system for a horizontal door
BILCO CO16 citations76
US8851790B1Oct 7, 2014
Watertight hatch
BILCO CO4 citations70
US6799395B1Oct 5, 2004
Horizontal door lift
BILCO CO11 citations70
US7356968B2Apr 15, 2008
Polymer composite basement door
BILCO CO6 citations61