Inventor
WULFF RICHARD F
US17 patents
⚠️ This page may combine multiple inventors who share the name “WULFF RICHARD F”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
CASTEX INC
5 patentsUS5611106AMar 18, 1997
Carpet maintainer
CASTEX INC188 citations98
US6079080AJun 27, 2000
Upright floor cleaner
CASTEX INC47 citations90
US6115880ASep 12, 2000
Vacuum cleaner configuration
CASTEX INC16 citations82
US6085383AJul 11, 2000
Vacuum cleaner brush wrap geometry
CASTEX INC8 citations68
US5608939AMar 11, 1997
Motor and driver mount diaphragm burnisher
CASTEX INC17 citations66
CASTEX IND INC
5 patentsUS4956891ASep 18, 1990
Floor cleaner
CASTEX IND INC222 citations98
USD337185SJul 6, 1993
Carpet vacuum cleaner
CASTEX IND INC27 citations92
USD316765SMay 7, 1991
Cleaning machine
CASTEX IND INC8 citations73
USD345035SMar 8, 1994
Floor machine handle
CASTEX IND INC4 citations62
USD343932SFeb 1, 1994
Burnisher
CASTEX IND INC4 citations59