Inventor
VYSTRCIL ROBERT A
US10 patents
Patents
10 patentsUS6108861AAug 29, 2000
Extendable hose for a vacuum cleaner
ROYAL APPLIANCE MFG79 citations96
US5797162AAug 25, 1998
Extendable hose for a vacuum cleaner
ROYAL APPLIANCE MFG63 citations96
US7043794B2May 16, 2006
Self-propelled vacuum cleaner with a neutral return spring
ROYAL APPLIANCE MFG46 citations92
US6514356B2Feb 4, 2003
Edge cleaner for vacuum cleaner
ROYAL APPLIANCE MFG41 citations92
US5869947AFeb 9, 1999
Rechargeable hand held vacuum cleaner with electrical connections circuit board with spring contacts
ROYAL APPLIANCE MFG52 citations92
US6523222B2Feb 25, 2003
Airflow shut-off mechanism for vacuum cleaner
ROYAL APPLIANCE MFG14 citations84
USD588313SMar 10, 2009
Portable cleaning device
ROYAL APPLIANCE MFG8 citations83
US6510584B2Jan 28, 2003
Flow cut-off and brushroll shut-off mechanism for vacuum cleaner
ROYAL APPLIANCE MFG8 citations73
US6406514B1Jun 18, 2002
Vacuum cleaner base assembly
ROYAL APPLIANCE MFG11 citations73
US6571425B2Jun 3, 2003
Method of linkage and locking of connecting coupling member to nozzle base of a vacuum cleaner
ROYAL APPLIANCE MFG4 citations54