Inventor
BOLL DAVID J
US27 patents
⚠️ This page may combine multiple inventors who share the name “BOLL DAVID J”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
ROYAL APPLIANCE MFG
10 patentsUS6775882B2Aug 17, 2004
Stick vacuum with dirt cup
ROYAL APPLIANCE MFG130 citations98
US6347428B1Feb 19, 2002
Hand-held wet/dry vacuum
ROYAL APPLIANCE MFG94 citations97
US6073300AJun 13, 2000
Valve assembly for carpet extractor
ROYAL APPLIANCE MFG83 citations96
USD443960SJun 19, 2001
Portable wet/dry vacuum cleaner
ROYAL APPLIANCE MFG33 citations92
USD475822SJun 10, 2003
Housing for a stick-type vacuum cleaner
ROYAL APPLIANCE MFG14 citations84
USD475491SJun 3, 2003
Dust cup for vacuum cleaner
ROYAL APPLIANCE MFG13 citations84
USD444603SJul 3, 2001
Tool holder for vacuum cleaner wand
ROYAL APPLIANCE MFG15 citations84
USD477446SJul 15, 2003
Nozzle for vacuum cleaner
ROYAL APPLIANCE MFG11 citations74
USD480849SOct 14, 2003
Grill construction for vacuum cleaner
ROYAL APPLIANCE MFG3 citations63
USD480851SOct 14, 2003
Front handle for vacuum cleaner
ROYAL APPLIANCE MFG1 citations52
TECTRAUM INC
3 patentsUS11229547B2Jan 25, 2022
System and method for cooling or heating a human body part
TECTRAUM INC4 citations71
US11458039B2Oct 4, 2022
System and method for treating brain injury
TECTRAUM INC2 citations66
US11723796B2Aug 15, 2023
System and method for cooling or heating a human body part
TECTRAUM INC0 citations60