Inventor
SMITH KEITH E
US20 patents
⚠️ This page may combine multiple inventors who share the name “SMITH KEITH E”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
SMITH KEITH E
7 patentsUS4926517AMay 22, 1990
Sweeper
SMITH KEITH E19 citations81
USRE38973EFeb 14, 2006
Sweeper
SMITH KEITH E6 citations73
US4854002AAug 8, 1989
Gutter broom with locking mechanism
SMITH KEITH E8 citations73
US10689820B1Jun 23, 2020
Surface cleaning machine for road construction
SMITH KEITH E4 citations72
US10662593B1May 26, 2020
Drag box apparatus
SMITH KEITH E2 citations72
US10309069B1Jun 4, 2019
Street sweeper
SMITH KEITH E3 citations72
US12139865B2Nov 12, 2024
Floating brush sweeper
SMITH KEITH E0 citations51
LINKUSA CORP
6 patentsUS5546449AAug 13, 1996
System and method for call conferencing
LINKUSA CORP114 citations99
US5483587AJan 9, 1996
System and method for call conferencing
LINKUSA CORP232 citations99
US5903637AMay 11, 1999
System and method for call conferencing
LINKUSA CORP103 citations98
US5873099AFeb 16, 1999
System and method for maintaining redundant databases
LINKUSA CORP95 citations98
US5646982AJul 8, 1997
System and method for message delivery
LINKUSA CORP209 citations98
US5586175ADec 17, 1996
Call-processing system and method
LINKUSA CORP144 citations98