Inventor
GREBINOSKI JAMES J
US11 patents
⚠️ This page may combine multiple inventors who share the name “GREBINOSKI JAMES J”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
WERNER CO
5 patentsUS7886872B2Feb 15, 2011
Electrician's ladder and method
WERNER CO31 citations90
US8042653B2Oct 25, 2011
Adjustable work platform
WERNER CO35 citations86
USD584422SJan 6, 2009
Ladder leveler stile
WERNER CO10 citations81
US8016078B2Sep 13, 2011
Electrician's ladder and method
WERNER CO4 citations71
US10697239B2Jun 30, 2020
Electrician's ladder and method
WERNER CO0 citations49
DANGROW JOSEPH C
4 patentsUS8616336B2Dec 31, 2013
Method for a ladder with a ladder leveler
DANGROW JOSEPH C5 citations82
US8261882B2Sep 11, 2012
Ladder leveler and method
DANGROW JOSEPH C5 citations71
US8256573B2Sep 4, 2012
Ladder leveler and method
DANGROW JOSEPH C3 citations60
US10760337B2Sep 1, 2020
Ladder leveler and method
DANGROW JOSEPH C0 citations50