Inventor
KIEFFER MITCHELL I
US19 patents
⚠️ This page may combine multiple inventors who share the name “KIEFFER MITCHELL I”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
CORE DISTRIB INC
13 patentsUS9416591B2Aug 16, 2016
Telescoping ladder with stabilizers
CORE DISTRIB INC24 citations93
USD624200SSep 21, 2010
Step ladder
CORE DISTRIB INC25 citations91
US6708800B2Mar 23, 2004
Extending ladder and associated manufacturing methods
CORE DISTRIB INC31 citations89
US10233692B2Mar 19, 2019
Foldable ladder
CORE DISTRIB INC16 citations84
US9580959B2Feb 28, 2017
Foldable ladder
CORE DISTRIB INC15 citations82
US11174678B2Nov 16, 2021
Locking assembly for a telescoping ladder
CORE DISTRIB INC5 citations72
US10753149B2Aug 25, 2020
Extendable / retractable ladder
CORE DISTRIB INC2 citations71
US10053912B2Aug 21, 2018
Extendable / retractable ladder
CORE DISTRIB INC3 citations71
USD767784SSep 27, 2016
Hinge for a telescoping stepladder
CORE DISTRIB INC5 citations71
US11795760B2Oct 24, 2023
Ladder tripod assembly and system
CORE DISTRIB INC1 citations61
US10731413B2Aug 4, 2020
Foldable ladder
CORE DISTRIB INC1 citations61
USD593685SJun 2, 2009
Telescoping ladder rung
CORE DISTRIB INC5 citations57
US10995547B2May 4, 2021
Telescoping ladder with a cascading collapse mechanism
CORE DISTRIB INC0 citations51
KIEFFER MITCHELL I
4 patentsUS8225906B2Jul 24, 2012
Extendable/retractable ladder
KIEFFER MITCHELL I18 citations90
US8387753B2Mar 5, 2013
Ergonomic extendable/retractable ladder
KIEFFER MITCHELL I23 citations89
USD665927SAug 21, 2012
Metal and wood step ladder
KIEFFER MITCHELL I6 citations75
USD684278SJun 11, 2013
Collapsible five legged stepstool
KIEFFER MITCHELL I7 citations73