Inventor
BUTTENHOFF ALAN F
US4 patents
Patents
4 patentsUS10684204B2Jun 16, 2020
Devices, systems and method for flooring performance testing
COLUMBIA INSURANCE CO1 citations69
US12105061B2Oct 1, 2024
Devices, systems and method for flooring performance testing
COLUMBIA INSURANCE CO0 citations59
US11371922B2Jun 28, 2022
Devices, systems and method for flooring performance testing
COLUMBIA INSURANCE CO0 citations59
US9766171B2Sep 19, 2017
Devices, systems and method for flooring performance testing
COLUMBIA INSURANCE CO1 citations59