Inventor

BELL ROBERT MATTHEW

US3 patents

⚠️ This page may combine multiple inventors who share the name “BELL ROBERT MATTHEW”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.

YALE SECURITY INC

2 patents

US10253540B2Apr 9, 2019

Apparatus for connecting door closer or operator to swing door

YALE SECURITY INC17 citations91

US10024094B2Jul 17, 2018

Apparatus for connecting door closer or operator to swing door

YALE SECURITY INC15 citations81

BELL ROBERT MATTHEW

1 patent

US8732905B2May 27, 2014

Door or window closer

BELL ROBERT MATTHEW22 citations84