Inventor
LEWAN DEREK
US5 patents
⚠️ This page may combine multiple inventors who share the name “LEWAN DEREK”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
RITE HITE HOLDING CORP
4 patentsUS11952825B2Apr 9, 2024
Methods and apparatus to monitor and/or adjust operations of doors
RITE HITE HOLDING CORP5 citations78
US11085230B2Aug 10, 2021
Insulated doors with restorable breakaway sections
RITE HITE HOLDING CORP4 citations71
US10494858B2Dec 3, 2019
Insulated doors with restorable breakaway sections
RITE HITE HOLDING CORP3 citations71
US12359493B2Jul 15, 2025
Methods and apparatus to monitor and/or adjust operations of doors
RITE HITE HOLDING CORP0 citations55