Inventor

SOPKO ALLEN

US4 patents

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

FIRESTONE BUILDING PROD CO LLC

2 patents

US9523203B2Dec 20, 2016

Fire-resistant roof system and membrane composite

FIRESTONE BUILDING PROD CO LLC10 citations82

US11168479B2Nov 9, 2021

Fire-resistant roof system and membrane composite

FIRESTONE BUILDING PROD CO LLC1 citations61

LETTS JOHN B

1 patent

US9856651B2Jan 2, 2018

Fastening plate assembly

LETTS JOHN B2 citations69

HOLCIM TECHNOLOGY LTD

1 patent

US12247399B2Mar 11, 2025

Fire-resistant roof system and membrane composite

HOLCIM TECHNOLOGY LTD0 citations61