RL

Richard J. Langham

📍 Salford, GB: #14 of 43 inventorsTop 35%
Overall (All Time): #2,342,570 of 4,157,543Top 60%
2
Patents All Time

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
4714285 Fire-break door — 1987-12-22
4663204 Element from intumescent fire-proof composition, and specific method for preparing same — 1987-05-05