WF

William A. Frank

UI Usg Interiors: 2 patents #4 of 15Top 30%
📍 Lake Villa, IL: #6 of 27 inventorsTop 25%
🗺 Illinois: #1,344 of 7,998 inventorsTop 20%
Overall (2018): #90,945 of 503,207Top 20%
2
Patents 2018

Issued Patents 2018

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
9909310 Mineral fiber based ceiling tile Matthew T. Langdon, Wenqi Luan, Martin W. Brown 2018-03-06
9896807 Acoustical ceiling tile Mark H. Englert 2018-02-20