JL

John B. Letts

📍 Carmel, IN: #17 of 182 inventorsTop 10%
🗺 Indiana: #343 of 2,720 inventorsTop 15%
Overall (2011): #90,312 of 364,097Top 25%
2
Patents 2011

Issued Patents 2011

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
7987730 Method and apparatus to monitor the compressive strength of insulation boards Timothy Tackett 2011-08-02
7972688 High density polyurethane and polyisocyanurate construction boards and composite boards Gregory A. Brandt 2011-07-05