JL

John B. Letts

HT Holcim Technology: 5 patents #1 of 28Top 4%
📍 Carmel, IN: #10 of 164 inventorsTop 7%
🗺 Indiana: #72 of 2,804 inventorsTop 3%
Overall (2025): #23,007 of 469,880Top 5%
5
Patents 2025

Issued Patents 2025

Showing 1–5 of 5 patents

Patent #TitleCo-InventorsDate
12358190 Process to yield foam construction boards with low surface irregularities Chunhua Yao, Mark Holtman 2025-07-15
12337581 Construction boards with foil-containing facers Jiansheng Tang, Michael J. Hubbard 2025-06-24
12305385 Process for encapsulating fragile insulation materials within polyisocyanurate Michael J. Hubbard 2025-05-20
12291620 Isocyanate-based foam construction boards Chunhua Yao, Michael J. Hubbard 2025-05-06
12263622 Process for producing isocyanate-based foam construction boards Chunhua Yao 2025-04-01