JL

John B. Letts

FC Firestone Building Products Company: 12 patents #6 of 68Top 9%
HT Holcim Technology: 9 patents #3 of 137Top 3%
BF Bridgestone Firestone: 4 patents #43 of 276Top 20%
BP Bfs Diversified Products: 4 patents #5 of 69Top 8%
Bridgestone: 1 patents #1,586 of 2,860Top 60%
Shell Oil Compny: 1 patents #2,223 of 4,423Top 55%
UC Union Carbide: 1 patents #697 of 1,402Top 50%
📍 Carmel, IN: #52 of 1,387 inventorsTop 4%
🗺 Indiana: #626 of 33,936 inventorsTop 2%
Overall (All Time): #100,590 of 4,157,543Top 3%
34
Patents All Time

Issued Patents All Time

Showing 1–25 of 34 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
12006414 Process for producing isocyanate-based foam construction boards Chunhua Yao, Michael J. Hubbard 2024-06-11
11999833 Process for producing isocyanate-based foam construction boards Chunhua Yao, Michael J. Hubbard 2024-06-04
11913222 Polyisocyanurate coverboards with improved fire resistance Chunhua Yao, Michael J. Hubbard 2024-02-27
11618235 Encapsulated fragile insulation materials Michael J. Hubbard, Chunhua Yao 2023-04-04
11242681 Polyisocyanurate coverboards with improved fire resistance Chunhua Yao, Michael J. Hubbard 2022-02-08
11174364 Process for producing isocyanate-based foam construction boards Chunhua Yao, Michael J. Hubbard 2021-11-16
10870987 Isocyanate-based foam construction boards Chunhua Yao, Michael J. Hubbard 2020-12-22
10611066 Process for encapsulating fragile insulation materials within polyisocyanurate Michael J. Hubbard 2020-04-07
10450741 Construction boards with coated inorganic facer 2019-10-22
10000922 Construction boards with coated inorganic facer 2018-06-19
9856651 Fastening plate assembly Timothy Tackett, Allen Sopko, Michael James Hubbard, John Geary 2018-01-02
9221234 High density polyurethane and polyisocyanurate construction boards and composite boards Gregory A. Brandt 2015-12-29
8453390 High density polyurethane and polyisocyanurate construction boards and composite boards Gregory A. Brandt 2013-06-04
8153039 Method for producing and monitoring the compressive strength of foam insulation board Timothy Tackett 2012-04-10
8142903 Construction boards with improved facers Robert C. Harrison 2012-03-27
8106106 Insulation boards and methods for their manufacture 2012-01-31
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
7838568 Insulation boards and methods for their manufacture Wayne E. Laughlin, Bruce Miller 2010-11-23
7612120 Insulation boards and methods for their manufacture 2009-11-03