Carmel, Indiana
United States
47
2025-07-15
The entities that hold a legal rights for patent applications filed by inventor Letts John B.:
John B. Letts from Carmel, US has applied for patents for these inventions. The list has both pending applications and granted patents:
Process to yield foam construction boards with low surface irregularities
#2 | 2025-07-10PROCESS FOR PRODUCING ISOCYANATE-BASED FOAM CONSTRUCTION BOARDS
#3 | 2025-04-01Process for producing isocyanate-based foam construction boards
#4 | 2024-10-03PROCESS FOR PRODUCING ISOCYANATE-BASED FOAM CONSTRUCTION BOARDS
#5 | 2024-05-09FOAM CONSTRUCTION BOARDS WITH ENHANCED FIRE PERFORMANCE
#6 | 2023-07-27ENCAPSULATED FRAGILE INSULATION MATERIALS
#7 | 2022-08-11PROCESS FOR PRODUCING ISOCYANATE-BASED FOAM CONSTRUCTION BOARDS
#8 | 2022-05-19Polyisocyanurate coverboards with improved fire resistance
#9 | 2022-03-24CONSTRUCTION BOARDS WITH FOIL-CONTAINING FACERS
#10 | 2022-02-24Process for producing isocyanate-based foam construction boards
#11 | 2022-01-06Encapsulated fragile insulation materials
#12 | 2021-07-01ADHESIVE-BACKED COMPOSITE INSULATION BOARDS WITH VACUUM-INSULATED CAPSULES
#13 | 2021-04-15Polyisocyanurate coverboards with improved fire resistance
#14 | 2021-04-01Isocyanate-based foam construction boards
#15 | 2020-12-22Isocyanate-based foam construction boards
#16 | 2020-09-24HIGH DENSITY POLYURETHANE AND POLYISOCYANURATE CONSTRUCTION BOARDS AND COMPOSITE BOARDS
#17 | 2020-07-02Process for encapsulating fragile insulation materials within polyisocyanurate
#18 | 2020-02-20FOAM CONSTRUCTION BOARDS WITH ENHANCED FIRE PERFORMANCE
#19 | 2020-01-16PROCESS FOR PRODUCING ISOCYANATE-BASED FOAM CONSTRUCTION BOARDS
#20 | 2019-07-25PROCESS FOR PRODUCING ISOCYANATE-BASED FOAM CONSTRUCTION BOARDS
#21 | 2019-06-27HIGH DENSITY POLYURETHANE AND POLYISOCYANURATE CONSTRUCTION BOARDS AND COMPOSITE BOARDS
#22 | 2019-06-20ADHESIVE-BACKED COMPOSITE INSULATION BOARDS WITH VACUUM-INSULATED CAPSULES
#23 | 2018-11-08POLYISOCYANURATE COVERBOARDS WITH IMPROVED FIRE RESISTANCE
#24 | 2018-03-29HIGH DENSITY POLYURETHANE AND POLYISOCYANURATE CONSTRUCTION BOARDS AND COMPOSITE BOARDS
#25 | 2017-11-16CONSTRUCTION BOARDS WITH COATED FACERS
#26 | 2017-01-19Process for encapsulating fragile insulation materials within polyisocyanurate
#27 | 2016-12-22HIGH DENSITY POLYURETHANE AND POLYISOCYANURATE CONSTRUCTION BOARDS AND COMPOSITE BOARDS
#28 | 2016-06-16CONSTRUCTION BOARDS WITH COATED FACERS
#29 | 2013-06-27CONSTRUCTION BOARDS WITH COATED FACERS
#30 | 2013-02-14HIGH DENSITY POLYURETHANE AND POLYISOCYANURATE CONSTRUCTION BOARDS AND COMPOSITE BOARDS
#31 | 2012-12-13Fastening plate assembly
#32 | 2012-07-05HIGH DENSITY POLYURETHANE AND POLYISOCYANURATE CONSTRUCTION BOARDS AND COMPOSITE BOARDS
#33 | 2012-07-05HIGH DENSITY POLYURETHANE AND POLYISOCYANURATE CONSTRUCTION BOARDS AND COMPOSITE BOARDS
#34 | 2011-09-08HIGH DENSITY POLYURETHANE AND POLYISOCYANURATE CONSTRUCTION BOARDS AND COMPOSITE BOARDS
#35 | 2011-09-08HIGH DENSITY POLYURETHANE AND POLYISOCYANURATE CONSTRUCTION BOARDS AND COMPOSITE BOARDS
#36 | 2011-01-20Insulation boards and methods for their manufacture
#37 | 2010-11-23Insulation boards and methods for their manufacture
#38 | 2010-06-03Construction boards with improved facers
#39 | 2009-12-31INSULATION BOARDS AND METHODS FOR THEIR MANUFACTURE
#40 | 2009-11-03Insulation boards and methods for their manufacture
#41 | 2009-02-19Method for producing and monitoring the compressive strength of foam insulation board
#42 | 2009-02-19Method and apparatus to monitor the compressive strength of insulation boards
#43 | 2007-12-27Mold resistant construction boards and methods for their manufacture
#44 | 2007-04-17Two-part polyurethane adhesive for bonding insulation boards to a roof deck
#45 | 2006-08-17High density polyurethane and polyisocyanurate construction boards and composite boards
#46 | 2006-06-15Tough and durable insulation boards produced in-part with scrap rubber materials and related methods
#47 | 2006-02-09Mold resistant construction boards and methods for their manufacture
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