Process for producing isocyanate-based foam construction boards
US-2024309160-A1 · Sep 19, 2024 · US
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Letts John patents
Letts John is listed as an inventor on 12 patents in our database. Major assignees and classification codes are summarized below.
| Metric | Value |
|---|---|
| Inventor | Letts John |
| Total patents | 12 |
| First publication | Dec 29, 2015 |
| Latest publication | Sep 19, 2024 |
Notable patents
Publications ranked by popularity score, then publication date.
Process for producing isocyanate-based foam construction boards
US-11999833-B2 · Jun 4, 2024 · US
Process for producing isocyanate-based foam construction boards
US-11174364-B2 · Nov 16, 2021 · US
Construction boards with coated inorganic facer
US-2020011050-A1 · Jan 9, 2020 · US
Construction boards with coated inorganic facer
US-10450741-B2 · Oct 22, 2019 · US
Foam construction boards with expandable graphite
US-2019061313-A1 · Feb 28, 2019 · US
Process for producing isocyanate-based foam construction boards
US-2018355136-A1 · Dec 13, 2018 · US
Construction boards with coated inorganic facer
US-2018320366-A1 · Nov 8, 2018 · US
Construction boards with coated inorganic facer
US-10000922-B1 · Jun 19, 2018 · US
Insulation devices including vacuum-insulated capsules
US-2017335563-A1 · Nov 23, 2017 · US
Recent patents
Latest publications not already listed above.
Major assignees
Companies most often associated with this inventor's publications.
| Assignee | Patents |
|---|---|
| Firestone Building Prod Co Llc | 11 |
| Holcim Technology Ltd | 2 |
Top CPC classifications
Most common classification codes across this inventor's patents.
| CPC | Patents |
|---|---|
| B32B2307/3065 | 6 |
| B32B2419/06 | 6 |
| B32B2266/08 | 6 |
| C08J2203/14 | 6 |
| B32B2266/0278 | 6 |