Patent Assignment
Reel/Frame 067507/0389
Assignment of Assignor's Interest
Recorded: 2024-05-23
Pages: 5
Assignor
FIRESTONE BUILDING PRODUCTS COMPANY, LLC
Executed: 2022-04-04
Assignee
HOLCIM TECHNOLOGY LTD
GRAFENAUWEG 10, 6300 ZUG, SWITZERLAND
Covered Property
(1)
Process for Producing Isocyanate-Based Foam Construction Boards
Application:
18/671,552 →
Publication:
US 2024/0309160
Related Assignments
(2)
Other recorded transfers of the patent in this record — the chain of ownership.
Assignment of Assignor's Interest
May 23, 2024
From: LETTS, JOHN; YAO, CHUNHUA; HUBBARD, MICHAEL
To: FIRESTONE BUILDING PRODUCTS COMPANY, LLC
Reel/Frame 067507/0243 →
Assignment of Assignor's Interest
Sep 3, 2025
From: HOLCIM TECHNOLOGY LTD
To: AMRIZE TECHNOLOGY SWITZERLAND LLC
Reel/Frame 072793/0227 →