IP Library Assignment 067677/0925
Patent Assignment
Reel/Frame 067677/0925

Assignment of Assignor's Interest

Recorded: 2024-06-10 Pages: 4
Assignors
LETTS, JOHN B.
Executed: 2019-02-14
YAO, CHUNHUA
Executed: 2019-02-12
HUBBARD, MICHAEL J.
Executed: 2019-02-15
Assignee
FIRESTONE BUILDING PRODUCTS COMPANY, LLC
200 4TH AVENUE SOUTH, NASHVILLE, TENNESSEE, 37201
Covered Property (1)
Process for Producing Isocyanate-Based Foam Construction Boards
Application: 18/739,159 →
Publication: US 2024/0327592
Related Assignments (2)
Other recorded transfers of the patent in this record — the chain of ownership.
Assignment of Assignor's Interest Jun 10, 2024
From: FIRESTONE BUILDING PRODUCTS COMPANY, LLC
To: HOLCIM TECHNOLOGY LTD
Reel/Frame 067677/0951 →
Assignment of Assignor's Interest Sep 3, 2025
From: HOLCIM TECHNOLOGY LTD
To: AMRIZE TECHNOLOGY SWITZERLAND LLC
Reel/Frame 072793/0227 →