IP Library Assignment 049609/0118
Patent Assignment
Reel/Frame 049609/0118

Assignment of Assignor's Interest

Recorded: 2019-06-27 Pages: 6
Assignors
LETTS, JOHN B.
Executed: 2019-01-31
YAO, CHUNHUA
Executed: 2019-01-31
HUBBARD, MICHAEL J.
Executed: 2019-06-21
Assignee
FIRESTONE BUILDING PRODUCTS COMPANY, LLC
200 4TH AVENUE SOUTH, NASHVILLE, TENNESSEE, 37201
Covered Property (1)
Isocyanate-Based Foam Construction Boards
Application: 16/209,038 →
Related Assignments (2)
Other recorded transfers of the patent in this record — the chain of ownership.
Assignment of Assignor's Interest Jul 26, 2022
From: FIRESTONE BUILDING PRODUCTS COMPANY, LLC
To: HOLCIM TECHNOLOGY LTD
Reel/Frame 060927/0468 →
Assignment of Assignor's Interest Sep 2, 2025
From: HOLCIM TECHNOLOGY LTD
To: AMRIZE TECHNOLOGY SWITZERLAND LLC
Reel/Frame 072795/0105 →