IP Library Assignment 070633/0651
Patent Assignment
Reel/Frame 070633/0651

Assignment of Assignor's Interest

Recorded: 2025-03-26 Pages: 3
Assignors
LETTS, JOHN B.
Executed: 2022-12-07
YAO, CHUNHUA
Executed: 2022-12-07
Assignee
HOLCIM TECHNOLOGY LTD
GRAFENAUWEG 10, 6300 ZUG, SWITZERLAND
Covered Property (1)
Process for Producing Isocyanate-Based Foam Construction Boards
Application: 19/089,401 →
Publication: US 2025/0222636
Related Assignments (2)
Other recorded transfers of the patent in this record — the chain of ownership.
Assignment of Assignor's Interest Jun 10, 2025
From: LETTS, JOHN B.; YAO, CHUNHUA
To: HOLCIM TECHNOLOGY LTD
Reel/Frame 071372/0662 →
Assignment of Assignor's Interest Sep 3, 2025
From: HOLCIM TECHNOLOGY LTD
To: AMRIZE TECHNOLOGY SWITZERLAND LLC
Reel/Frame 072793/0227 →