IP Library Assignment 062467/0870
Patent Assignment
Reel/Frame 062467/0870

Assignment of Assignor's Interest

Recorded: 2023-01-24 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: 17/568,265 →
Related Assignments (1)
Other recorded transfers of the patent in this record — the chain of ownership.
Assignment of Assignor's Interest Sep 3, 2025
From: HOLCIM TECHNOLOGY LTD
To: AMRIZE TECHNOLOGY SWITZERLAND LLC
Reel/Frame 072793/0227 →