Patent Assignment
Reel/Frame 019750/0771
Assignment of Assignor's Interest
Recorded: 2007-08-27
Pages: 6
Assignors
ZHANG, QINGCHUN
Executed: 2007-06-27
RYU, SEI-HYUNG
Executed: 2007-06-13
JONAS, CHARLOTTE
Executed: 2007-06-27
AGARWAL, ANANT K.
Executed: 2007-06-27
Assignee
CREE, INC.
4600 SILICON DRIVE, DURHAM, NORTH CAROLINA, 27703
Covered Property
(1)
High Power Insulated Gate Bipolar Transistors
Related Assignments
(8)
Other recorded transfers of the patent in this record — the chain of ownership.
Confirmatory License
Oct 31, 2012
From: CREE INCORPORATED
To: NAVY, SECRETARY OF THE UNITED STATES OF AMERICA
Reel/Frame 029342/0046 →
Security Interest
Jun 30, 2023
From: WOLFSPEED, INC.
To: U.S. BANK TRUST COMPANY, NATIONAL ASSOCIATION
Reel/Frame 064185/0755 →
Notice of Grant of Security Interest in Intellectual Property
Sep 30, 2025
From: WOLFSPEED, INC.
To: U.S. BANK TRUST COMPANY, NATIONAL ASSOCIATION, AS COLLATERAL AGENT
Reel/Frame 072992/0113 →
Notice of Grant of Security Interest in Intellectual Property
Sep 30, 2025
From: WOLFSPEED, INC.
To: U.S. BANK TRUST COMPANY, NATIONAL ASSOCIATION, AS COLLATERAL AGENT
Reel/Frame 072992/0381 →
Notice of Grant of Security Interest in Intellectual Property
Sep 30, 2025
From: WOLFSPEED, INC.
To: U.S. BANK TRUST COMPANY, NATIONAL ASSOCIATION, AS COLLATERAL AGENT
Reel/Frame 072992/0467 →
Notice of Grant of Security Interest in Intellectual Property
Sep 30, 2025
From: WOLFSPEED, INC.
To: U.S. BANK TRUST COMPANY, NATIONAL ASSOCIATION, AS COLLATERAL AGENT
Reel/Frame 072992/0588 →
Release of Security Interest in Intellectual Property Collateral at Reel/Frame No. 64185/0755
Sep 30, 2025
From: U.S. BANK TRUST COMPANY, NATIONAL ASSOCIATION, AS COLLATERAL AGENT
To: WOLFSPEED, INC.
Reel/Frame 072989/0001 →
Notice of Grant of Security Interest in Intellectual Property
Mar 26, 2026
From: WOLFSPEED, INC.
To: U.S. BANK TRUST COMPANY, NATIONAL ASSOCIATION, AS COLLATERAL AGENT
Reel/Frame 075280/0919 →