Patent Assignment
Reel/Frame 073323/0244
Assignment of Assignor's Interest
Recorded: 2025-12-29
Pages: 6
Assignor
DUPONT POLYMERS, INC.
Executed: 2025-12-01
Assignee
DELRIN USA, LLC
BUILDING 308, EXPERIMENTAL STATION, 200 POWDER MILL RD, WILMINGTON, DELAWARE, 19803
Covered Properties
(10)
Polyacetal Compositions with Improved Tribological Properties
Static Dissipative Polyacetal Compositions
Polyoxymethylene Compositions and Articles Made from These
Polyoxymethylene Compositions and Articles Made from These
Process for Making Thermally Resistant Mineral-Filled Polyacetal
Polyoxymethylene Modified with Imidized Acrylic Resins
Polyoxymethylene Compositions with Branched Polymers
Polyoxymethylene Compositions
Patent:
9,006,322 →
Application:
14/248,617 →
Thermally Stable Polyoxymethylene Compositions
Polyoxymethylene Compositions
Related Assignments
(12)
Other recorded transfers of the patents in this record — the chain of ownership.
Assignment of Assignor's Interest
May 9, 2014
From: WILCZEK, LECH; RATNAGIRI, RAMABHADRA
To: E. I. DUPONT DE NEMOURS AND COMPANY
Reel/Frame 032861/0237 →
Assignment of Assignor's Interest
Jun 7, 2015
From: WILCZEK, LECH; RATNAGIRI, RAMABHADRA
To: E. I. DU PONT DE NEMOURS AND COMPANY
Reel/Frame 035798/0586 →
Assignment of Assignor's Interest
Aug 3, 2016
From: KATO, MAKOTO
To: E. I. DU PONT DE NEMOURS AND COMPANY
Reel/Frame 039332/0572 →
Assignment of Assignor's Interest
Nov 20, 2017
From: RATNAGIRI, RAMABHADRA
To: E. I. DU PONT DE NEMOURS AND COMPANY
Reel/Frame 044178/0333 →
Assignment of Assignor's Interest
Jun 25, 2019
From: E. I. DU PONT DE NEMOURS AND COMPANY
To: DUPONT POLYMERS, INC.
Reel/Frame 049587/0098 →
Assignment of Assignor's Interest
Jun 26, 2019
From: E. I. DU PONT DE NEMOURS AND COMPANY
To: DUPONT POLYMERS, INC.
Reel/Frame 049590/0650 →
Assignment of Assignor's Interest
Aug 18, 2023
From: FAN, XIYUN SERENE; RATNAGIRI, RAMABHADRA
To: E.I. DU PONT DE NEMOURS AND COMPANY
Reel/Frame 064636/0121 →
Security Interest
Nov 2, 2023
From: DELRIN USA, LLC
To: GOLDMAN SACHS BANK USA, AS COLLATERAL AGENT
Reel/Frame 065441/0937 →
Change of Address
Sep 6, 2024
From: DUPONT POLYMERS, INC.
To: DUPONT POLYMERS, INC.
Reel/Frame 068859/0287 →
Nunc Pro Tunc Assignment
Sep 6, 2024
From: DUPONT POLYMERS, INC.
To: DUPONT POLYMERS, INC.
Reel/Frame 068512/0400 →
Nunc Pro Tunc Assignment
Nov 6, 2025
From: DUPONT POLYMERS, INC.
To: DUPONT SPECIALTY PRODUCTS USA, LLC
Reel/Frame 072805/0695 →
Assignment of Assignor's Interest
Jan 30, 2026
From: DUPONT SPECIALTY PRODUCTS USA, LLC
To: DELRIN USA, LLC
Reel/Frame 073646/0043 →