IP Library Assignment 073323/0244
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
Patent: 7,851,585 →
Application: 12/288,036 →
Publication: US 2009/0105426
Static Dissipative Polyacetal Compositions
Patent: 8,128,845 →
Application: 12/515,411 →
Publication: US 2010/0084617
Polyoxymethylene Compositions and Articles Made from These
Patent: 8,188,169 →
Application: 12/547,986 →
Publication: US 2010/0056673
Polyoxymethylene Compositions and Articles Made from These
Patent: 8,138,247 →
Application: 12/548,672 →
Publication: US 2010/0056698
Process for Making Thermally Resistant Mineral-Filled Polyacetal
Patent: 8,163,812 →
Application: 12/628,462 →
Publication: US 2010/0142676
Polyoxymethylene Modified with Imidized Acrylic Resins
Patent: 8,445,089 →
Application: 13/306,757 →
Publication: US 2013/0136881
Polyoxymethylene Compositions with Branched Polymers
Patent: 9,109,112 →
Application: 13/703,059 →
Publication: US 2013/0142978
Polyoxymethylene Compositions
Patent: 9,006,322 →
Application: 14/248,617 →
Thermally Stable Polyoxymethylene Compositions
Application: 15/106,079 →
Publication: US 2016/0319123
Polyoxymethylene Compositions
Application: 15/789,203 →
Publication: US 2018/0142095
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 →