Clearwater Paper Corporation vs. Christopher S. Cleveland et al (Inventor)

Explore the PTAB proceeding IPR2025-00878 filed by Clearwater Paper Corporation on 2025-04-21. This includes filing dates, application numbers, tech centers, patent numbers, and current case status.

Proceeding Overview

Proceeding Number

IPR2025-00878

Filing Date

2025-04-21

Accorded Filing Date

2025-04-30

Institution Decision Date

2025-11-10

Last Modified Date

2026-09-23

Proceeding Type

IPR

Termination Date

2026-09-23

Trial Status

Final Written Decision

Parties & Counsel

Petitioner

Clearwater Paper Corporation

Represented By

Stein, Jameset al

Patent Owner / Respondent

Christopher S. Cleveland et al (Inventor)

Represented By

—

Tribunal & Venue

Tribunal

Patent Trial and Appeal Board (USPTO)

Technology Center

TC 1700 - Chemical & Materials Engineering

Patent Information

1 Patent Involved

Respondent Application Number 11348150

Respondent Patent Number 8637126

External Links

Espacenet

Google Patents

Respondent Inventor Christopher S. Cleveland et al

Respondent Tech Center TC 1700 - Chemical & Materials Engineering

Address and Attorney/Agent Information

1 Registered Practitioner

Power of Attorney & Correspondence

Firm / Entity Name INTERNATIONAL PAPER COMPANY

Customer Number 1726

Address 6400 Poplar Avenue, Tower IV - 9th Floor, Legal Department: Intellectual Property, Memphis, TN, 38197, UNITED STATES

Attorney / Agent Information

Reg #	Name	Phone
62530	Clifford Lamar Ii	901-419-2777

Proceeding Documents

Final Written Decision: original FINAL

2026-09-23 FILING PARTY: BOARD

Download

Panel Change Order ORDER

2026-06-22 FILING PARTY: BOARD

Download

Scheduling Order ORDER

2025-11-10 FILING PARTY: BOARD

Download

Decision Granting Institution of Inter Partes Review DECISION

2025-11-10 FILING PARTY: BOARD

Download

Notice: Referral to Board Panel NOTICE

2025-07-30 FILING PARTY: BOARD

Download

Clearwater Paper Corporation vs. Christopher S. Cleveland et al (Inventor)

Proceeding Overview

Parties & Counsel

Petitioner

Clearwater Paper Corporation

Represented By

Patent Owner / Respondent

Christopher S. Cleveland et al (Inventor)

Represented By

Tribunal & Venue

Patent Information

Address and Attorney/Agent Information

Power of Attorney & Correspondence

Attorney / Agent Information

Proceeding Documents

Final Written Decision: original FINAL

Panel Change Order ORDER

Scheduling Order ORDER

Decision Granting Institution of Inter Partes Review DECISION

Notice: Referral to Board Panel NOTICE

Notice: Notice filing date accorded NOTICE

Revised Petition for Inter Partes Review of U.S. Patent No. 8,637,126 PETITION

EX1003_Revised Declaration of Dr. Karl Englund Exhibit

EX1003_Declaration of Dr. Karl Englund Exhibit

EX1009_U.S. Patent No. 5,213,858 Tanner Exhibit

EX1019_Eastar Bio/Ecoflex Wikipedia page and ecoflex brochure Exhibit

EX1018_U.S. Patent Appl Publ No 2004/0014883 Yamamoto Exhibit

EX1021_Kale Exhibit

EX1002 (Part 1 of 3)_File History of U.S. Patent No. 8,637,126 Exhibit

EX1012_U.S. Patent No. 6,183,814 Nangeroni Exhibit

EX1013_U.S. Patent No. 3,984,940 Reich Exhibit

EX1020_Trinh Tan Exhibit

EX1008_Certified Translation of Nakagawa Exhibit

EX1023_ASTM D6868 - 21 Exhibit

EX1002 (Part 2 of 3)_File History of U.S. Patent No. 8,637,126 Exhibit

EX1011_U.S. Patent Appl Publ No. US 2005/0008800 A1 Andersson Exhibit

EX1022_ASTM D6400 - 23 Exhibit

EX1007_Japanese Patent Appl Publ No. JP H6-62944 A Nakagawa Exhibit

EX1025_Biomax PlasticsNet Exhibit

EX1005_U.S. Patent Appl Publ No. US 2006/0051603 Cleveland Exhibit

EX1010_All About Wax Coated Packaging Exhibit

EX1015_U.S. Patent No. 6,025,028 Asrar Exhibit

EX1024_Rivera-Briso Exhibit

Notice: Power of Attorney NOTICE

EX1017_JP 2003-13391 and Certified Translation Yamawaki Exhibit

EX1002 (Part 3 of 3)_File History of U.S. Patent No. 8,637,126 Exhibit

EX1014_U.S. Patent No. 6,040,063 Doane Exhibit

Petition: as filed PETITION

EX1001_U.S. Patent No. 8,637,126 Exhibit

EX1016_U.S. Patent No. 6,645,584 Kuusipalo Exhibit

EX1004_Curriculum Vitae of Dr. Karl Englund Exhibit

EX1006_U.S. Provisional Appl No. 60/608,258 Cleveland Exhibit