Norit Americas, Inc. vs. Calgon Carbon Corporation et al.

Explore the PTAB proceeding PGR2026-00071 filed by Norit Americas, Inc. on 2026-08-21. This includes filing dates, application numbers, tech centers, patent numbers, and current case status.

Proceeding Overview

Proceeding Number

PGR2026-00071

Filing Date

2026-08-21

Accorded Filing Date

2026-08-21

Institution Decision Date

—

Last Modified Date

2026-09-11

Proceeding Type

PGR

Termination Date

—

Trial Status

Pending

Parties & Counsel

Petitioner

Norit Americas, Inc.

Represented By

Muldoon, Patricket al

Patent Owner / Respondent

Calgon Carbon Corporation et al.

Represented By

Heintz, Jameset al

Tribunal & Venue

Tribunal

Patent Trial and Appeal Board (USPTO)

Technology Center

TC 1700 - Chemical & Materials Engineering

Patent Information

1 Patent Involved

Respondent Application Number 18442503

Respondent Patent Number 12478948

External Links

Espacenet

Google Patents

Respondent Inventor Rebecca L. DISTEFANO et al

Respondent Tech Center TC 1700 - Chemical & Materials Engineering

Address and Attorney/Agent Information

14 Registered Practitioners

Power of Attorney & Correspondence

Firm / Entity Name DLA Piper LLP/ CCC-Pittsburgh

Customer Number 93724

Address 1650 MARKET ST, STE 5000, PHILADELPHIA, PA, 19103-7348, UNITED STATES

Attorney / Agent Information

Reg #	Name	Phone
31750	Thomas Christenbury	215-656-3381
38347	Lisa Haile	858-677-1456
42891	Raymond Miller	412-454-5000
42982	Michael Patane	609-505-8283
50229	Nancy Endejann	215-656-2490
54163	Joseph Helmsen	215-656-2480
54984	Pamela Hwang	858-677-1473
59051	Larissa Bifano	617-406-6013
68827	Pierre Santerre Queiroz De Olive	412-454-5878
75410	Gregory Frattini	215-656-3300
76979	Nicholas Kokkinos	215-656-3300
79855	Douglas Kayuha	614-440-6485
79947	Emma Holland	215-656-3366
81026	Alisa Ramakrishnan	215-656-3390

Proceeding Documents

Notice: Mandatory Notice NOTICE

2026-09-11 FILING PARTY: PATENT OWNER

Download

1033

EX-1033 PERFLUORINATED COMPOUNDS (PFCS), PERFLUOROOCTANE SULFONATE (PFOS) AND PERFLUOROOCTANOIC ACID (PFOA) Exhibit

2026-09-08 FILING PARTY: PETITIONER

Download

Petitioner's Notice of Correction of Exhibit 1033 NOTICE

2026-09-08 FILING PARTY: PETITIONER

Download

Notice: Notice filing date accorded NOTICE

2026-09-03 FILING PARTY: BOARD

Download

1012

EX-1012 Watanabe, N., et al. Residual organic fluorinated compounds Exhibit

2026-08-21 FILING PARTY: PETITIONER

Download

Norit Americas, Inc. vs. Calgon Carbon Corporation et al.

Proceeding Overview

Parties & Counsel

Petitioner

Norit Americas, Inc.

Represented By

Patent Owner / Respondent

Calgon Carbon Corporation et al.

Represented By

Tribunal & Venue

Patent Information

Address and Attorney/Agent Information

Power of Attorney & Correspondence

Attorney / Agent Information

Proceeding Documents

Notice: Mandatory Notice NOTICE

EX-1033 PERFLUORINATED COMPOUNDS (PFCS), PERFLUOROOCTANE SULFONATE (PFOS) AND PERFLUOROOCTANOIC ACID (PFOA) Exhibit

Petitioner's Notice of Correction of Exhibit 1033 NOTICE

Notice: Notice filing date accorded NOTICE

EX-1012 Watanabe, N., et al. Residual organic fluorinated compounds Exhibit

EX-1034 CUSTOM MUNICIPAL REACTIVATED CARBON Exhibit

EX-1026 Nanofiltration and granular activated carbon treatment Exhibit

Petition: as filed PETITION

EX-1019 Changes in GAC Pore Structure During Full-Scale Water Treatment Exhibit

EX-1029 PFAS - Per- and Polyfluoroalkyl Substances: References Exhibit

EX-1014 Reactivation Services FAQ Exhibit

EX-1003 Declaration of Petitioner’s Expert John Bergendahl Exhibit

EX-1033 PERFLUORINATED COMPOUNDS (PFCS), PERFLUOROOCTANE SULFONATE (PFOS) Exhibit

EX-1043 Theory and Practice of Water and Wastewater Treatment Exhibit

EX-1011 Cannon, F.S., et al. Effect of Calcium in Field-Spent GACs on Pore Exhibit

EX-1006 McDougall, G.J. “The Physical Nature and Manufacture of Activated Exhibit

EX-1022 Granular Activated Carbon Treatment Exhibit

EX-1002 File History for U.S. Patent No. 12,478,948 Exhibit

EX-1017 Use of Carbon Adsorption in Groundwater Treatment Exhibit

EX-1040 Expert Declaration of Ingrid Hsieh-Yee Exhibit

EX-1001 U.S. Patent No. 12,478,948 Exhibit

EX-1020 Effect of Calcium on Thermal Regeneration of GAC Exhibit

EX-1023 History and Use of Per- and Polyfluoroalkyl Substances (PFAS) Exhibit

EX-1042 File history of U.S. Pat. Appl. Ser. No. 16/839,862 Exhibit

EX-1039 Go Green – Custom Reactivation of Activated Carbon for Drinking Exhibit

EX-1007 Mimna, Richard, “Granular Activated Carbon: A Proven Solution Exhibit

EX-1038 Carbon Adsorption & Reactivation Exhibit

EX-1035 Standard Test Method for Total Ash Content of Activated Carbon Exhibit

EX-1028 Industry Affiliates Program Exhibit

EX-1027 Reactivation Services FAQ (2008) Exhibit

EX-1016 EPA Facts About Activated Carbon Treatment Exhibit

EX-1009 Appleman, T. D., et al. Treatment of poly- and perfluoroalkyl Exhibit

EX-1015 Activated Carbon Principles Exhibit

EX-1024 The removal of short-chain and long-chain perfluoroalkyl acids Exhibit

EX-1030 PERFLUORINATED COMPOUNDS (PFCS), PERFLUOROOCTANE SULFONATE (PFOS) Exhibit

EX-1005 Mueller, R., et al. “Remediation Technologies Exhibit

EX-1010 U.S. Patent No. 4,038,301 (“Otto”) Exhibit

EX-1013 Comparison of Activated Carbons for Removal of Perfluorinated Exhibit

Notice: Power of Attorney NOTICE

EX-1032 PFAS TREATMENT: PROTECTING WHAT MATTERS Exhibit

EX-1018 Regeneration of Spent Granular Activated Carbon Exhibit

EX-1025 Chemical Publishing Company Inc. Exhibit

EX-1041 U.S. Pat. No. 11,911,743 Exhibit

EX-1031 Granular activated carbon: a proven solution of PFAS treatment Exhibit

EX-1008 Infosheet-Reactivation Services Exhibit

EX-1004 Kempisty, D.M., et al. Perfluoroalkyl Substances in the Environment Exhibit

EX-1037 Reactivation of Granular Activated Carbon Exhibit

EX-1021 Reaction Mechanism Of Calcium-Catalyzed Thermal Regeneration Exhibit

EX-1036 Groundwater Quality and Groundwater Pollution Exhibit