PacifiCorp et al. vs. MES, Inc.
Explore the PTAB proceeding IPR2025-00425 filed by PacifiCorp et al. on 2025-03-04. This includes filing dates, application numbers, tech centers, patent numbers, and current case status.
Proceeding Overview
Proceeding Number
IPR2025-00425
Filing Date
2025-03-04
Accorded Filing Date
2025-03-04
Institution Decision Date
2026-05-26
Last Modified Date
2026-09-09
Proceeding Type
IPR
Termination Date
2026-05-26
Trial Status
Institution Denied
Parties & Counsel
Petitioner
PacifiCorp et al.
Represented By
Tobin, Davidet alPatent Owner / Respondent
MES, Inc.
Represented By
Hamad, Hamadet alTribunal & Venue
Tribunal
Patent Trial and Appeal Board (USPTO)
Technology Center
TC 1700 - Chemical & Materials Engineering
Patent Information
Address and Attorney/Agent Information
Power of Attorney & Correspondence
Attorney / Agent Information
| Reg # | Name | Phone |
|---|---|---|
| 25816 | Michael Schwegman | 612-373-6901 |
| 30568 | Steven Lundberg | 612-373-6900 |
| 30837 | Bradley Forrest | 612-373-6900 |
| 30871 | Michael Lynch | 512-628-9320 |
| 33024 | J Parker | 847-432-7302 |
| 33501 | Eric Gifford | 520-760-1754 |
| 35901 | Pamela Huff | 512-492-4613 |
| 36530 | Gregory Gorrie | 612-371-2191 |
| 36776 | David D'Zurilla | 612-373-6900 |
| 37650 | Janal Kalis | 612-373-6900 |
| 38377 | Marvin Beekman | 612-373-6900 |
| 39610 | Timothy Bianchi | 612-373-6900 |
| 39665 | Janet Embretson | 612-961-7503 |
| 39838 | Russell Slifer | 208-794-3901 |
| 40099 | Tyler Nasiedlak | 612-373-6920 |
| 41246 | Andrew Peret | 262-646-7009 |
| 41388 | Susan Yee | 408-278-4057 |
| 42267 | Suneel Arora | 612-373-6900 |
| 42419 | Frank Cire | 626-221-5465 |
| 42535 | Craig Fischer | 818-436-1338 |
| 42626 | Marc Hanish | 612-373-6900 |
| 42832 | Peter Maki | 612-373-6900 |
| 42989 | Monique Perdok | 612-373-6900 |
| 45229 | Aaron Wininger | 408-278-4059 |
| 45416 | Viet Tong | 612-373-6900 |
| 45535 | Joseph Mehrle | 513-942-0224 |
| 45742 | Anthony Josephson Jr | 919-238-2300 |
| 46193 | Anthony Curtis | 612-373-6900 |
| 46632 | David Cochran | 612-373-6900 |
| 47059 | Bradley Scheer | 408-278-4040 |
| 47857 | David Peterson | 612-373-6900 |
| 48095 | Andre Marais | 408-278-4040 |
| 48200 | Francois Devilliers | 831-419-9589 |
| 48735 | Ricardo Moran | 612-373-6900 |
| 49097 | Thierry Lo | 949--35-4-0200 |
| 51203 | Timothy Paul | 612-373-6900 |
| 51458 | Ognyan Beremski | 612-373-6900 |
| 52036 | Michael Mischnick | 612-359-3270 |
| 53719 | Mark Vatuone | 408-846-8871 |
| 54393 | Steven Reid | 612-371-2185 |
| 54439 | James Shands | 612-373-6900 |
| 54785 | Trevor Lind | 512-492-6408 |
| 55150 | Nathan Elder | 612-373-6900 |
| 55506 | Thomas Obermark | 612-373-6900 |
| 55666 | Zhengnian Tang | 612-373-6965 |
| 55842 | Daniel Mertes | 612-359-3279 |
| 56264 | Christopher Wolfe | 30933006428 |
| 56867 | John Magluyan | 949-757-7124 |
| 57166 | Ronald Gerber | 612-373-2198 |
| 57313 | Garth Vivier | 408-278-4041 |
| 57978 | Adina Loewy | 201-794-1536 |
| 58333 | Gall Gotfried | 917-475-6313 |
| 58351 | Paul Urbanski | 612-373-6900 |
| 58401 | Raquel Pacheco | 612-373-6900 |
| 59215 | Robert Hirning | 612-371-2110 |
| 59481 | Timothy Christman | 612-359-3274 |
| 59660 | Douglas Portnow | 408-660-2979 |
| 59733 | Gregory Grace | 612-373-6900 |
| 59979 | Jose Nunez | 212-336-8001 |
| 60296 | Adam Kiedrowski | 612-373-6900 |
| 60817 | Stephen Komarec | 612--37-3-6927 |
| 60826 | Edward Sandor | 612-373-6900 |
| 60900 | John Fischer | 612-373-6900 |
| 60948 | Nathan Witzany | 612-371-2184 |
| 61123 | Joseph Wang | 415.362.2928 |
| 62649 | David Buck | 612-373-6900 |
| 62660 | Kirt Iverson | 408-660-2016 |
| 62731 | Gregory Stark | 407-841-2343 |
| 63081 | Laurie Young | 612-568-6163 |
| 63561 | James Hallenbeck | 612-373-6938 |
| 63803 | Nicholas Lanzatella | 651-349-9580 |
| 63890 | Eric Andersland | 612-371-2128 |
| 64438 | Jessica Mcdonald | 516-697-4828 |
| 64448 | Brett Klein | 612-604-6392 |
| 64790 | Triet Nguyen | 408-278-4040 |
| 64938 | Adeel Haroon | 612-349-9597 |
| 65338 | Anup Suresh | 408-660-2977 |
| 65481 | Nathan Ellefson | 612-373-6900 |
| 66058 | Domenico Ippolito | 408-278-4040 |
| 66520 | Rigel Menard | 612-371-2136 |
| 66559 | Sabine Volkmer Ward | 612-373-6900 |
| 66685 | Timothy Grathwol | 612-373-6900 |
| 67101 | Justin Mccarthy | 612--35-9-3260 |
| 67888 | Garrett Hall | 408-679-0850 |
| 68464 | Piers Blewett | 404-538-9552 |
| 68912 | Keith Lim | 822-301-6 5040 |
| 68948 | Alexis Liistro | 206-757-8025 |
| 69054 | Joseph Williams | 612-373-6942 |
| 69466 | Jeffrey Cobia | 612-373-6900 |
| 69483 | Christopher Palmisano | 612-373-6926 |
| 70140 | Jacobus Loock | 512-492-6410 |
| 70355 | Eric Little | 612-373-6900 |
| 70481 | William Kalweit | 612-359-3266 |
| 70950 | Ricardo Yepez | 612-373-6900 |
| 71874 | Linh-Han Hoang Nguyen | 612-373-6900 |
| 72357 | Aris Gregorian | 612-373-6900 |
| 72945 | Lucas Hjelle | 612-359-3269 |
| 73344 | Justin Wang | 832-868-8869 |
| 73684 | Eric Bachinski | 612-371-2171 |
| 74294 | Anthony Wilkie | 952-221-3533 |
| 74611 | Ryan Connell | 612-373-6900 |
| 75610 | Dan Li | 612-373-6945 |
| 75730 | Matthew Norwood | 612-373-6900 |
| 76406 | Megha Eswaran | 408-278-4040 |
| 76612 | Philip Alford | 612-373-6900 |
| 77346 | Yuhao Liang | 408-660-2001 |
| 77794 | Anthony Salmo | 612-387-3538 |
| 78632 | Jerome Sundin | 612-359-3261 |
| 800066 | Vanessa Pessoa | 612-373-6900 |
| 80798 | Eric Phillips | 612-371-2180 |
| 81598 | Mark Kallevig | 320-630-4356 |
| 82094 | John Swart | 612-371-2147 |
| L1308 | Jingyuan Nan | 408-660-2986 |
Proceeding Documents
200Ex. 3007 Exhibit
Notice: Erratum NOTICE
Joint Motion to Expunge Confidential Information from the Record MOTION
Notice: refund approved NOTICE
Petitioner's Request for Refund OTHER
Institution Decision: DECISION Denying Institution of Inter Partes Review 35 U.S.C. § 314 DECISION
Notice of Stipulation to Modify Due Dates NOTICE
Petitioner's Motion to Seal MOTION
Ex. 1161 - Colstrip Steam Electric Station - Talen Energy Exhibit
Ex. 1164 - Delaware ECF 279 Exhibit
Ex. 1162 - Delaware ECF 214 Exhibit
Ex. 1166 - Correspondence re Operating Agreement Exhibit
Ex. 1163 - Delaware ECF 253, 263 Exhibit
Ex. 1165 - Delaware ECF 280 Exhibit
Director Review Decision Remanding to the Board DECISION
Exhibit 2063 Exhibit
Exhibit 2057 Exhibit
Patent Owner's Motion to Seal MOTION
Exhibit 2058 Exhibit
ORDER Denying Patent Owner’s Motion to Terminate 37 C.F.R. § 42.5 ORDER
Patent Owner’s Notice of Deposition for David Cabello NOTICE
Patent Owner’s Notice of Deposition for Brad Richards NOTICE
Puget Sound Energy, Colstrip Facts Exhibit
Declaration of Brad Richards Exhibit
Petitioner's Updated Exhibit List NOTICE
Petitioners' Notice of Deposition of J. Edward Cichanowicz NOTICE
Declaration of Jennifer A. McIvor Exhibit
Petitioner's Notice of Taking Corporate Representative Deposition of Patent Owner NOTICE
Patent Owner’s Notice of Deposition for Jennifer A. McIvor NOTICE
Notice of Deposition of John Pavlish NOTICE
ORDER Conduct of Proceeding 37 C.F.R. §§ 42.5, 42.51(b)(2) ORDER
Ex. 3006 Exhibit
Ex, 3103 Email correspondence Exhibit
Petitioners’ Authorized Response to Patent Owner’s Motion to Terminate OTHER
Ex. 3102 Email correspondence Exhibit
Petitioner's Objection to Evidence OTHER
Patent Owner's Motion to Terminate MOTION
Ex. 3006 Exhibit
Patent Owner's Motion to Seal MOTION
Ex. 3004 Exhibit
430 file history_No NPL or Foreign Docs_Part 14 Exhibit
Pavlish IPR declaration Exhibit
430 file history_No NPL or Foreign Docs_Part 4 Exhibit
430 file history_No NPL or Foreign Docs_Part 7 Exhibit
430 file history_No NPL or Foreign Docs_Part 1 Exhibit
430 file history_No NPL or Foreign Docs_Part 8 Exhibit
430 file history_No NPL or Foreign Docs_Part 12 Exhibit
430 file history_No NPL or Foreign Docs_Part 3 Exhibit
430 file history_No NPL or Foreign Docs_Part 10 Exhibit
430 file history_No NPL or Foreign Docs_Part 9 Exhibit
Rebuttal Expert Report of Philip O'Keefe_2022-12-20 Exhibit
Cichanowicz CV Exhibit
Stephen Niksa , PhD Depo Transcript_2025-11-20 Exhibit
430 file history_No NPL or Foreign Docs_Part 11 Exhibit
430 file history_No NPL or Foreign Docs_Part 2 Exhibit
430 file history_No NPL or Foreign Docs_Part 5 Exhibit
Cichanowicz Expert Declaration Exhibit
430 file history_No NPL or Foreign Docs_Part 13 Exhibit
430 file history_No NPL or Foreign Docs_Part 6 Exhibit
MEMORANDUM OPINION ORDER Denying CERT JMOL_Dkt. 0791 Exhibit
ORDER Conduct of Proceeding 37 C.F.R. §§ 42.5, 42.51(b)(2) ORDER
Panel Change Order ORDER
Petitioners’ Authorized Response to Patent Owner’s Motion for Additional Discovery Regarding RPI and Privity Issues OPPOSITION
Notice of Stipulation to Modify Due Dates NOTICE
Ex. 3003 Exhibit
Patent Owner's Authorized Motion for Additional Discovery Regarding RPI and Privity Issues MOTION
Order: Termination as to one party ORDER
Order Denying Patent Owner’s Requests for Director Review without Prejudice and Remanding to the Board for Further Proceedings DECISION
Patent Owner's email requesting authorization to file a motion for additional discovery Exhibit
Public - 2022-10-25 Opening Expert Report of S Niksa_Part2 Exhibit
Redacted - Contract for Purchase of Refined Coal (MEC001916) Exhibit
Redacted - Contract for Purchase of Refined Coal (MEC001747) Exhibit
Redacted - Contract for Purchase of Refined Coal (MEC001954) Exhibit
Redacted Patent Owner's Sur-Reply in Support of Preliminary Response OTHER
Redacted Patent Owner's Preliminary Response OTHER
Redacted - Refined Coal Supply Agreement (ALLIANT-ME2C-004484) Exhibit
Public - 2022-10-25 Opening Expert Report of S Niksa_Part1 Exhibit
Redacted - License and Services Agreement (WEC000001) Exhibit
Redacted - Contract for Purchase of Refined Coal (MEC001832) Exhibit
Redacted - 2024-12-23 0139-007 - Ex.22 - Parts 1 & 2 Exhibit
Authorized Response to Director Review Request OTHER
Request to unseal Institution Decisions Exhibit
Joint Motion to Terminate Proceeding as to MidAmerican Energy Company MOTION
Joint Request to Treat Final Settlement Agreement of Patent Owner and MidAmerican Energy Company as Business Confidential Information MOTION
Patent Owner's Request for Director Review REQUEST
Exhibit 3100 Exhibit
Order: Termination as to one party ORDER
In re: Midwest Energy Emissions Corp. Patent Litig., No. 4:24-MD-03132-SHL-WPK, Order Granting Joint Motions to Stay, 10/13/2025 Exhibit
Petitioners’ Updated Exhibit List OTHER
In re: Midwest Energy Emissions Corp. Patent Litig., No. 4:24-MD-03132-SHL-WPK, Joint Motion to Stay, 10/3/2025 Exhibit
SCHEDULING ORDER ORDER
Institution Decision: Granting Institution of Inter Partes Review 35 U.S.C. sec. 314 DECISION
Joint Request to Treat Final Settlement Agreement of Patent Owner and WEC Energy Group, Inc. as Business Confidential Information MOTION
Joint Motion to Terminate Proceeding as to WEC Energy Group, Inc. MOTION
Order: ORDER Granting Patent Owner’s Motions for Pro Hac Vice Admission of Justin T. Nemunaitis and Richard Cochrane 37 C.F.R. § 42.10(c) ORDER
DECISION Settlement Prior to Institution of Trial and Granting Request to Treat Settlement Agreement as Business Confidential Information 35 U.S.C. § 317; 37 C.F.R. §§ 42.72, 42.74 ORDER
Joint Motion to Treat Final Settlement Agreements of Patent Owner and Interstate Power & Light Co. and Wisconsin Power & Light Co. as Business Confidential Information MOTION
Joint Motion to Terminate Proceeding as to Interstate Power & Light Co. and Wisconsin Power & Light Co. MOTION
Petitioner, PacifiCorp's, Updated Mandatory Notices NOTICE
Petitioner, PacifiCorp's, Power of Attorney NOTICE
Patent Owner's Motion to Seal MOTION
Petitioner's Authorized Reply to Patent Owner's Preliminary Response OTHER
Director Discretionary Decision: Refer RESPONSE
Ex. 3001 IPR2025-00422 -423 -424 -425 -687 -688 Authorization Requested for Additional Briefing Exhibit
PTC Facility Description Exhibit
Midwest Energy Emissions Corp. v. Arthur J. Gallagher & Co., No. 19-1334-RGACJB ECF 130 (D. Del. July 15, 2020) (First Amended Complaint for Patent Infringement) Exhibit
Exhibit A to Plaintiff’s Initial Infringement Contentions (March 18, 2025) served in In re: Midwest Energy Emissions Corp. Patent Litig., No. 4:24-md-03132-SHL-WPK Exhibit
In re: Midwest Energy Emissions Corp. Patent Litig., No. 4:24-md- 03132-SHL-WPK, ECF 111 (S.D. Iowa Apr. 18, 2025) (Order re: Petitioners’ Deadline to File Surreply) Exhibit
1990 Clean Air Act Amendment Summary Exhibit
In re: Midwest Energy Emissions Corp. Patent Litig., No. 4:24-md- 03132-SHL-WPK, ECF 19 (S.D. Iowa Jan 10, 2025) (Order on Motions to Dismiss and Motion to Sever) Exhibit
In re: Midwest Energy Emissions Corp. Patent Litig., No. 4:24-md- 03132-SHL-WPK, ECF 129 (S.D. Iowa May 21, 2025) (Petitioners’ Reply Brief In Support of Motion to Stay Pending Inter Partes Review) Exhibit
What EPA is Doing to Reduce Mercury Pollution, and Exposures to Mercury, U.S. Env’t Protection Agency (last updated July 11, 2024) Exhibit
LigniteHgCtrl Kickoff Meeting Part 2 Exhibit
Coal Explained: Use of Coal, U.S. Energy Information Administration (last updated Sept. 14, 2023) Exhibit
n re Midwest Energy Emissions Corp. Patent Litig., MDL No. 3132 ECF 35 (J.P.M.L. Nov. 14, 2024) (Patent Owner’s Reply Brief in Support of Consolidation) Exhibit
Birchtech, Technology Overview Exhibit
FINAL JHP-ARSS-SEAs_for_Mercury_Control doc Exhibit
Metadata for Notes on Center for Air Toxic Metals Exhibit
Control of Mercury Emissions from Coal-Fired Electric Utility Boilers - interim report Exhibit
LigniteHgCtrl Kickoff Meeting Part 1 Exhibit
Exec. Order No. 14261, 90 Fed. Reg. 15517 (April 8, 2025) Exhibit
LigniteHgCtrl_R2 Exhibit
Probasco et al v. MFA Inc., 4:22-CV-00117 (S.D. Iowa) (Judge Locher) (Docket Sheet and ECF 7, 9) Exhibit
G.W. Lisk Company, Inc. v. Gits Manufacturing Company, 4:17-cv- 00273 (S.D. Iowa) (Docket Sheet) Exhibit
Nuhn Industries Ltd v. Bazooka Farmstar LLC, 3:22-cv-00015 (S.D. Iowa) (Docket Sheet and ECF 286) Exhibit
Puget Sound Energy, Colstrip Facts Exhibit
Deere & Co. et. al v. Kinze Mfg., Inc. et. al, 4:20-CV-00389 (S.D. Iowa) (Docket Sheet) Exhibit
October 2003 report to DOE Exhibit
EPA final report to Congress 1998 Exhibit
Petitioners' Opposition to PO's Discretionary Denial Brief RESPONSE
In re: Midwest Energy Emissions Corp. Patent Litig., No. 4:24-md- 03132-SHL-WPK, ECF 131 (S.D. Iowa May 22, 2025) (Order Denying Without Prejudice Pre-Institution Stay) Exhibit
Docket Navigator, Time to Trial in the Southern District of Iowa Exhibit
Piatz v. State Farm Mut. Auto. Ins. Co., 3:21-CV-00007 (S.D. Iowa) (Judge Locher) (Docket Sheet and ECF 8) Exhibit
EPA Report to Congress Exhibit
Midwest Energy Emissions Corp. v. Arthur J. Gallagher & Co., No. 19-1334-RGACJB ECF 1 (D. Del. July 17, 2019) (Complaint for Patent Infringement) Exhibit
Cleaner Power Plants _ Mercury and Air Toxics Standards (MATS) _ US EPA Exhibit
Feb 3 2003 Review Meeting Presentation Exhibit
Email from Justin Nemunaitis to Joe Jacobi (Jan. 16, 2024, 11:01 AM) Exhibit
Patent Owner’s Response to Petitioners’ Motion to Stay Pending Inter Partes Review In re: Midwest Energy Emissions Corp. Patent Litig., No. 4:24-md-03132-SHL-WPK, ECF 128 Exhibit
Patent Owner's Motion to Seal MOTION
Plaintiff’s Initial Infringement Contentions (March 18, 2025) served in In re: Midwest Energy Emissions Corp. Patent Litig., No. 4:24-md- 03132-SHL-WPK Exhibit
Shin v. Winnebago Indus., Inc. et. al, 3:23-CV-00077 (S.D. Iowa) (Judge Locher) (Docket Sheet) Exhibit
In re: Midwest Energy Emissions Corp. Patent Litig., No. 4:24-md- 03132-SHL-WPK, ECF 1 (S.D. Iowa December 17, 2024) (MDL Transfer Order) Exhibit
Mercury Control Technologies for Electric Utilities-Final Report Exhibit
Case Management Order Exhibit
Center for Air Toxic Metals, 2003 Research Ideas Exhibit
2020 07 15 [130] First Amended Complaint Exhibit
Pilot- and Full-Scale Demonstration-Final Report Exhibit
DTE Electric Company Affiliates Report-MPSC Form P521 Exhibit
Patent Owner's Discretionary Brief (Redacted) RESPONSE
Pilot- and Full-Scale Demonstration-Quarterly Report Exhibit
2025-05-22 0131 - Court - Order Denying Mtns to Stay [117, 127] and Mtn to Compel [106] Exhibit
ME2C Reply Brief in Support of Preliminary Injunction (Redacted) Exhibit
Document Metadata for Center for Air Toxic Metals, 2003 Research Ideas Exhibit
WPLC's First Amended Answer (Redacted) Exhibit
ME2C Brief in Support of Motion for Preliminary Injunction Exhibit
MidAmerican's First Amended Answer (Redacted) Exhibit
Transcript of Jury Trial-ME2C v. Gallagher & Co (D.Del) Exhibit
Declaration of Inventor John Pavlish Exhibit
Original Complaint for Patent Infringement-ME2C v. Vistra (D.Del) Exhibit
Defs Brief in Support of Response to Motion for Preliminary Injunction (Redacted) Exhibit
PacifiCorp's First Amended Answer (Redacted) Exhibit
Non-Final Judgment Following Jury Verdict-ME2C v. Gallagher & Co (D.Del) Exhibit
Complaint for Patent Infringement Exhibit
Petitioner MEC’s Stipulation Regarding District Court Proceedings Exhibit
Petitioners’ Updated Exhibit List NOTICE
Petitioner PacifiCorp’s Stipulation Regarding District Court Proceedings Exhibit
Petitioners WPL and IPL’s Stipulation Regarding District Court Proceedings Exhibit
Notice: Notice filing date accorded NOTICE
Admission Pro Hac Vice of Richard Cochrane MOTION
Declaration in Support of Justin T. Nemunaitis Admission Pro Hac Vice Exhibit
Admission Pro Hac Vice of Justin T. Nemunaitis MOTION
Declaration in Support of Richard Cochrane Admission Pro Hac Vice Exhibit
Notice: Mandatory Notice NOTICE
Notice: Power of Attorney NOTICE
CRC Handbook of Chemistry and Physics, 86th Ed.; Lide, D.R., ed. Exhibit
Redline Comparison, showing changes from '595 App to '558 App Exhibit
Welcome Pg of CD mailed to conf attendees of the 2002 Air&Waste Mgnt 95th Exhibit
MidAmerican Energy Company Power of Attorney NOTICE
File History of U.S. Patent Application No. 11/209,163 Exhibit
EPA "Mercury Study Report to Congress Volume VIII: An Evaluation of Mercury Exhibit
Scan of jacket of CD mailed to conference attendees from EUEC: 8th EUE Con Exhibit
U.S. Patent No. 7,514,052 to Lissianski et al. Exhibit
File History of U.S. Patent Application No. 15/997,091 Exhibit
Sjostrom, "Full Scale Evaluations of Mercury Control Technologies with... Exhibit
EPA Newsroom, "Public Comment Period Begins for Proposed Power Plant Reg... Exhibit
Bustard et al. "Full Scale Evaluation of Sorbent Injection for Mercury... Exhibit
US EPA, AP-42: External Combustion Sources, Chapter 1: Fifth Edition, Vol 1 Exhibit
Babcock & Wilcox, Steam: its generation and use, 40th ed., Part 1 Exhibit
WEC Energy Group, Inc. Power of Attorney NOTICE
State of Massachusetts Mass EPA, Internet Archive, dated Jan 6, 2003 Exhibit
U.S. Patent No. 8,168,147 Exhibit
EPA Newsroom, “EPA Announces First-Ever Rule to Reduce Mercury Emissions... Exhibit
Main Menu of CD mailed to conf attendees of the 2002 Air&Waste Mgnt 95th... Exhibit
Redline Comparison, showing changes from ’558 App. to ’970 App. Exhibit
U.S. Patent No. 8,652,235 to Olson et al. Exhibit
Midwest Energy Emissions Corp., et al. V. Arthur J. Gallagher & Co., et al. Exhibit
U.S. Patent No. 10,589,225 to Olsen et al. Exhibit
Interstate Power & Light Company Power of Attorney NOTICE
U.S. EPA, "Study of Hazardous Air Pollutant Emissions from Electric Utility Exhibit
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