ProAmpac Holdings Inc. vs. Sigma Technologies Int'l, LLC et al.

Explore the PTAB proceeding IPR2025-01143 filed by ProAmpac Holdings Inc. on 2025-06-11. This includes filing dates, application numbers, tech centers, patent numbers, and current case status.

Proceeding Overview

Proceeding Number

IPR2025-01143

Filing Date

2025-06-11

Accorded Filing Date

2025-06-11

Institution Decision Date

2025-12-11

Last Modified Date

2026-01-13

Proceeding Type

IPR

Termination Date

2025-12-11

Trial Status

Institution Denied

Parties & Counsel

Petitioner

ProAmpac Holdings Inc.

Represented By

Davis, Walteret al

Patent Owner / Respondent

Sigma Technologies Int'l, LLC et al.

Represented By

Curley, Michaelet al

Tribunal & Venue

Tribunal

Patent Trial and Appeal Board (USPTO)

Technology Center

TC 3700 - Mechanical Engineering & Manufacturing

Patent Information

1 Patent Involved

Respondent Application Number 16238998

Respondent Patent Number 11072148

External Links

Espacenet

Google Patents

Respondent Inventor Steven Yializis et al

Respondent Tech Center TC 3700 - Mechanical Engineering & Manufacturing

Address and Attorney/Agent Information

59 Registered Practitioners

Power of Attorney & Correspondence

Firm / Entity Name QUARLES & BRADY LLP (TUC) - Attn: IP Docket

Customer Number —

Address ONE SOUTH CHURCH AVENUE, SUITE 1800, TUCSON, AZ, 85701-1621, UNITED STATES

Attorney / Agent Information

Reg #	Name	Phone
36914	Paul Savereide	612-351-5063
37551	Michael Jaskolski	414-277-5711
38599	Richard Roche	414-277-5805
40634	Christine Hansen	317-399-2829
41756	Terri Flynn	414-277-5229
42533	Therese Finan	202-780-2647
42875	Christopher Mcwhinney	202-372-9605
43193	Jean Tibbetts	414-226-0071
45178	Stephanie Vavra	414-277-5454
47255	Brian Dutton	202-780-2684
47933	Raye Daugherty	414-277-5779
56098	Jack Cook	414-277-5405
56610	Nicholas Schmidbauer	312-715-5072
56736	Thomas Krumenacher	414-277-5199
56972	John Linzer	312-715-5059
58079	Katherine Lobel-Rice	303-268-0066
59057	Stephen Gardner	608-251-5000
59110	Thomas Keating	608-251-5000
59205	Michael Febbo	331-214-6446
59229	Kevin Rizzuto	414-277-5000
60214	Lu Yin	650-752-2436
60978	Daniel Ark	414-277-3061
61522	Tambryn Vanheyningen	608-283-2423
63076	Jonathan Stone	414-277-5000
63251	Michael Curley	520-770-8700
63507	Yakov Sidorin	520-770-8753
63550	James Aquilina Ii	202-780-2637
68176	Wei Yan	312-715-5027
68555	Victoria Cook	602-229-5200
68703	Rory Foster	608-283-2417
68905	Tolga Gulmen	608-283-2421
68994	Lauren Bolcar	202-372-9524
69958	Justin Deangelis	312-715-5168
71189	Michael Santonocito	312-715-2714
71573	Michele Washington	281-216-7654
71915	Michael Piery	414-277-5000
73011	Sarah Cassinis	303-268-0066
76638	Lauren Mccomis	141-427-75348
78193	John Jansky	414-277-5287
78458	Joseph Ambrose	312-715-5106
78923	Gregory Churney	312-715-2724
79638	Katharine Schulz	952-237-1372
80043	Todd Coffeen Jr.	317-399-2844
80223	Scott Nolan Ii	248-770-7397
80560	Trevor Foster	312-715-5017
80579	Trevor Wilkinson	608-643-9011
80652	Jeffrey Sazama	262-227-8969
80992	Kathryn Madison	303-268-0066
81028	Peter Volberding	414-277-5211
81875	Seth Essendrop	414-277-5239
81924	Mason Baranczyk	414-277-5564
81942	Remy Cooper	202-780-2681
82072	Noah Blue	414-277-500
82085	Theodore Lester	414-277-5528
82393	Margaret Robinson	608-251-5000
82468	Harrison Powell	312-715-5014
82738	Jonathon Young	608-283-2490
82763	Michael Neary	608-251-5000
83007	Alexandra Ballwanz	414-277-5236

Proceeding Documents

Notice: refund approved NOTICE

2025-12-18 FILING PARTY: BOARD

Download

Petitioner's Request for Refund [25-1143] OTHER

2025-12-15 FILING PARTY: PETITIONER

Download

1035

Ex. 1035_USPTO Email payment notice correspondence Exhibit

2025-12-15 FILING PARTY: PETITIONER

Download

Institution Decision: Deny DECISION

2025-12-11 FILING PARTY: BOARD

Download

2029

EX2029 Amended Joint Claim Construction Chart Exhibit

2025-11-25 FILING PARTY: PATENT OWNER

Download

ProAmpac Holdings Inc. vs. Sigma Technologies Int'l, LLC et al.

Proceeding Overview

Parties & Counsel

Petitioner

ProAmpac Holdings Inc.

Represented By

Patent Owner / Respondent

Sigma Technologies Int'l, LLC et al.

Represented By

Tribunal & Venue

Patent Information

Address and Attorney/Agent Information

Power of Attorney & Correspondence

Attorney / Agent Information

Proceeding Documents

Notice: refund approved NOTICE

Petitioner's Request for Refund [25-1143] OTHER

Ex. 1035_USPTO Email payment notice correspondence Exhibit

Institution Decision: Deny DECISION

EX2029 Amended Joint Claim Construction Chart Exhibit

Patent Owner's Supplemental Brief Addressing the Impact of the Revvo and Tesla Decisions on These Proceedings in View of Petitioner's Different Claim Construction Positions OTHER

EX 1033 - 2025.11.25_Amended Joint Claim Construction chart Exhibit

EX1034 - Oct 14 2025 Email to Pratt Exhibit

Petitioner's Brief in Response to Board's Authorization for Briefing on Impact of The Revvo and Tesla Decisions OTHER

Patent Owner's Response to Petitioner’s Reply to Patent Owner’s Preliminary Response OTHER

Email Correspondence Exhibit

Director Discretionary Decision: Refer RESPONSE

Petitioner's Reply to Patent Owner's Preliminary Response OTHER

EX1028_Pratt v. ProAmpac - Order Granting Stip and Proposed Order to Amend Case Deadlines Exhibit

EX1030_ProAmpac's Response to Interrogatory No. 8 - Public Version Exhibit

PETITIONER'S OPPOSITION TO PATENT OWNER'S REQUEST FOR DISCRETIONARY DENIAL RESPONSE

EX2025 Exhibit

EX2021 Exhibit

EX1025_Pratt's Amended Initial Disclosure of Asserted Claims and Infringement Contentions Exhibit

EX1024_Pratt's Initial Disclosure of Asserted Claims and Infringement Contentions Exhibit

EX2028 Exhibit

EX1020_Targus v. Victorinox Order Exhibit

EX1031_Pratt's Response to Interrogatory No. 4 Exhibit

EX2023 Exhibit

EX2026 Exhibit

EX2022 Exhibit

EX1032_Pratt's First Requests for Production Exhibit

EX2027 Exhibit

EX1022_Nikolai Tankovich v. Candela Order Exhibit

EX2024 Exhibit

EX1026_FCMS US District Courts Dist Profile 06.30.2025 Exhibit

EX2020 Exhibit

Patent Owner's Preliminary Response POPR

EX1023_Judge Andrews Motion Success for Stay Pending IPR (Post-Institution) Exhibit

EX1029_Proampac's Notice of Service Exhibit

EX1021_Analog v. Xilinx Order Exhibit

EX1019_Judge Andrews Motion Success for Stay Pending IPR Exhibit

EX1027_Pratt v. ProAmpac - Joint Stip and Proposed Order Exhibit

Email Correspondence Exhibit

Ex. 1018_Hernandez Decl. ISO PHV Motion [25-01143] Exhibit

PETITIONER'S MOTION FOR PRO HAC VICE ADMISSION OF JONATHAN M. HERNANDEZ UNDER 37 C.F.R. § 42.10 MOTION

PETITIONER'S NOTICE OF DEPOSITION OF STEVEN YIALIZIS NOTICE

EX2003_DOCKET ENTRIES from D. Del. Litigation Exhibit

EX2014_Ecto World (USPTO Dir 250519) (precendential) Exhibit

EX2006_Joint Stipulation Substituting Parties Exhibit

EX2017_Samsung v GenghisComm (PTAB 250822) (nonprecedential) Exhibit

EX2011_USPTO (Process) Memo Exhibit

EX2019_USPTO Enforcement Memo 250731 Exhibit

EX2001_ProAmpac's First Amended Answer and Counterclaims Exhibit

EX2018_Sotera v Maismo (PTAB 2020) (precedential) Exhibit

EX2013_Dabico (PTAB 250618) (nonprecedential) Exhibit

EX2005_Scheduling Order Exhibit

EX2004_Oral Order Denying Motion to Stay Exhibit

Patent Owner's Request for Discretionary Denial RESPONSE

EX2015_Hospira (PTAB 170727) (informative) Exhibit

Ex2012_Apple v Fintiv (PTAB 2020) (precedential) Exhibit

EX2010_USPTO (Boalick) Memo Exhibit

EX2016_Motorola v Stellar, LLC (USPTO Dir 250328) Exhibit

EX2009_Zappia et al. article (Law360 250617) Exhibit

EX2008_Dennis Crouch article (Patently-O 250507) Exhibit

EX2007_ProAmac's Initial Invalidity Contentions Exhibit

EX2002_Yializis Declaration Exhibit

PETITIONER'S STIPULATION OTHER

PETITIONER'S UPDATED MANDATORY NOTICES NOTICE

Notice: Notice filing date accorded NOTICE