Radostin Pachamanov PhD | Director | Quandary Peak Research

Radostin Pachamanov provides expert consulting in intellectual property litigation. He specializes in patent, trade secret, and copyright disputes, bringing a deep academic knowledge and substantial industry experience in telecommunications, along with decades of expertise evaluating diverse software and hardware technologies. His work supports litigation teams through detailed infringement and invalidity analyses, reverse engineering, system testing, and in-depth source code review across languages including Assembly, C/C++, Java, Python, and SQL.

Radostin’s background in telecommunications engineering provides a strong foundation for his litigation consulting. His expertise spans mobile networks (5G, LTE, UMTS, GSM, CDMA, WiFi, WiMAX), fixed broadband, OSS/BSS systems, TV platforms, and technical surveillance equipment. Prior to consulting, he served as a solution architect and account manager at Ericsson, where he led multimillion-dollar integration projects and advised telecom carriers on large-scale network deployments.

Over the course of his career, Radostin has submitted numerous expert declarations in IPR proceedings and consulted in multiple high-stakes cases. His blend of academic depth, industry experience, and litigation expertise allows him to deliver rigorous, technology-grounded analysis that strengthens clients’ positions in complex intellectual property disputes.

Summary of Qualifications

Ph.D. in Telecommunications Engineering, Technical University of Sofia, with research on traffic efficiency in mobile networks
B.Sc. in Telecommunications Networks, Technical University of Sofia
Over a decade of consulting experience in software, hardware, and telecommunications litigation
Authored numerous expert declarations and provided deposition testimony in U.S. District Courts, ITC proceedings, and USPTO/PTAB reviews
Former Solutions Architect and Account Manager at Ericsson, leading multimillion-dollar telecom integration projects
Published researcher in telecommunications and wireless network optimization with multiple peer-reviewed papers
Certified in Google Cybersecurity, IEEE Wireless Communications, and trained in mediation and negotiation at Harvard Law School

Areas of Expertise

Telecommunications Engineering
In-depth understanding and extensive experience in mobile and fixed broadband networks (5G, LTE, UMTS, GSM, CDMA, WiFi, WiMAX, IP, vDSL, DSLAM), telecom protocols, and OSS/BSS systems.
Intellectual Property Litigation Support
Skilled in infringement and invalidity analyses, expert declarations, and litigation strategy support in patent, trade secret, and copyright matters.
Source Code Analysis
Hands-on experience reviewing and interpreting code in Assembly, C/C++, Java, Python, SQL, and MATLAB.
Reverse Engineering & System Testing
Proficient in deconstructing hardware and software systems to uncover functionality and technical evidence.
Media & Broadcast Platforms
Knowledge of TV platforms, digital content standards, and secure distribution technologies.
Cybersecurity & Technical Surveillance
Strong understanding of cybersecurity, surveillance systems, and applied security practices.

Testifying Engagements

Ericsson, Inc., et al. v. Koninklijke KPN N.V. | 2023
Jurisdiction: U.S. Patent and Trademark Office, Patent Trial and Appeal Board
Case Number: 2023-00582
Counsel: Cabello Hall Zinda
Nature of Suit: Patent
Technology: Telecommunications
Role: Submitted expert declaration
Ericsson, Inc., et al. v. Koninklijke KPN N.V. | 2023
Jurisdiction: U.S. Patent and Trademark Office, Patent Trial and Appeal Board
Case Number: 2023-00524
Counsel: Cabello Hall Zinda
Nature of Suit: Patent
Technology: Telecommunications
Role: Submitted expert declaration
Ericsson, Inc., et al. v. Koninklijke KPN N.V. | 2023
Jurisdiction: U.S. Patent and Trademark Office, Patent Trial and Appeal Board
Case Number: 2022-00068
Counsel: Hamilton Brook Smith & Reynolds
Nature of Suit: Patent
Technology: Telecommunications
Role: Deposed and submitted expert declaration
Ericsson, Inc., et al. v. Koninklijke KPN N.V. | 2022
Jurisdiction: U.S. Patent and Trademark Office, Patent Trial and Appeal Board
Case Number: 2022-00069
Counsel: Hamilton Brook Smith & Reynolds
Nature of Suit: Patent
Technology: Telecommunications
Role: Deposed and submitted expert declaration
Ericsson, Inc., et al. v. Koninklijke KPN N.V. | 2022
Jurisdiction: U.S. Patent and Trademark Office, Patent Trial and Appeal Board
Case Number: 2022-00079
Counsel: Hamilton Brook Smith & Reynolds
Nature of Suit: Patent
Technology: Telecommunications
Role: Deposed and submitted expert declaration
Sierra Wireless, Inc., et al. v. Koninklijke KPN N.V. | 2018
Jurisdiction: U.S. Patent and Trademark Office, Patent Trial and Appeal Board
Case Number: 2018-00320
Counsel: Hamilton Brook Smith & Reynolds
Nature of Suit: Patent
Technology: Telecommunications
Role: Deposed and submitted expert declaration

Litigation Consulting

Maxell, Ltd. v. Samsung Electronics Co. | Jan 2026–Present
Jurisdiction: U.S. District Court for the Eastern District of Texas
Case Number: 5:25-cv-00052
Counsel: Mayer Brown LLP
Nature of Suit: Patent Infringement
In the Matter of Certain Mobile Cellular Communications Devices: Pantech Corp. v. OnePlus, Lenovo, TCL, Tinno, and HMD | Oct 2025–Present
Jurisdiction: International Trade Commission (ITC)
Case Number: 337-TA-3835
Counsel: Mayer Brown LLP
Nature of Suit: Patent
Intellectual Ventures v. American Airlines, Inc. | Oct 2025–Present
Jurisdiction: U.S. District Court for the Eastern District of Texas
Case Number: 4:24-cv-00980
Counsel: Kasowitz LLP
Nature of Suit: Patent
Intellectual Ventures v. Southwest Airlines Co. | Oct 2025–Present
Jurisdiction: U.S. District Court for the Western District of Texas
Case Number: 7:24-cv-00277
Counsel: Kasowitz LLP
Nature of Suit: Patent
CCC Information Services Inc. v. Tractable Inc. | 2019–2024
Jurisdiction: U.S. District Court for the Northern District of Illinois
Case Number: 1:18-cv-07246
Counsel: Latham & Watkins
Nature of Suit: Trade Secret
Technology: AI and auto insurance claims technology
Oracle America, Inc. v. Hewlett Packard Enterprise Company | 2017–2022
Jurisdiction: U.S. District Court for the Northern District of California
Case Number: 4:16-cv-01393
Counsel: Latham & Watkins
Nature of Suit: Trade Secret
Dolby Laboratories, Inc. v. Intertrust Technologies Corporation| 2020–2021
Jurisdiction: U.S. District Court for the Northern District of California
Case Number: 3:19-cv-03371
Counsel: Quinn Emanuel Urquhart & Sullivan, LLP
Nature of Suit: Patent
Technology: DRM and secure content distribution
Dali Wireless, Inc. v. John Mezzalingua Associates, LLC | 2021
Jurisdiction: U.S. District Court for the District of Delaware
Case Number: 1:19-cv-02367
Counsel: Folio Law Group
Nature of Suit: Patent
Technology: Wireless/mobile telecommunications technology
Vaporstream, Inc. v. Snap Inc. d/b/a Snapchat, Inc. | 2015–2020
Jurisdiction: U.S. District Court for the Central District of California
Case Number: 2:17-cv-00220
Counsel: Susman Godfrey LLP
Nature of Suit: Patent
Technology: Ephemeral communications
Entrust Datacard Corporation v. Atlantic Zeiser GmbH, et al. | 2019
Jurisdiction: U.S. District Court for the Middle District of Florida
Case Number: 3:17-cv-00110
Counsel: Briggs & Morgan, PA
Nature of Suit: Patent
Technology: Smart card technology and hardware controlling software
Oracle USA, Inc., et al. v. Rimini Street, Inc., et al. | 2014–2019
Jurisdiction: U.S. District Court for the District of Nevada
Case Number: 2:10-cv-00106
Counsel: Boies Schiller Flexner LLP
Nature of Suit: Copyright
Technology: Enterprise software support services and practices
Maxell, Ltd. v. ASUSTeK Computer Inc., et al. | 2019
Jurisdiction: U.S. District Court for the Northern District of California
Case Number: 3:18-cv-01788
Counsel: Mayer Brown
Nature of Suit: Patent
Technology: Digital camera technology and automatic gain control in cell phones
The People of the State of New York by Eric T. Schneiderman v. Charter Communications, Inc., et al. | 2018
Jurisdiction: Supreme Court of the State of New York, County of New York
Case Number: 450318/2017
Counsel: Latham & Watkins LLP
Nature of Suit: Regulatory
Technology: Internet infrastructure and network capacity testing
Rimini Street, Inc. v. Oracle International Corporation | 2015–2018
Jurisdiction: U.S. District Court for the District of Nevada
Case Number: 2:14-cv-01699
Counsel: Morgan Lewis & Bockius LLP
Nature of Suit: Copyright
Technology: Enterprise software support services and practices
Hitachi Maxell, Ltd. v. ZTE Corporation, et al. | 2017–2018
Jurisdiction: U.S. District Court for the Eastern District of Texas
Case Number: 5:16-cv-00179
Counsel: Mayer Brown
Nature of Suit: Patent
Technology: Mobile technology
Hitachi Maxell, Ltd. v. Huawei Technologies Co., Ltd., et al. | 2017–2018
Jurisdiction: U.S. District Court for the Eastern District of Texas
Case Number: 5:16-cv-00178
Counsel: Mayer Brown
Nature of Suit: Patent
Technology: Mobile technology
Rovi Guides Inc., et al. v. Comcast Corporation, et al. | 2016–2017
Jurisdiction: U.S. District Court for the Eastern District of Texas
Case Number: 2:16-cv-00321; 2:16-cv-00322
Counsel: McKool Smith
Nature of Suit: Patent
Technology: Digital video recorder technology
Motorola Solutions, Inc. v. Hytera Communications Corporation Ltd. | 2017
Jurisdiction: U.S. District Court for the Northern District of Illinois, Eastern Division
Case Number: 1:17-cv-01973
Counsel: Kirkland & Ellis LLP
Nature of Suit: Trade Secret
Technology: Two-way radio transmissions
Uniloc USA, Inc., et al v. Avaya Inc. | 2017
Jurisdiction: U.S. District Court for the Eastern District of Texas
Case Number: 6:15-cv-01168
Counsel: Prince Lobel Tye LLP
Nature of Suit: Patent
Technology: Conference calling technology
Telesocial Inc. v. Orange S.A., et al. | 2016
Jurisdiction: U.S. District Court for the Northern District of California
Case Number: 3:14-cv-03985
Counsel: Quinn Emanuel Urquhart & Sullivan, LLP
Nature of Suit: Trade Secret
Technology: Social calling app
TCL Communication Technology Holdings, Ltd v. Telefonaktienbolaget LM Ericsson, et al. | 2016
Jurisdiction: U.S. District Court for the Central District of California
Case Number: 8:14-cv-00341
Counsel: McKool Smith
Nature of Suit: Patent
Technology: Telecommunications technology
Ericsson Inc., et al. v. TCL Communication Technology Holdings Limited, et al. | 2016
Jurisdiction: U.S. District Court for the Eastern District of Eastern Texas
Case Number: 2:15-cv-00011
Counsel: McKool Smith
Nature of Suit: Patent
Technology: Telecommunications technology
Ericsson Inc., et al. v. TCL Communication Technology Holdings Limited, et al. | 2015
Jurisdiction: U.S. District Court for the Central District of California
Case Number: 2:15-cv-02370
Counsel: McKool Smith
Nature of Suit: Patent
Technology: Telecommunications technology
In the Matter of Certain Wireless Standard Compliant Electronic Devices, Including Communication Devices and Tablet Computers | 2015
Jurisdiction: International Trade Commission (ITC)
Investigation Number: ITC-337-TA-953
Counsel: McKool Smith
Nature of Suit: Patent
In the Matter of Certain Electronic Devices, Including Wireless Communication Devices, Computers, Tablet Computers, Digital Media Players, and Cameras | 2015
Jurisdiction: International Trade Commission (ITC)
Investigation Number: ITC-337-TA-952
Counsel: McKool Smith
Nature of Suit: Patent
Ericsson Inc., et al. v. Apple Inc. | 2015
Jurisdiction: U.S. District Court for the Eastern District of Texas
Case Number: 2:15-cv-00287, 2:15-cv-00293
Counsel: McKool Smith
Nature of Suit: Patent
Technology: Data transmission and generation of keys in encrypted or decrypted LTE data
Bridgestone Americas Tire Operations, LLC v. Schrader-Bridgeport International, Inc. | 2014–2015
Jurisdiction: U.S. District Court for the District of Delaware
Case Number: 1:13-cv-00763
Counsel: Wilmer Hale
Nature of Suit: Patent
Technology: Automotive embedded systems technology
St. Jude Medical Cardiology Division Inc. v. Volcano Corporation | 2014
Jurisdiction: U.S. District Court for the District of Delaware
Case Number: 1:12-cv-00441
Counsel: Fish & Richardson
Nature of Suit: Patent
Technology: Medical technology
Smartflash LLC, et al. v. Samsung Electronics Co. Ltd., et al. | 2014
Jurisdiction: U.S. District Court for the Eastern District of Virginia
Case Number: 6:13-cv-00448
Counsel: Quinn Emanuel
Nature of Suit: Patent
Technology: DRM technology and in-app payment transactions

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