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Catherine Cheng Xu

Member

[email protected]

+1.617.348.1765

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Catherine is an intellectual property attorney whose practice is focused on high tech patent litigation in the US International Trade Commission (ITC) and patent diligence. Her legal training is complemented by her electrical engineering background. Catherine has handled various cases involving complex technology  such as computer systems, embedded hardware, microprocessors, graphics processors, semiconductor fabrication and packaging, and DRM, among others.

In her role as a patent litigator, she has a played a key role in multiple ITC investigations to successful outcomes. Among other things, this involved leading the technical analysis, managing complex discovery involving source code, deposing and examining fact and expert witnesses, presenting oral arguments at hearings. Additionally, Catherine was involved in multiple foreign enforcement programs in Germany and China, where she worked closely with foreign counsel on the strategy for infringement and nullity proceedings.

Catherine was a Summer Associate at Mintz, and also interned in the Shanghai, China, office of another US law firm, where she worked on a US patent litigation involving Chinese LED manufacturers.

Experience

  • Certain Semiconductor Devices, Products Containing the Same, and Components Thereof (II) (337-TA-1177) - Represented GlobalFoundries at the International Trade Commission and in multiple Western District of Texas actions, involving the direct and indirect infringement of four patents related to semiconductor devices, integrated circuits, and products containing the same. Additional defendants in these actions included Apple, Broadcom, Cisco, nVidia, Arista, Asus, and Lenovo. Within 2.5 months of filing at the ITC, the cases settled on favorable terms.
  • Certain Semiconductor Devices, Integrated Circuits, and Consumer Products Containing the Same (337-TA-1149) – Represented Innovative Foundry Technologies as part of a global enforcement strategy to protect five asserted patents relating to semiconductor fabrication and packaging. Respondents for the ITC matter included Taiwan Semiconductor Manufacturing Company, Qualcomm Incorporated, MediaTek, and Vizio. Cases were simultaneously filed in U.S. District Court and internationally in Germany and China. The investigation was instituted in March of 2019 and resolved favorably prior to the conclusion of discovery in August of 2019.
  • Certain Graphics Systems, Components Thereof, and Consumer Products Containing the Same (337-TA-1044) – Represented Advanced Micro Devices (AMD) as complainant in the ITC asserting patents covering graphics processing technology employed by smart devices such as televisions and handsets. Respondents include LG Electronics, VIZIO, MediaTek, and Sigma Designs, Inc. (SDI). Achieved settlement with LG prior to the conclusion of expert discovery. Following the evidentiary hearing, the presiding ALJ issued an initial determination finding a violation of Section 337 and recommending the imposition of an exclusion order against the remaining Respondents’ accused products. The ITC affirmed the ALJ’s finding of a violation on August 22, 2018. As a result, the Commission issued orders banning the importation of products made by VIZIO, MediaTek, and SDI and cease and desist orders against VIZIO and SDI.
  • Certain Computing or Graphics Systems, Components Thereof, and Vehicles Containing Same (337-TA-984) – Represented owner of portfolio of graphics processing and microprocessor patents, Advanced Silicon Technologies, LLC, as Complainant in an ITC investigation adverse to a number of automotive manufacturers, and infotainment system and chip suppliers. Respondents include Honda, Toyota, BMW, Audi, Volkswagen, NVIDIA, Texas Instruments, Renesas, Harman International, and Fujitsu-Ten. The investigation instituted in January of 2016 and resolved favorably prior to the conclusion of expert discovery in August of 2016.
  • Certain Video Processing Devices, Components Thereof, and Digital Smart Televisions Containing the Same (337-TA-1222) – Represented DivX, a video codec company headquartered in San Diego, in enforcing patents before the ITC in the District of Delaware. The asserted patents involve innovations relating to digital rights management and streaming media. LG and Samsung settled after the Markman order was issued, leaving TCL as the sole remaining respondent. Shortly after the seven day evidentiary hearing held in July 2021, one of the two principal suppliers of the accused streaming technology to TCL, namely Roku, stepped in and took a license to DivX’s portfolio, thus partially resolving DivX’s claims against TCL. Prior to the court issuing a decision on the merits, DivX and TCL entered into a bilateral settlement agreement resolving DivX’s remaining claims against TCl and bringing an end to all pending litigation.
  • Certain Semiconductor Devices, Products Containing the Same, and Components Thereof (II) (337-TA-1177) - Represented GlobalFoundries at the International Trade Commission and in multiple Western District of Texas actions, involving the direct and indirect infringement of four patents related to semiconductor devices, integrated circuits, and products containing the same. Additional defendants in these actions included Apple, Broadcom, Cisco, nVidia, Arista, Asus, and Lenovo. Within 2.5 months of filing at the ITC, the cases settled on favorable terms.
  • Certain Semiconductor Devices, Integrated Circuits, and Consumer Products Containing the Same (337-TA-1149) – Mintz represented Innovative Foundry Technologies as part of a global enforcement strategy to protect 5 asserted patents relating to semiconductor fabrication and packaging. Respondents for the ITC matter included Taiwan Semiconductor Manufacturing Company, Qualcomm Incorporated, MediaTek, and Vizio. Cases were simultaneously filed in U.S. District Court and internationally in Germany and China. The investigation was instituted in March of 2019 and resolved favorably prior to the conclusion of discovery in August of 2019.
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viewpoints

Some respondents at the ITC have taken advantage of using infringement contentions as a procedural tool to deny patent owners from getting their day in court.  In some investigations, respondents have gone so far as to delay their own production of discovery until after the infringement contention deadline, then claim lack of fair notice when the patent owner uses the late discovery in its expert report.
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Mintz is recognized as among the top ten firms in ITC Section 337 litigation by Patexia in its inaugural "ITC Intelligence Report". We are pleased to be among the firms included in this publication and thrilled that it has come on the heels of a great year at the ITC for the Mintz team.
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Read about the preliminary injunction issued by the Fuzhou Intermediate People’s Court in China against Apple for its infringement of two Qualcomm patents.
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A recent order from the Northern District of California provides some succinct guidance on the relevancy of discovery concerning litigation funding. In Space Data Corp. v. Google LLC, 5-16-cv-03260, the court denied Defendants Google and Alphabet’s motion to compel discovery as to potential litigation funding allegedly considered by Plaintiff Space Data.
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In its first en banc decision of 2018, the Federal Circuit held that “judicial review is available for a patent owner to challenge the U.S. Patent and Trademark Office’s determination that the petitioner satisfied the timeliness requirement of 35 U.S.C. § 315(b) governing the filing of petitions for inter partes review.”
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The Federal Circuit has now reversed the Patent Trial and Appeal Board’s decision in Synopsys, Inc. v. ATopTech, Inc.  finding claims 1 and 32 of U.S. Patent No. 6,567,967 (the “‘967 patent”)  as being “not supported by substantial evidence.”
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The U.S. Supreme Court ruled on June 20, 2016 in Cuozzo Speed Techs., LLC v. Lee that: (1) the statutory authority of the Patent Trial and Appeal Board (“Board”) in instituting an inter partes review (“IPR”) proceeding is final and non-appealable, thereby not being subject to judicial review, and (2) it is appropriate for the Board to construe claims in an issued patent according to their broadest reasonable interpretation, rather than their plain and ordinary meaning as in district court litigation.
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It can be tricky to evaluate written description support under 35 U.S.C. § 112 for negative claim limitations since the support may amount to the absence of a feature from an invention that is described positively with respect to what it includes, as opposed to what it does not.
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News & Press

Press Release Thumbnail Mintz

BOSTON- Mintz has once again been recognized as one of the most active and high-performing International Trade Commission (ITC) law firms in the Patexia 2024 ITC Intelligence Report. 

Press Release Thumbnail Mintz

Mintz proudly announced the election of 13 attorneys to Members and the addition of a record-setting 22 new lateral Members in 2023, with 11 Partners in the newly opened Toronto office. This diverse group strengthens Mintz’s core areas, spanning Commercial and IP Litigation, Life Sciences, Tech, Private Equity, and Energy & Sustainability. The elevated Members and new lateral additions bring invaluable expertise to help clients navigate complex legal landscapes. 

Press Release Thumbnail Mintz

BOSTON – Mintz has been recognized as one of the most active and high-performing International Trade Commission (ITC) law firms in the Patexia 2023 ITC Intelligence Report.

Mintz Member Brad Scheller, Associates Catherine Xu and Linyu Mitra, and Senior Patent Agent Gurneet Singh, authored this IP Frontline article discussing the U.S. Supreme Court case of Cuozzo Speed Techs. v. Lee, and its implications for patent practitioners.
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Recognition & Awards

  • Ranked by Patexia among the Most Active ITC Attorneys Representing Complainants (2024)

  • Ranked by Patexia among the Best Performing ITC Attorneys Representing Complainants (2024)

  • Eta Kappa Nu, Electrical Engineering Honor Society

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