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  3. | Sony B. Barari

Sony B. Barari

Partner

San Francisco

  • 415.956.1900
  • 415.291.4521
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Sony Barari is a Partner at Bartko Pavia LLP and specializes in high-stakes intellectual property, trusts and estates, and other complex commercial litigation. With twenty years of litigation experience, Sony has served as first or second chair in multiple trial victories, handling cases that range from pro bono matters to billion-dollar defenses. With a background in molecular biology and genetics, he previously worked as an in-house attorney for a biotech company and was an employee of the United States Patent and Trademark Office (USPTO), where he is a member of the patent bar. He has also litigated and provided counsel to intellectual property clients in various fields, including computer software, language recognition, mobile communications, systems monitoring, and electronics. Sony's work encompasses patent infringement, trademark, trade secret, copyright, cybersquatting, right of publicity, and unfair competition matters. Additionally, he has helped companies protect and monetize their intellectual property portfolios. Sony's practice also includes high-end trusts and estates, as well as other commercial litigation. He has litigated cases in various federal district courts across the country, as well as appellate matters before the Ninth Circuit Court of Appeals, the Federal Circuit Court of Appeals, and the Supreme Court of the United States. In his personal life, Sony speaks Bengali, plays guitar, and enjoys spending time on the open road.

Credentials

Education

  • College of William Mary, J.D.
  • Harvard University, M.A.
  • University of California, Los Angeles, B.S.

Bar Admissions

  • State Bar of California
  • United States Patent and Trademark Office Patent Bar

Court Admissions

  • United States District Court for the Northern District of California
  • United States District Court for the Eastern District of California
  • United States District Court for the Southern District of California
  • United States District Court for the Central District of California
  • U.S. Court of Appeals for the Ninth Circuit
  • U.S. Court of Appeals for the Federal Circuit

Recognitions

  • California Lawyer Attorney of the Year (CLAY) Award (2022)

Experience

  • Natera, Inc. v. Sequenom, Inc. (N.D. Cal.). Sony was lead counsel representing a plaintiff seeking to invalidate a patent relating to non-invasive prenatal genetic testing. He succeeded in obtaining a summary judgment of invalidity on the grounds that the patent – which had sought to claim discoveries relating to the mathematical relationship between maternal and fetal DNA in the mother’s bloodstream – extended to unpatentable laws of nature. Otherwise, the patent had threatened to violate this fundamental tenet of patent law and foreclose an entire field of technology based on the discovery that fetal DNA is present in mappable quantities in maternal blood as early as 10 weeks into pregnancy. The ruling was unanimously affirmed by the Federal Circuit Court of Appeals in a consolidated appeal, and upon argument and review the Supreme Court of the United States declined to grant certiorari in Ariosa Diagnostics, Inc. et al. v. Sequenom, Inc., 788 F.3d 1371 (Fed. Cir. 2015), cert. denied 136 S. Ct. 2511 (2016).
  • AntiCancer, Inc. v. Carestream Health, Inc. (S.D. Cal.). Sony defended a medical imaging equipment maker against claims of infringement of patents covering the imaging of cancer cells genetically transformed to express green fluorescent proteins (GFPs). Sony’s familiarity with the field and ability to conduct his own primary source scientific research allowed him to identify relevant prior art that resulted in the case settling favorably after a partial summary judgment of non-infringement was granted in favor of his client.
  • Genetic Technologies Limited v. Natera, Inc. (D. Del. and N.D. Cal.). Sony was lead counsel defending a genetic testing company against claims of patent infringement by a non-practicing entity. After obtaining a rarely granted transfer of the matter from the plaintiff’s home venue of Delaware to the client’s home in the Northern District of California, 2014 WL 1466471 (D. Del. Apr. 15, 2014), the plaintiff dismissed all claims in a “walk away” agreement without payment.
  • Davis v. Electronic Arts (N.D. Cal.). Sony represented the class of all former NFL athletes whose likenesses had been improperly used for the “historic teams” in the popular Madden NFL video game series without their consent. In a decision that has had extensive repercussions (including with the similar suit brought by NCAA athletes against EA sports for misappropriating the likenesses of college athletes without compensation), the Ninth Circuit upheld the district court’s finding that EA could not claim an “incidental use” or a First Amendment defense to the NFL players’ right-of-publicity claim.
  • Netlist v. Diablo (N.D. Cal.). Sony represented plaintiff in a complicated trial of trade secret, patent and trademark claims involving state of the art memory module technology.
  • WiAV v. Motorola (E.D. Va.). Sony was a member of a team representing tent-owner Mindspeed Technologies, Inc. against claims of invalidity and unenforceability for eight of its patents related to speech coder technology.
  • EBS Automotive Systems et al. v. Illinois Tool Works et al.; Illinois Tool Works v. MOC Products Company et al. (S.D. Cal.). Sony represented Illinois Tool Works in two patent infringement cases involving motor vehicle maintenance equipment.
  • International Printer Corp. v. Brother International Corp. et al. (E.D. Tex.). Sony defended the producer of imaging and printing equipment in a patent infringement suit in the Eastern District of Texas regarding systems and methods for monitoring and controlling copy machines.
  • Sony managed the transition of American Honda’s entire copyright portfolio into digital media and developed an ongoing program for copyright renewal and registration.

Insights

Honors and Awards

21, February 2024

Bartko Wins Top Defense Verdict

San Francisco, CA — The Bartko trial team from the In Re Francesca Naify case received a Daily Journal award as one of California’s top five defense verdicts in 2023, and the top trust and estate case verdict. Ben Riley, Rob Bunzel, and Sony Barari tried the case over five weeks, with 93 hours of testimony.  The case involved deceased United Artists theater tycoon Robert Naify and claims by his step-daughter that Naify did not provide his deceased wife with her full share of his $2.3 billion in assets.  The trial presented cutting-edge principals of probate and community property law, and a total damages claim of $680 million.

Press Release

07, February 2023

Bartko Clients Win $680 Million Francesca Naify Case

The San Francisco Superior Court entered its Statement of Decision and Judgment in favor of Bartko clients, the Co-Trustees of the Robert A. Naify Trust, and against Petitioner Christina Cortese.  Cortese had sought as much as $680 million in community property damages on behalf of her deceased mother.  The Court’s Statement of Decision rejected all of Ms. Cortese’s claims and damages, and Judgment has been entered for the Co-Trustees.

Media Mentions

18, October 2022

Bartko Trial Team Named California Attorneys of the Year!

Bartko attorneys Ben Riley, Sony Barari, Rob Bunzel, and Gabriella Wilkins were named 2022 California Attorneys of the Year, following their complete trial victory in the Robert A. Naify Trust case. The petitioner in that case claimed that her step-father, Robert Naify, promised to leave her his golf course in Spain, and to treat her the same as his biological daughters in his final trust. After a three-week trial where the petitioner sought at least $250 million, Judge Richard Ulmer rejected the oral promise claim.The Daily Journal and California Lawyer magazine selected the Bartko Naify trial team as one of 12 California Attorneys of the Year. The pdf article can be viewed here.

Press Release

28, March 2021

Bartko Secures Trial Victory in $250+ Million Alleged Oral Promise Case

Bartko clients, the Co-Trustees of the Robert A. Naify Trust, won a complete victory after a court trial held in February and March 2021.  The Petitioner, Christina Cortese, alleged that her stepfather, Robert Naify, orally promised to leave her a golf course in Marbella, Spain, and to treat her the same as his two biological daughters in his final trust.  Ms. Cortese, represented by Holland & Knight, sought recovery of the golf course and other assets worth between $250 million and $300 million.  The Bartko team argued that Ms. Cortese could not meet the required standard of clear and convincing proof, and put on substantial evidence from Robert Naify’s wills and trusts, actions, and documents disproving the petitioner’s claims.

Publications

30, June 2015

Federal Circuit Declines Request for Rehearing En Banc in High Profile, Non-Invasive Prenatal Genetic Testing Patent Case

The U.S. Court of Appeals for the Federal Circuit has denied the appellants’ request for rehearing en banc of the consolidated appeal of Ariosa v. Sequenom, Inc. and Natera v. Sequenom, Inc.  BartkoZankel clients Natera and DNA Diagnostics Centers, providers of non-invasive prenatal genetic tests, filed a declaratory judgment action in 2012 seeking a determination that defendant Sequenom’s patent is invalid.  After consolidating the case with a similar suit brought by Ariosa, Judge Susan Illston of the Northern District of California ruled that the patent-in-suit is invalid because its claims are not directed to patentable subject matter under 35 U.S.C. § 101.  In June 2015, a three-judge Federal Circuit panel unanimously affirmed Judge Illston’s decision.  The widely read Patently-O blog described the decision as the “leading case” in patentability jurisprudence.

Publications

12, June 2015

Federal Circuit Affirms Grant of Declaratory Judgment Obtained by BartkoZankel in Non-Invasive Prenatal Genetic Testing Case

The U.S. Court of Appeals for the Federal Circuit affirmed the Northern District’s grant of summary judgment in favor of BartkoZankel’s clients Natera, Inc. and DNA Diagnostics, Corp. in Natera v. Sequenom, Inc.  In a consolidated appeal, the Federal Circuit upheld the ruling of District Court Judge Susan Illston that the patent-in-suit is invalid because its claims are not directed to patentable subject matter under 35 U.S.C. § 101.  The widely-read patent law blog Patently-O stated that the case “has significant long-term implications for patent-eligibility not only in biotechnology, but in other fields where invention is based primarily on discovery.”

Press Release

28, May 2015

BartkoZankel Obtains Final Approval in Financial Advisor Class Settlement

The firm, representing a defined class of 135 former Wells Fargo financial adviser executives, obtained court approval of a settlement against the bank for a total of $7.42 million.  Wakefield, et al. v. Wells Fargo Company, et al., 3:13-05053 LB (ND Cal.).  The settlement also requires Wells to cease forfeiting deferred compensation of financial advisers who leave the bank to work for competitors. View pdf copy of the Order. The suit was commenced in 2013, on behalf of California and North Dakota financial advisers whose deferred compensation was forfeited due to competition, in violation of Cal. Bus. & Prof. Code § 16600 and related provisions of North Dakota law.  After motion practice, mediation, and document discovery, the parties settled on terms which return to the plaintiff financial advisers 99% of their forfeited compensation for those plaintiffs who left Wells within four years of the suit being filed, and $10,000 each to those plaintiffs who left Wells earlier than four years before suit was filed.  The trial Judge, the Hon. Laurel Beeler, described the result as an “excellent recovery for class members” in her Order approving the final settlement.  Class recoveries of nearly 100% for class members are virtually unheard of and the firm is very proud of this result.  The settlement that was approved followed a mediation conducted by the Hon. Ron Sabraw (Ret.) of JAMS, and was prosecuted in conjunction with co-counsel at the Florida firm Shumaker, Loop & Kendrick, LLP.  BartkoZankel attorneys responsible for the result include William Edlund, Rob Bunzel and Sony Barari.

Press Release

12, January 2015

Federal Court Orders Diablo to Pay Netlist Attorneys’ Fees and Costs

Oakland, California

Press Release

12, January 2015

Netlist Wins Major Legal Victory in Trade Secret, Breach of Contract Lawsuit Against Diablo Technologies, Inc.

Oakland, California

Press Release

01, April 2014

Court Denies Motion to Strike In Netlist Patent Case

April 1, 2014 – BartkoZankel and co-counsel achieved a significant result for client Netlist on April 1, 2014, with the court’s Order denying Defendants’ motion to strike Netlist’s patent infringement contentions.  The court agreed that Netlist’s contentions were sufficiently stated based on the publicly known information available to Netlist, even though Netlist had not yet obtained the accused ULLtraDIMM product.The BartkoZankel team consists of Ben Riley, Rob Bunzel, Paul Schuck, Sony Barari and Simon Goodfellow. View PDF copy of the article.

Areas of Focus

Practices

  • Intellectual Property
  • Litigation

Insights & News

Publications

05, September 2025

Client Alert: Texas Telemarketing Law Expands To Texts - Key Requirements

Effective September 1, 2025, SB 140 expands Texas’ telemarketing law to cover SMS/MMS and image messages. Businesses who send marketing texts from Texas or to persons located in Texas must register with the Texas Secretary of State ($200 filing fee; $10,000 security deposit).

Learn more

Speaking Engagements

04, September 2025

An Nguyen Ruda and Josiah Jenkins Present for the San Francisco Employer Advisory Council

Bartko Pavia's CEO & Co-Managing partner An Nguyen Ruda and associate Josiah Jenkins will present for the (SF EAC) California Employer Advisory Council on DEI: A New Four-Letter Bad Word and What It Means in this New Environment on September 11th, in San Francisco. This seminar features discussions on the latest legal changes impacting DEI programs, compliance strategies and risk-reduction tacticsand how to design DEI initiatives that align with today’s shifting landscape

Learn more

Media Mentions

07, August 2025

Law360 Spotlights Ian Papendick’s Arrival at Bartko Pavia

Ian Papendick, a seasoned antitrust attorney and former enforcer with the Colorado Attorney General’s Office, was recently featured in Law360 following his arrival at Bartko Pavia LLP as a litigation and antitrust partner.

Learn more

Press Release

30, October 2025

An Ruda Serves as Judge at the Berkeley Female Founders & Funders Summit

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Media Mentions

27, October 2025

Steve Vieux Featured in Law360 Coverage of the California Lawyers Association’s Golden State Institute

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Press Release

09, October 2025

Steve Vieux to Chair the California Lawyers Association’s Golden State Institute

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Press Release

08, October 2025

Melissa Harvey to Present at ICSC on Non-Retail Development in Shopping Centers

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Publications

06, October 2025

Meredith Vanderbilt Publishes Article in AHLA Health Law Weekly on FDA Drug Shortage Tracking

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Press Release

03, October 2025

Howland Gordon to Participate in ICSC Mock Negotiation on Anchor Exclusives

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Press Release

29, September 2025

ABA Antitrust Plaintiffs’ Roundtable Will Feature Insights from Ian Papendick

Learn more

Press Release

24, September 2025

David Graham to Speak at NRTA Conference

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Honors and Awards

23, September 2025

Patrick M. Ryan Earns Repeat Recognition as 2025 Top 100 Lawyer

Learn more

Publications

05, September 2025

Client Alert: Texas Telemarketing Law Expands To Texts - Key Requirements

Effective September 1, 2025, SB 140 expands Texas’ telemarketing law to cover SMS/MMS and image messages. Businesses who send marketing texts from Texas or to persons located in Texas must register with the Texas Secretary of State ($200 filing fee; $10,000 security deposit).

Learn more

Speaking Engagements

04, September 2025

An Nguyen Ruda and Josiah Jenkins Present for the San Francisco Employer Advisory Council

Bartko Pavia's CEO & Co-Managing partner An Nguyen Ruda and associate Josiah Jenkins will present for the (SF EAC) California Employer Advisory Council on DEI: A New Four-Letter Bad Word and What It Means in this New Environment on September 11th, in San Francisco. This seminar features discussions on the latest legal changes impacting DEI programs, compliance strategies and risk-reduction tacticsand how to design DEI initiatives that align with today’s shifting landscape

Learn more

Media Mentions

07, August 2025

Law360 Spotlights Ian Papendick’s Arrival at Bartko Pavia

Ian Papendick, a seasoned antitrust attorney and former enforcer with the Colorado Attorney General’s Office, was recently featured in Law360 following his arrival at Bartko Pavia LLP as a litigation and antitrust partner.

Learn more

Press Release

30, October 2025

An Ruda Serves as Judge at the Berkeley Female Founders & Funders Summit

Learn more

Media Mentions

27, October 2025

Steve Vieux Featured in Law360 Coverage of the California Lawyers Association’s Golden State Institute

Learn more

Press Release

09, October 2025

Steve Vieux to Chair the California Lawyers Association’s Golden State Institute

Learn more

Press Release

08, October 2025

Melissa Harvey to Present at ICSC on Non-Retail Development in Shopping Centers

Learn more

Publications

06, October 2025

Meredith Vanderbilt Publishes Article in AHLA Health Law Weekly on FDA Drug Shortage Tracking

Learn more

Press Release

03, October 2025

Howland Gordon to Participate in ICSC Mock Negotiation on Anchor Exclusives

Learn more

Press Release

29, September 2025

ABA Antitrust Plaintiffs’ Roundtable Will Feature Insights from Ian Papendick

Learn more

Press Release

24, September 2025

David Graham to Speak at NRTA Conference

Learn more

Honors and Awards

23, September 2025

Patrick M. Ryan Earns Repeat Recognition as 2025 Top 100 Lawyer

Learn more

Publications

05, September 2025

Client Alert: Texas Telemarketing Law Expands To Texts - Key Requirements

Effective September 1, 2025, SB 140 expands Texas’ telemarketing law to cover SMS/MMS and image messages. Businesses who send marketing texts from Texas or to persons located in Texas must register with the Texas Secretary of State ($200 filing fee; $10,000 security deposit).

Learn more

Speaking Engagements

04, September 2025

An Nguyen Ruda and Josiah Jenkins Present for the San Francisco Employer Advisory Council

Bartko Pavia's CEO & Co-Managing partner An Nguyen Ruda and associate Josiah Jenkins will present for the (SF EAC) California Employer Advisory Council on DEI: A New Four-Letter Bad Word and What It Means in this New Environment on September 11th, in San Francisco. This seminar features discussions on the latest legal changes impacting DEI programs, compliance strategies and risk-reduction tacticsand how to design DEI initiatives that align with today’s shifting landscape

Learn more

Media Mentions

07, August 2025

Law360 Spotlights Ian Papendick’s Arrival at Bartko Pavia

Ian Papendick, a seasoned antitrust attorney and former enforcer with the Colorado Attorney General’s Office, was recently featured in Law360 following his arrival at Bartko Pavia LLP as a litigation and antitrust partner.

Learn more

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