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Daniel B. Weinger


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Daniel is a litigator whose intellectual property practice focuses on patent and technology litigation at the International Trade Commission, the Federal District Courts, and the Patent Office. He handles disputes involving a wide range of technologies, including software, smartphones (and other converged devices), LEDs, semiconductor circuits and fabrication processes, and wireless technology standards.  Viewing patent and technology litigation through the lens of what is best for the business of his clients, Daniel counsels to achieve the best business result possible.  The scope of this work includes representing clients through all phases of patent strategy and litigation, both offensive and defensive, from inception of an enforcement program through final resolution. Daniel also works with owners of standard essential patents on issues relating to compliance with FRAND obligations, global enforcement, and licensing.

Prior to law school, Daniel worked as a database programmer with InterSystems, Corp., where he specialized in programming solutions for database development with a focus primarily on integration engines.

While Daniel focuses his practice on intellectual property related matters, he also handles other complex civil litigation related to technology such as trade secret and technology contract disputes. Daniel served as a Special Assistant District Attorney in the Middlesex County (MA) District Attorney's Office, based in the Framingham, MA, district court. During that time, Daniel prosecuted and tried numerous drug, larceny, breaking and entering, and motor vehicle cases in bench and jury sessions, and conducted day-to-day operations required by an ADA.


International Trade Commission

  • Certain Flocked Swabs, Products Containing Flocked Swabs, And Methods of Using Same (337-TA-1279) - Representing Copan Italia and Copan Industries as complainants in the International Trade Commission, asserting patent infringement claims against global competitors in a case involving the use of flocking technology (common in the textile industry) in the production of biological specimen collection swabs. Evidentiary hearing is scheduled for June 2022.
  • 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, 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.
  • 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 Communications or Computing Devices and Components Thereof (337-TA-925) – Represented owner of portfolio of communications and computing patents from former enterprise communications business unit of large multinational innovation company, Enterprise System Technologies, S.A.R.L. An ITC investigation was instituted in August 2014 as to respondent entities Apple, Samsung Electronics, LG Electronics and HTC Corporation. Google participated as an intervenor. The investigation resolved prior to evidentiary hearing in June of 2015.
  • Certain Consumer Electronics with Display and Processing Capabilities (337-TA-884) - Represented owners of the patent portfolio of the original Silicon Graphics, now known as Graphics Properties Holdings, as complainant in the ITC. Investigation was instituted in June 2013 and among the respondent entities were Panasonic, Toshiba, Vizio, and ZTE. Most respondents settled. After an evidentiary hearing held over several days in May 2014, on August 29, 2014 Mintz successfully obtained a recommendation for a Limited Exclusion Order against the remaining respondent, which chose to settle while Commission review of the Administrative Law Judge’s Initial Determination was pending.
  • Certain Consumer Electronics and Display Devices and Products Containing Same (337-TA-836) - Represented owners of the patent portfolio of the original Silicon Graphics, now known as Graphics Properties Holdings, as complainant in the ITC, and as plaintiff in multiple parallel District of Delaware cases. Cases were filed between late 2011 and early 2012, and all were resolved by the end of January 2013. The technology at issue relates to LCD panels, central processor units, graphics processing units, and other microprocessor technology. Successfully licensed all respondents, including some of the largest and most recognized names in the converged device space – Apple, LG, Research in Motion, Samsung, and Sony.
  • Certain Portable Communication Devices (337-TA-827) - Represented complainant in the ITC and as plaintiff in multiple parallel District of Delaware cases. Successfully licensed all respondents, including some of the largest and most recognized names in the converged device space – Amazon, LG, Motorola, Pantech Wireless, Research in Motion, Sony, and more. Cases were filed in December 2011 and settled in May 2012.
  • Certain LED Photographic Lighting Devices and Components Thereof (337-TA-804) – Represented the complainant (plaintiff) that makes LED lighting systems for use in film and TV production, at the International Trade Commission. The ITC handed down its Final Initial Determination of infringement on September 7, 2012. On January 17, 2013, the ITC issued a General Exclusion Order (GEO) against respondents based in both China and the United States. The result in this case is particularly notable because it is rare for the ITC to issue a GEO due to the rigorous criteria and careful balancing of interests that apply to requests for GEOs.

Federal District Court

  • Innovative Foundry Technologies LLC v. Semiconductor Manufacturing International Corporation, et al., 6:19-cv-00719 (W.D. Tex) - Represented Plaintiff in enforcing 4 patents related to semiconductor manufacturing technology. The case proceeded through Markman hearing where claims were construed favorably in all four patents and a “not invalid” determination issue in response to an attempt to invalidate one patent entirely. All claims between IFT and SMIC have been confidentially settled.
  • Canon Inc. v. Avigilon USA Corp. et al., (N.D. Tex., 3:18-cv-01317-K) - Defended a provider of networked video surveillance cameras, control devices, and associated software in a patent infringement action in the Northern District of Texas. Also represented the defendant in simultaneous IPR proceedings before the PTAB.
  • CellInfo, LLC v. American Tower Corporation, et al., (D. Mass. No. 1:18-cv-11250) - Defended American Tower Corporation in a trade secrets action in which we successfully dismissed in favor of arbitration.
  • Copan Italia SpA et al v. Puritan Medical Products Company LLC et al, 1:18-cv-00218 (D. Me) - Representing Copan Italia in asserting patent infringement and unfair competition claims against our client’s largest competitor, in a case involving the use of flocking technology (common in the textile industry) in the production of swabs to be used for the collection of biological specimen.
  • Graphics Properties Holdings, Inc. v. ASUS Computer International, Inc. et al (D. Del. 12-cv-210 (and others)) - Currently representing plaintiff in enforcement action relating to smartphones, televisions, tablets, computer monitors, and related technology.

Inter Partes Review

  • Successful Defense of Multiple IPRs – Represented Simplivity Corporation in two inter partes review proceedings where the PTAB denied institution, finding that the challenged claims were not unpatentable. IPR2016-01779, IPR2016-01780
  • Successfully defended validity of certain claims in patent related to video tripwire security system technology. IPR2017-01835, IPR2017-01837.
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Apple’s Hold-out Strategy Nears End & Appears to Backfire in UK

November 9, 2022 | Blog | By Michael Renaud, Daniel Weinger, James Thomson

The UK has again demonstrated the ongoing trend against hold-out, approving an order forcing Apple to commit to take a license on FRAND terms, to be determined by the court, or face an injunction. This ruling is the latest in a line of decisions favorable to SEP holders across Europe and the United States that seem to be retilting SEP licensing towards more balance between innovators (patent owners) and implementers (alleged infringers). While there is more progress to be made, and the recognition of hold-out as a real problem continues to gain traction, this new UK decision reinforces basic principles of patent law: injunctions for SEPs are a real possibility.
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5th Circuit Confirms Avanci SEP Pool is Safe: No Antitrust Issue with Avanci’s Pool

July 6, 2022 | Blog | By Daniel Weinger, Michael Renaud, Bruce Sokler, James Thomson

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DOJ Breaking with Big Tech Approach to SEPs

June 13, 2022 | Blog | By Daniel Weinger, Michael McNamara, Michael Renaud, James Thomson

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In this episode of the EXCLUSIVE RIGHTS: Intellectual Property podcast, founding host Dan Weinger speaks with Dr. Thomas Gniadek, a seasoned EU patent and trade secrets litigator with Simmons & Simmons in Munich, Germany, about the Unified Patent Court (UPC).
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No Harm, No Foul, and No Standing for Would-be SEP Implementer: 5th Circuit Changes Narrative on Patent “Hold Up”

March 3, 2022 | Blog | By Daniel Weinger, Michael Renaud, Bruce Sokler, James Thomson

In its analysis of Cont’l Auto. Sys., Inc. v. Avanci, L.L.C.,, the Fifth Circuit made several interesting findings: (1) that potential pass-through non-FRAND royalties are too speculative to create an injury in fact; (2) that SEP holders can fulfill their obligations to SSOs, with respect to suppliers, by actively licensing SEPs to downstream OEMs; and (3) that not all implementers are intended beneficiaries entitled to FRAND licenses.
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While there have been some adverse decisions from individual administrative law judges at the US International Trade Commission in recent years, final decisions coming from the commission since January 2019 have largely affirmed that complainants have satisfied the domestic industry (DI) requirement.
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Keep Out: Uniloc Gets Second Chance to Seal Licensing Documents

February 16, 2022 | Blog | By Daniel Weinger, Robert Sweeney

The Federal Circuit decision in Uniloc USA, Inc. et al. v. Apple, Inc., where a 2-1 panel ruled that the district court had abused its discretion by refusing to seal certain patent-licensing documents provided by plaintiffs, Uniloc USA, Inc. and Uniloc Luxembourg, S.A., demonstrates the Federal Circuit’s recognition of the importance of keeping certain patent licensing and other trade secret materials confidential.
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The Federal Circuit recently provided strategic guidance for defending software claims against Alice challenges that claims recite ineligible patent subject matter under 35 U.S.C. § 101. In Mentone Solutions LLC v. Digi International Inc., defendants alleged that representative claim 5 of U.S. Patent No. 6,952,413, directed towards allocating data channels using shifted uplink status flags in cellular mobile stations, claimed only an abstract idea. The District Court agreed and dismissed. On appeal, the Federal Circuit reversed, holding that claim 5 is not directed to an abstract idea because the claim improved the functionality of a computer.
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Uncertain Seas for SEP Sailing In the US – New Guidance May Cause Stormy SEP Future

December 9, 2021 | | By Michael Renaud, Daniel Weinger, Bruce Sokler, James Thomson

The DOJ is requesting public comment on a new draft policy concerning licensing negotiations and remedies for standards-essential patents (SEPs) subject to voluntary F/RAND commitments recently jointly issued by the U.S. Patent & Trademark Office (USPTO), the National Institute of Standards and Technology (NIST), and the U.S. Department of Justice, Antitrust Division (DOJ)(collectively, “the Agencies”).  The Agencies have requested comment on eleven questions until the comment period closes January 5, 2022.
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Discretion Retained: USPTO Dodges Attack from Big Tech to Rein in Discretionary IPR Denials

November 22, 2021 | Blog | By Michael McNamara, Daniel Weinger

The U.S. Patent and Trademark Office (USPTO) recently thwarted an attempt by big tech companies such as Apple, Cisco, Google, and Intel, to rid themselves of discretionary denials under the Fintiv factors. While these companies will almost assuredly seek other avenues to dismantle such discretionary denials, last week’s developments are a win for patent owners in the short term.
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News & Press

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BOSTON- Six attorneys from Mintz have been recognized in the 2023 edition of the Intellectual Asset Management (IAM) Strategy 300 Global Leaders Guide.
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Law360 reported that Mintz client American video codec company DivX, an early innovator in the digital streaming video and digital rights management scene, has reached confidential settlements with LG and Samsung, resolving international litigation claiming they infringe DivX’s streaming patents with their smart televisions. The Mintz team representing DivX is led by Member and Chair of the firm’s Intellectual Property Division Michael Renaud and Member Adam Rizk and includes Member and Chair of the firm’s Intellectual Property Litigation Practice Matthew Hurley, Members Keith Carroll, Marguerite McConihe, Michael McNamara, Samuel Davenport, and Daniel Weinger, and Associates Matthew Karambelas, Jessica Perry, and Nana Liu.
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Mintz Member Daniel B. Weinger was quoted in an article published by Law360 on a case recently taken up by the U.S. Supreme Court, Minerva Surgical Inc. v. Hologic Inc., which will determine whether a defendant in a patent infringement action who assigned the patent, or is in privity with an assignor of the patent, may have a defense of invalidity heard on the merits.
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In this Law360 expert analysis article, Mintz Member and Chair of the firm’s Intellectual Property Division Michael Renaud and Members James Wodarski and Daniel Weinger reflected on the biggest standard essential patent (SEP) victories of patent owners in 2020.
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Mintz Member and Chair of the firm’s Intellectual Property Division Michael Renaud, Members James Wodarski and Daniel Weinger, and Associate Kara Grogan co-authored an article published by IPWatchdog that critiques an article recently published in the University of San Diego Law titled “Glory Days: Do the Anticompetitive Risks of Standards-Essential Patent Pools Outweigh Their Procompetitive Benefits?,” which criticized patent pools, alleging inefficiencies and anticompetitive risks of pools for standard essential patents.
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Mintz Member and Chair of the firm’s Intellectual Property Division Michael Renaud, Members James Wodarski and Daniel Weinger, and Associate Kara Grogan co-authored an article published by IPWatchdog examining patent pools, an elective market mechanism designed to provide benefits to both innovators and implementers.
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Mintz Member and Chair of the firm’s Intellectual Property Division Michael Renaud, Member and Co-chair of the firm’s Antitrust Practice Joseph Miller, and Member Daniel Weinger co-authored a Law360 expert analysis article that examined an updated business review letter issued by the U.S. Department of Justice (DOJ)'s Antitrust Division to the Institute of Electrical and Electronics Engineers Inc., which clarified the DOJ's views on licensing and enforcement practices related to standard essential patent (SEP)s.
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Mintz Member Daniel Weinger and Associates Vincent Ferraro and Chris Duerden co-authored a recent Law360 expert analysis article that examined how the Federal Circuit’s en banc ruling in Aqua Products Inc. v. Matal has affected the motion to amend practice at the Patent Trial and Appeal Board, as well as other favorable trends for patent owners.
An article published by Law360 reported that following the U.S. International Trade Commission’s initial decision that Jennewein Biotechnologie GmbH’s imports infringe a Glycosyn LLC patent on human milk oligosaccharides, the Patent Trial and Appeal Board denied Jennewein’s petition for post-grant review of a related patent.

The Mintz team representing Glycosyn at the ITC includes Michael Newman, Thomas Wintner, Michael Renaud and James Wodarski; and the Mintz team representing Glycosyn at the PTAB includes Michael Newman, Thomas Wintner, Peter Cuomo and Daniel Weinger.
This feature story notes wireless communications company ParkerVision’s request to lift a pause in its lawsuit with Apple, LG, and Qualcomm over several smartphone patents. James Wodarski, Michael McNamara, Kristina Cary, and Daniel Weinger are representing ParkerVision in the case.
In this column, Mintz attorneys James Wodarski, Andrew DeVoogd, Daniel Weinger, and Matthew Karambelas analyze the decision made by the ITC about patent claims that have been negated by Alice Corp v. CLS Bank International in the 100-Day Pilot Program.
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Recognition & Awards

  • Named to IAM Strategy 300: The World's Leading IP Strategists (2022)
  • Named to IAM Strategy 300: Global Leaders – All Individuals (2023)
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  • Past Member, Board of Trustees, Ben Franklin Institute of Technology
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Daniel B. Weinger