• Managing Editor, Yale Law Journal (1996-97)
• President-elect (2021-22 term) of The Honorable Nancy F. Atlas Intellectual Property American Inn of Court
• Chair, Houston Bar Association Antitrust & Trade Regulation Section (2006-07)
• Litigator of the Week, The Texas Lawyer (Sept. 2013)
• Super Lawyer, Texas Super Lawyer (2013 – 2022, Thomson Reuters)
• Rising Star, Texas Super Lawyer (2004 – 2009, 2011, Thomson Reuters)
• Lawdragon 500 Leading Litigator (2022)
• Lawdragon 500 Leading Plaintiff Financial Lawyers in 2019, 2020, 2021, 2022.
• One of the “World’s Leading Patent Professionals,” IAM, (2017, 2020)
• Recommended Lawyer, Benchmark Litigation (2011, 2013, 2015, 2016, 2017, 2022, 2023 (Euromoney)
• Top Lawyer, H Texas Magazine (2008 – 2010, 2013, Bayou City Publishing)
• Top Lawyer, H Texas Magazine (2008 – 2010, 2013 Bayou City Publishing)
• Top Lawyer for the People, H Texas Magazine (2009
• Bayou City Publishing)
• Professional on the Fast Track, H Texas Magazine (2004, 2005, Bayou City Publishing)
• International Who’s Who of Competition Lawyers & Economists (2014, Law Business Research Ltd) i
• IP Star, Managing Intellectual Property (2015, 2017, 2019, and 2020, Euromoney)

• “Antitrust and Standard Setting”, Eastern District of Texas/Federal Circuit Bench Bar Conference (September 26, 2011)
• “Litigating and Trying Complex Civil Antitrust Class Actions: Jury Instructions,” American Bar Association Section of Antitrust Law Brown-Bag Tele-seminar (July 22, 2009)
• “E-Discovery and In re Weekley Homes,” Harris County Civil Judiciary’s 2009 Summer Continuing Judicial Education Seminar (August 4, 2009)
• “Exclusive Dealing, Loyalty Programs, and Bundling: The Plaintiff’s Perspective,” 2007 American Bar Association Antitrust Section Spring Meeting
• “The Front Lines: Prudent Business Decision-Making in Light of the New Realities of Distribution,” 2006 Conference Board Antitrust Conference
• “Evaluating the Competitive Effects of Exclusive Dealing Agreements: The Plaintiffs’ Perspective,” American Bar Association Tele-seminar (June 24, 2005) (reprinted in The Antitrust Source (November 2005)
• “The Mythology of Aggregate Corporate Knowledge: A Deconstruction,” 65 Geo. Wash. L. Rev. 210 (1997) (with Thomas A. Hagemann)
• Note, “Jihad and the Constitution: The First Amendment Implications of Combating Religiously Motivated Terrorism,” 105 Yale L.J. 1347 (1996)

• In December 2020, Grinstein – along with a team of lawyers from Susman Godfrey and co-counsel – secured a major pro bono victory in the Texas Supreme Court for client Alfred Dewayne Brown.   In 2005, Brown was convicted of capital murder by a Harris County jury – despite the fact that Brown’s prosecutor had received, in 2003, copies of phone records that corroborated Brown’s alibi but which were never provided to Brown’s defense.   In 2013, a Harris County detective discovered those phone records in his garage and turned them over, which eventually led to Brown’s release in 2015 after spending twelve years and sixty-two days wrongfully imprisoned, most of it on death row.  Grinstein and his colleagues at Susman Godfrey commenced their pro bono representation of Brown in 2015 to secure him relief under the Tim Cole Act, the Texas statute that provides compensation to wrongfully-imprisoned inmates like Mr. Brown.  Susman Godfrey obtained a ruling from the 351^st Criminal Court in Harris County that Brown was “actually innocent,” applied for compensation for Mr. Brown to Texas Comptroller Glenn Hegar, and then, after Hegar’s denial of Brown’s application, sought a writ of mandamus from the Texas Supreme Court to reverse Hegar’s decision.  Numerous prominent individuals and organizations filed amicus briefs in favor of Brown’s mandamus petition, including former Governor Rick Perry, Tim Cole’s brother Cory Sessions, former State Senator Rodney Ellis, various faith leaders, and the Cato Institute.  In December 2020, the Texas Supreme Court granted Brown’s mandamus petition, holding unanimously that Comptroller Hegar had improperly denied Brown’s application.  Brown will now receive close to $2 million in compensation from Texas.
• In February 2018, Grinstein represented Uber in one of the most prominent intellectual-property trials in years, Waymo v. Uber.   The case involved allegations that Uber had misappropriated Waymo trade secrets and infringed Waymo patents relating to self-driving car technology.  The lawsuit attracted attention around the world, and the trial was covered by an army of journalists and tech bloggers.  The case settled during the first week of trial, in the middle of Grinstein’s cross-examination of Waymo’s lead technical witness.
• In August 2017, Grinstein represented Personalized Media Communications (PMC) in an arbitration to resolve its long-running licensing dispute with TiVo, formerly known as Gemstar-TV Guide International and Rovi Guides.  TiVo had contended that, under its licensing agreement with PMC, it had the exclusive right to enforce infringement actions for functionality not performed by the program guide, but rather performed by digital set-top-boxes, such as the delivery of digital programming content.   In November 2017, the arbitrator (retired U.S. District Court Judge David Folsom) rejected TiVo’s interpretation and found in favor of PMC on all issues.  Thereafter, on November 22, 2017, Judge Roy Payne of the United States District Court for the Eastern District of Texas entered Final Judgment in favor of PMC.
• In February 2016, a team of Susman Godfrey lawyers including Grinstein tried a case in federal district court in San Juan, Puerto Rico on behalf of the nation’s largest retailer, regarding the constitutionality of certain provisions of Puerto Rico’s Alternative Minimum Tax.  Grinstein was involved in all aspects of the case, including examining both sides’ constitutional and tax experts at trial.  In March 2016, the district court issued its opinion, declaring the challenged AMT provisions to violate the dormant commerce and equal protection clauses of the U.S. Constitution, in addition to the Federal Relations Act.  The district court then enjoined further enforcement of these AMT provisions.  There is a significant jurisdictional hurdle to challenging state (or commonwealth) taxes in federal court, so this ruling was a rare instance in which such a tax has been held unconstitutional by a federal district judge.Puerto Rico then appealed the district court’s ruling.  In June 2016, Grinstein argued the appeal to the United States Court of Appeals for the First Circuit. In August 2016, the First Circuit upheld the injunction and affirmed the district court in full.  To hear the audio of Grinstein’s oral argument, click here (starting at 21:55).
• In June 2015, Grinstein – along with a team of lawyers from Susman Godfrey and co-counsel – obtained a $31.5 million jury verdict on behalf of his client, DataQuill Ltd., in a patent case tried in federal court in the Eastern District of Texas.  DataQuill alleged that Defendant ZTE (USA) Inc. infringed two DataQuill patents relating to smartphone technologies.  Among other things, Grinstein argued for DataQuill at the Markman hearing, and at trial he handled both sides’ damages witnesses and presented DataQuill’s inventor.  After receiving the case, the jury took less than 45 minutes to render its verdict in favor of DataQuill.  Final judgment on the verdict has not yet been entered.

• In May 2012, Grinstein – along with a team of lawyers from Susman Godfrey and co-counsel Heim, Payne & Chorush – obtained a $15.4 million verdict on behalf of his client, PACT XPP Technologies, AG, in federal court in Marshall, Texas. PACT alleged that Xilinx, Inc. and Avnet, Inc. had infringed two of PACT’s patents via their sale of certain Xilinx-branded Field Progammable Gate Array (FPGA) devices. The jury found that both PACT patents were infringed and valid, and it further determined Xilinx’s infringement to be willful. Grinstein was first chair at trial, handling PACT’s opening statement and closing argument, as well as presenting or cross-examining several key witnesses.

  In September 2013, the District Court entered judgment on the verdict.  After enhancing the jury’s verdict and awarding attorney’s fees on account of the willfulness finding as well as adding costs and interest, the judgment in PACT’s favor totaled approximately $44 million.  The case settled for a confidential amount while on appeal.

  In recognition of Grinstein’s accomplishments on the case, the September 16, 2013, edition of The Texas Lawyer named him “Litigator of the Week” and printed a story in which he was quoted and pictured.

• In 2008 and 2009, Grinstein represented a group of more than forty health plans (who between them comprise more than 70% of the U.S. market for private health insurance) asserting healthcare reimbursement liens against claimants to the $4.85 billion Vioxx compensation fund. Grinstein handled all arguments for the health plans before the District Court and later the Fifth Circuit. In January 2009, Grinstein’s clients reached a groundbreaking settlement with the Vioxx Plaintiffs’ Steering Committee, guaranteeing them certain payouts on their liens covering participating plaintiffs. The American Lawyer magazine featured this settlement and mentioned Grinstein in the “Big Suits” column of its April 2009 issue.

• In February 2008, Grinstein scored two appellate wins for the same client, Nevada Gold & Casinos, in the space of just two weeks. First, following Grinstein’s November 2007 appellate argument, the Texas Court of Appeals (First District) on February 7, 2008, affirmed the $8.3 million verdict that Grinstein and one other Susman Godfrey lawyer had obtained for Nevada Gold against American Heritage in April 2006. In an unrelated case for the same client, Grinstein and a team of Susman Godfrey lawyers obtained in January 2007 summary judgment against Rinaldo Corporation’s tortious interference claims against Nevada Gold, in which Rinaldo was seeking more than $300 million. Grinstein argued the Rinaldo appeal on February 11, 2008, and, on February 15, 2008, the California Court of Appeals (Fifth District) affirmed the summary judgment order, absolving Nevada Gold of all alleged liability.

• In September 2007, Grinstein and a team of Susman Godfrey lawyers obtained a $30.5 million jury verdict on behalf of his client, UniRAM Technology, Inc., in a trade secrets case tried in federal court in San Francisco. After interest and costs, the trial court later entered judgment in favor of UniRAM for approximately $36 million. UniRAM alleged that defendant Taiwan Semiconductor Manufacturing Corp. (TSMC) had misappropriated UniRAM’s trade secrets regarding specialized computer memory devices known as embedded DRAM. Among other things, Grinstein handled both sides’ damages witnesses at trial, and he cross-examined TSMC’s principal technical expert. News of the verdict was reported widely in both the U.S. and Taiwan. Verdict Search listed the verdict as one of the top 100 plaintiff’s verdicts nationally in 2007, and the Los Angeles Daily Journal pegged it as one of the top 10 plaintiff’s verdicts in California in 2007. The case settled on confidential terms while on appeal.

• In April 2006, Grinstein and one other Susman Godfrey lawyer represented Nevada Gold & Casinos in a breach-of-contract trial relating to the development of a Native American casino in New Mexico. Following a three-week trial in Houston, the jury returned a verdict awarding Nevada Gold essentially all of the damages it claimed. In October 2006, after extensive post-trial briefing, the trial court entered judgment in favor of Nevada Gold and against the defendant, American Heritage, Inc., for over $9 million.

• In 2004 and 2005, Grinstein and a team of Susman Godfrey lawyers represented MicroUnity Systems Engineering, Inc. in its patent infringement lawsuit against Intel, Corporation and Dell, Inc. MicroUnity alleged that Intel’s Pentium III, Pentium 4, and Pentium M processors, and Dell’s use of those processors, infringed several MicroUnity patents covering “mediaprocessor” technology. Grinstein was involved in all aspects of the case, including arguing the Markman hearing. In October 2005, one month before trial was to commence, the parties reached a confidential settlement of the case, the financial terms of which Intel disclosed in its Third Quarter 2005 10-Q. Articles discussing the importance of the case and the magnitude of the settlement appeared in the New York Times, the Wall Street Journal, the San Francisco Chronicle, the San Jose Mercury News, and various high-tech websites.

• In 2003 and 2004, Grinstein and several additional Susman Godfrey lawyers tried two bankruptcy plan confirmation hearings — In re The Babcock & Wilcox Company (three weeks of trial time) and In re Pittsburgh Corning Corporation (one week of trial time) — representing the interests of Certain Underwriters at Lloyd’s, London and Certain London Market Companies. Grinstein’s clients settled the Babcock & Wilcox dispute, while Pittsburgh Corning eventually withdrew the bankruptcy plan to which his clients objected.

• In 2003, Grinstein won an appeal he briefed and argued to the United States Court of Appeals for the Fifth Circuit regarding the scope of ERISA plans’ subrogation and reimbursement rights. The Fifth Circuit’s opinion was the subject of a front-page article in the December 29, 2003, issue of The Texas Lawyer, in which Grinstein was quoted and pictured.

• In 2003, Grinstein tried with one additional Susman Godfrey lawyer an arbitration involving claims against Service Corporation International under the Texas Securities Act. Grinstein’s clients, James P. Hunter, III, and the James P. Hunter, III, Family Partnership Limited, won the arbitration and were awarded $27.8 million by the panel of arbitrators.

• In 2002, Grinstein tried with two additional Susman Godfrey lawyers an arbitration claim brought by his client, Lyondell Chemical Co., against Atlantic Richfield Company (ARCO), involving the sale of MTBE. The arbitrator granted most of Lyondell’s claims against ARCO, and as a result ARCO agreed to pay Grinstein’s client an eight-figure net settlement.

• In 2001, Grinstein obtained class certification from the Middle District of Florida for a class of African-American employees of Western Auto Supply Co. (now owned by Advance Stores Company, Inc.) who were suing the former auto parts retailer for racial discrimination. The defendants immediately appealed the certification decision to the United States Court of Appeals for the Eleventh Circuit. Grinstein briefed and argued the appeal, and the Eleventh Circuit affirmed the class certification decision — the first such class action the Eleventh Circuit had upheld in decades. The case settled in 2003, with the defendants making a substantial payment to the class.

American Bar Association, Texas state bar, and the Houston Bar Association.