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David P. Pearson

p (612) 604-6692   f (612) 604-6892 
Northwestern University School of Law, J.D., 1976
Northwestern University, B.A., 1972
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David P. Pearson represents clients throughout the United States in complex commercial and insurance-related litigation. Dave’s active trial practice focuses on securities litigation, representation of insurance companies in claims and coverage litigation, and IP litigation. For more than 25 years, he has been extensively involved in securities litigation, and has defended numerous public corporations and their directors and officers against claims of securities fraud. Dave’s practice in this area also includes representation of public companies in SEC investigations. Dave has a very active insurance coverage practice and has represented insurers in a broad spectrum of coverage disputes.  His particular focus has been in coverage disputes arising from professional liability, healthcare and fidelity policies, and he has successfully tried coverage and policy interpretation cases. Dave has also defended insureds, including banks, securities broker-dealer firms, life insurance companies, financial services companies, insurance agencies and others, in a wide range of professional liability, employment and other litigation. His practice also involves representation of major broker-dealer firms and registered representatives in securities industry arbitration proceedings, and he has tried numerous FINRA arbitrations involving claims of fraud, suitability, churning and violation of industry rules. In his intellectual property practice, Dave has litigated and tried to a jury patent infringement claims involving diverse technologies and fields of invention.

Bar Admissions
Minnesota, 1976
U.S Court of Appeals, Eighth Circuit
U.S. Court of Appeals, Ninth Circuit
U.S. Court of Appeals, Federal Circuit
U.S. Supreme Court

Representative Cases

Securities Litigation Cases

Representation of National Union and Starr Excess in an action brought by UnitedHealth Group, Inc., seeking coverage for a $350 million class action settlement, a case resulting in significant, precedent-setting insurance coverage decisions from the District of Minnesota. UnitedHealth Group Inc. v. Columbia Cas. Co., 941 F.Supp.2d 1029 (D. Minn. 2013) and UnitedHealth Group Inc. v. Columbia Cas. Co., 47 F.Supp.3d 863 (D. Minn. 2014).

Representation of a public corporation and its officers and outside directors in a securities fraud class action lawsuit involving allegations of accounting fraud, misrepresentations regarding the status and completion date of an IPO for a subsidiary of the corporation and other similar issues.  The Eighth Circuit Court of Appeals affirmed dismissal of the class action complaint in a significant decision regarding the interpretation of the PSLRA and pleading requirements for a securities fraud action.  In re:  Navarre Securities Corporation Litigation, 299 F.3d 735 (D.Minn. 2000)

Representation of the former CEO of the Metris Companies, Inc., in In Re Metris Companies, Inc. Securities Litigation, 428 F.Supp.2d 1004 (D. Minn. 2006). This case involved a claim for several hundred million dollars in damages against Metris based on allegations that the company failed to disclose internal business problems which arose, in part, from a review and investigation by the Office of the Comptroller of the Currency. The class action complaint alleged that CEO and the company were aware that Metris would not meet its earnings per share projections because of changes imposed on the company’s business operations by the OCC.  It was alleged that the companies and its officers misled investors by making positive comments about the company and by failing to disclose negative information. This case also involved an investigation by the SEC and the OCC.

Representation of the former President and COO of NorthWestern Corporation, a South Dakota-based public utility, in In Re NorthWestern Corporation Securities Litigation. This case involves allegations that NorthWestern Corporation and our COO client failed to disclose problems about the company’s internal computer system and associated problems with accounts receivables and accounts receivables aging.  The complaint alleged that the company made misleading statements regarding earnings projections and failed to disclose, and indeed hid, negative information about serious problems in the operating results of and the business prospects for various subsidiaries of NorthWestern Corporation.  See In Re NorthWestern Corporation Securities Litigation, 329 F.Supp.2d 1105 (D.SD 2004).

Representation of board members in Cohen v. Exp@nets, Inc., a class action securities fraud case involving alleged representations about an “imminent” IPO that induced owners of telecom companies to sell their businesses to Exp@nets.  Exp@nets bought a series of small telecom companies as part of a business rollup model.

Representation of officers and directors of a corporation in a securities fraud action  involving alleged failure to disclose financial problems in an acquired subsidiary.

Successful defense of the president of an investment adviser in an SEC action arising out of substantial losses in a $600,000,000 mutual fund that had invested heavily in derivative securities in In The Matter of Piper Capital Management, Inc., et al. After a nine week trial, our client was the only defendant who was exonerated from wrongdoing and liability.

Representation of officers and directors of a public company alleged to have failed to disclose potential risks of future business expansion which involved the legal significance of cautionary language in offering documents disseminated to the investing public.

Representation of major accounting firms in litigation involving the failure to ascertain and disclose the financial condition of a public company in audited financial statements.

Representation of officers/employees of Ceridian Corporation in an SEC investigation involving restatement of financial statements and alleged failure to follow accounting rules in connection with various transactions, thereby inflating earnings.

Intellectual Property Litigation

3M Innovative Properties Company and Minnesota Mining and Manufacturing Company v. Avery Dennison Corporation, Case Number 01-1781 JRT/FLN—This case involved a patent infringement action brought against Avery Dennison Corporation, Winthrop & Weinstine’s client, alleging infringement of a patent pertaining to the use of embossed webs as liners for pressure sensitive adhesives and other industrial applications, and which specifically involved a multiple embossed web used as a releasable storage liner for pressure sensitive adhesives for moving a pressure sensitive adhesive from one web to a substrate. This case was tried before a jury in the federal district court in Minnesota.

Hysitron Incorporated v. MTS Systems Corporation, Case Number 07-1533 ADM/AJB—We defended MTS Systems in a patent infringement action in the field of nanomechanical testing devices. The patent in question related to an apparatus, a force sensor, used in conjunction with microindentation hardness testing and scanned-probe microscopes which generates a surface image of the topography of the sample subjected to microindentation.

DB Industries, Inc. d/b/a DBI SALA v. Alexander Andrew, Inc. and Custom Leathercraft Mfg. Co. d/b/a FallTech, Case Number 05-2806 (JMR/FLN)—Winthrop & Weinstine represented the plaintiff, a leader in the fall safety protection industry, in this patent infringement action relating to the enforcement of a patent which covered several innovations for a safety harness used by workers who work at elevation. This matter was settled favorably for our client.

Travelers Express Company, Inc. v. Transaction Tracking Technologies, Inc., Case Number 03-2848 (DSD/JGL)—In this action Winthrop & Weinstine represented the defendant in a patent infringement action involving a series of patents pertaining to technology for dispensing money orders and which provided multiple levels of securities codes, network capabilities for centralized collection of transaction data and centralized control, and other anti-fraud and anti-tampering features used in connection with the issuance of money orders. This case was settled favorably for our client.

MTS Systems Corporation v. Hysitron Incorporated, Case Number 06-3853 MJD/AJB—In this case Winthrop & Weinstine is bringing a patent infringement action on behalf of its client, MTS Systems, seeking to enforce its client’s patent which pertains to a dynamic tensile testing system that applies tensile loads to microfibers to measure and ascertain the mechanical properties of such fibers, including fibers with diameters of 1 to 60 microns. This case is presently pending in the federal district court for Minnesota.

Digital Angel Corporation v. Datamars, Inc
., Case Number 04-4554 ADM/JSM—Winthrop & Weinstine represented the plaintiff in this patent infringement action involving a patent covering technology for a syringe implantable radio frequency identification device used for small animal identification. The case was settled favorably for our client.

Four Paws Products, Ltd. v. Royal Pet Incorporated—U.S. District Court, Eastern District of New York. We represented Royal Pet Incorporated in a patent litigation matter involving pet waste retrieval/removal products. Four Paws brought a Motion for Preliminary Injunction against our client, Royal Pet Incorporated, which was denied by the Court.

Schaefer Fan Co., Inc. and Ronald E. Schaefer v. Universal Fog, Inc., Case Number 99-CV646 DWF/RLE—Winthrop & Weinstine successfully defended a patent infringement action on behalf of its client Universal Fog against a patent and a related consent judgment involving a spacing device designed to enhance safety for grills on a fan.

Miller Manufacturing Company, v. Royal Pet Inc., Case Number 05-2803 DWF/SRN—U.S. District Court, District of Minnesota. We represented Royal Pet Incorporated in a patent litigation matter involving tools to pick up pet waste. Ultimately this case was settled between the parties.

WIMCO, LLC v. Lange Industries, Inc., Case Number 06-cv-03565 PJS/RLE—Winthrop & Weinstine brought a successful patent infringement action on behalf of its client, Wimco, to enforce a patent covering a sediment filtration device used in conjunction with storm sewer construction. 

DB Industries (d/b/a DBI/SALA)—We have represented DB Industries in patent and trademark litigation for approximately 10 years. In the patent litigation field, we have commenced approximately nine patent infringement actions on behalf of DBI. DBI is a leader in the manufacture, sale and design of various safety products used in the construction industry. DBI has a large patent portfolio. Examples of our experience representing this client include the following:
  • International Dodge Inc. v. DB Industries—We successfully defended this patent infringement action brought against our client and won a motion for summary judgment in federal court in New York.
  • DBI v. Safewaze/MSA-Rose Manufacturing Company—We successfully prosecuted this action to enforce two DBI patents. Defendant asserted a patent infringement counterclaim. We successfully prosecuted this litigation which involved payment by the Defendant to DBI, cross-licensing rights, and certain other consideration.
  • DBI v. Ultrasafe, Inc.—We successfully defended DBI’s patent rights in this case and the Defendant agreed to pay damages and stop selling the alleged infringing product.
  • DBI v. Safewaze, Inc.—In this lawsuit we successfully defended another DBI patent. The litigation was resolved by the Defendant agreeing to pay damages to DBI and it further agreed to stop selling the alleged infringing product.
  • DBI v. Sellstrom Manufacturing—This case is another example of the successful prosecution of a patent infringement action on behalf of DBI. The Defendant agreed to pay damages and stop manufacturing the alleged infringing product.
  • DBI v. FallTech, Inc.—In this case we prosecuted a patent infringement action alleging infringement of three separate patents. The case was brought to a successful conclusion which involved payment of damages and modification of the alleged infringing product or the Defendant’s agreement to cease manufacture of the alleged infringing product.
  • DBI v. Miller Manufacturing Co.—This case involves the defense of several DBI patents. We are currently in settlement negotiations.
Press Releases

August 15, 2017
Twenty-Nine Winthrop & Weinstine Attorneys Named to 2018 “Best Lawyers In America” List

July 05, 2017
Thirty Winthrop & Weinstine Attorneys Named to Super Lawyers List

October 24, 2016
Benchmark Litigation 2017 Recognized Winthrop & Weinstine as “Highly Recommended”

August 15, 2016
Twenty-Six Winthrop & Weinstine Attorneys Named to 2017 “Best Lawyers In America” List

July 05, 2016
Forty-Six Winthrop & Weinstine Attorneys Named as Super Lawyers and Rising Stars

October 29, 2015
Benchmark Litigation 2016 Recognized Winthrop & Weinstine as “Highly Recommended”

August 17, 2015
Twenty-Five Winthrop & Weinstine Attorneys Named to 2016 “Best Lawyers In America” List

July 07, 2015
Twenty-Nine Winthrop & Weinstine Attorneys Named to Super Lawyers List

May 20, 2015
Winthrop & Weinstine Attorneys Recognized as "IP Stars" by National Publication

November 04, 2014
Benchmark Litigation 2015 Recognized Winthrop & Weinstine as "Highly Recommended"

August 18, 2014
Twenty-One Winthrop & Weinstine Attorneys Named to 2015 “Best Lawyers In America” List

July 07, 2014
Twenty-Eight Attorneys Named to Super Lawyers List

June 05, 2014
Winthrop & Weinstine Attorneys Recognized as "IP Stars" by National Publication

August 15, 2013
Twenty-One Winthrop & Weinstine Attorneys Named to 2014 “Best Lawyers In America©” List

July 08, 2013
Twenty-Four Attorneys Named as Super Lawyers®

September 19, 2012
Twenty Two-Attorneys from Winthrop & Weinstine Named to “Best Lawyers in America” List

July 09, 2012
Twenty-Three Winthrop & Weinstine Attorneys Named as Super Lawyers®

September 13, 2011
Seventeen Lawyers Listed in The Best Lawyers in America®

July 12, 2011
Minnesota Super Lawyers® Includes Over Twenty Attorneys at Winthrop & Weinstine

December 21, 2010
Winthrop & Weinstine Celebrates This Holiday Season with the Help of Local Talent

November 22, 2010
Sixteen Shareholders Named to Best Lawyers in America

Qtd. Schaust, Sam. "Vascular Solutions Shareholder Seeks Class Action Suit Over $1B Teleflex Deal."  Twin Cities Business. 1 February 2017.

"Developments in Age Discrimination," 2000

"Expert Witness Testimony in Employment Litigation," 1999

"Eighth Circuit Update: Employment Litigation," 1999

"Attorney-Client Privilege and Related Issues in the Employment Law Context," 1997

"Employment Discrimination Damages," 1996

"Effective Use of Statistical Evidence in Discrimination Cases," 1995

"Legal and Practical Issues in Reductions in Force," 1995

"Responsibilities and Liabilities of Professionals in the Securities Industry," 1999

"Public Statements by Public Companies: When to Speak and What to Say," 1999

Honors & Awards
  • "Local Litigation Star," Benchmark Litigation, 2015-2018
  • The Best Lawyers in America©
    • Commercial Litigation, 2007-2018
  • Ranked as an "IP Star," Managing IP, 2014-2015
  • Super Lawyers®, Securities Litigation, 2000-2002, 2004-2017
  • Ranked as “AV Preeminent” in LexisNexis Martindale-Hubbell’s peer review ratings

Community Involvement
  • America Intellectual Property Law Association
  • American Bar Association
  • Minnesota State Bar Association
  • Governing Counsel of the Labor and Employment Law Section, 1997-1998
  • Defense Research Institute
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