Garret A. Leach, P.C. - Partner

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Garret A. Leach, P.C.

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Phone: +1 312-862-2363
Fax: +1 312-862-2200
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Professional Profile

Garret Leach is a nationally recognized first chair trial lawyer who focuses on patent and other intellectual property litigation. He is a registered patent attorney and has successfully led litigation teams in district courts throughout the country as well as at the International Trade Commission. He has also argued for his clients before the U.S. Court of Appeals for the Federal Circuit and the Patent Trial and Appeal Board. His appellate arguments include a successful argument in front of the entire Federal Circuit sitting en banc.

Garret has litigated and counseled a diverse mix of clients across a variety of technologies, including protective cases, lighting fixtures, food packaging, website functionality, dental compounds, windshield wipers, cosmetics, abrasives and automotive glass.

In addition to litigating throughout the country, Garret has taken an active role as a past President and Board Member of the Intellectual Property Association of Chicago. He has used the experience and relationships he has developed to help clients navigate difficult intellectual property issues and, where possible, avoid litigation.

In 2018, Garret was recognized as an “Intellectual Property Trailblazer” by The National Law Journal and was listed in Chambers USA, America's Leading Lawyers for Business for Intellectual Property. In 2015, Garret was recognized by The Legal 500 U.S. In 2013, he was recognized by the Financial Times as an “Innovative Lawyer” for his work on a successful ITC matter and related Federal Circuit Appeal. Since 2012, Garret has been named an “Illinois Super Lawyer” by Super Lawyers magazine.

Representative Matters

Valspar v. PPG, 16-cv-1429 (D.Minn.): patent case involving beverage can coatings

Otter Products v. Speculative Product Design and Tech 21, (ITC 337-TA-955): patent case involving protective cases.

UbiComm v. W.W. Grainger, 13-cv-4936 (N.D. Ill.): patent case involving reminders for abandoned online shopping carts

LifeProof v. Seidio, Civil Action 13-cv-0158 (S.D. Cal.): patent case involving protective cases

LifeProof v. Joy Factory, Civil Action 13-cv-0159 (S.D. Cal.): patent case involving protective cases

Patent Group v. esurance, Civil Action 2:12cv25 (E.D. Tex.): patent case involving rotating webpage technology

Soverain Software v. W.W. Grainger, Civil Action 6:12cv146 (E.D. Tex.): Patent case involving online shopping cart technology

GE Lighting v. LSG, Civil Action 1:12-cv-03132 (N.D. Ohio): patent case involving LED lighting technology

Otterbox v. LifeProof, Civil Action No. 1:11-cv-02180 (D. Colo.): patent case involving iPhone cases

Bosch v. Pylon, et al., (ITC 337-TA-816): patent case involving windshield wiper technology

EMG Technology, LLC v. Radio Shack Corp. et al., Civil Action No. 6:11-cv-488 (E.D. Tex.): patent case involving manipulation of Internet content

Pall Corp. v. 3M Purification, Civil Action No. 03-00092 (E.D.N.Y.): patent case involving filter technology

DataTern v. Eli Lilly, et al., Civil Action No. 2:10-cv-00413 (E.D. Tex.): patent case involving object/relational mapping tools

Lumination LLC v. Fawoo Tech North America LLC, et al., Civil Action No. 1:10-cv-01069 (N.D. Ohio): patent case involving LED lighting technology

TQP Development, LLC v. Bank of New York Mellon Corp., et al., Civil Action No. 2:10-cv-085 (E.D. Tex.): patent case involving encryption technology

Green v. ConAgra, Civil Action No. 8:08-CV-200 (D. Neb.): patent case involving microwave packaging

Parallel Networks v. et al., Civil Action No. 2:08-CV-45 (E.D. Tex.): patent case involving dynamic web page generation

Baxter et. al. v. Fresenius, Civil Action No. C 07-01359 (N.D. Cal.): patent case involving dialysis machines

Arbitron v. Ipsos, et al., Civil Action No. 2-06CV-434 (E.D. Tex.): patent case involving media monitoring devices

3M v. Kerr Corporation, Civil Action No. 07-C-0087-C (W.D. Wis.): patent case involving dental composites

LML v. Telecheck et. al., Civil Action No. 04-858 (D. Del.): patent case involving electronic checking

B&H Manufacturing v. Kraft Foods, Civil Action No. 06 CV 284 (E.D. Cal.): patent case involving labeling machinery

Nature's First v. Kraft Foods and Sara Lee, Civil Action No. 2:06 CV 284 (E.D. Tex.): patent case involving agglomerated milk topping

TriStrata Technology v. Zirh International, Civil Action No. 1:06 CV 651 (D. Del.): patent case involving cosmetic formulas

Prokop v. 3M, Civil Action No. 5:05-CV-01249 (W.D. Okla.): patent case involving gel-filled computer wrist rests

Schwan's IP, LLC. v. Kraft Pizza Company, Civil Action No. 04-125 (D. Minn.): trademark case involving brick oven style pizza

Chase Products Company v. CCL Industries, Inc. and Zotos International, Inc., Civil Action No. 03 C 8142 (N.D. Ill.): patent case involving containers for hair products

Sargento Foods, Inc. v. Kraft Foods Inc., et al., Civil Action No. 02 C 0555 (W.D. Wis.): patent case involving food packaging incorporating slider zipper mechanisms

Action Gaming, Inc. and IGT v. Alliance Gaming Corp., et al., Civil Action No. CV-01-1109 (D. Nev.): patent case involving method for playing video poker

Ole K. Nilssen v. Osram Sylvania, Inc., Civil Action No. 01-CV-3585 (N.D. Ill.): patent case involving electronic ballasts

Zotos International, Inc. v. Vernico Products Ltee., et al., Civil Action 00-C-6793 (N.D. Ill.): patent case involving chemical formulation of hair perming products

International Game Technology v. Aristocrat Technologies Inc., et al., Civil Action No. CV-S-01-1498 (D. Nev.): patent case involving various features related to gaming machines

Wiand v. Minnesota, Mining & Manufacturing, Civil Action No. 99-C-4724 (E.D. Mich.): patent case involving abrasive brushes

Fort James Corporation v. Solo Cup Company, Civil Action No. 99-C-0827 (E.D. Wis.): patent case involving paper board products

Kraft Foods, Inc. v. International Trading Co., Civil Action No. 98-C-0491-S (W.D. Wis.): patent case involving lunch combination products and packaging

Village of Pinehurst v. Clubcorp Inc., Clubcorp Resorts Inc., and Pinehurst, Inc., Civil Action No. 1:99 CV 00771 (M.D.N.C.): trademark case involving use of the Pinehurst name

Motorola, Inc. v. Qualcomm, Inc., Civil Action No. 97-372 (RBB) (S.D. Cal.): patent and trade secret case involving various aspects of cellular telephones

Time Inc. v. Petersen Publishing Co., Civil Action No. 97-5879 (HB) (S.D.N.Y.): trademark case involving Teen People magazine

Security and Access et al. v. Motorola, Inc., Civil Action No. 96-287 (SLR) (D. Del.): patent case involving electronic locking feature on cellular telephones

PPG Industries Inc. v. Guardian Industries Corp., Civil Action No. 94-1112 (W.D. Pa.): patent case involving chemical formulations for automotive glass

Memberships & Affiliations

Member of the Trial Bar for the Northern District of Illinois

Intellectual Property Law Association of Chicago - Past President and Board Member


1999, U.S. District Court for the Northern District of Illinois, Trial Bar

1999, U.S. District Court for the Eastern District of Wisconsin

1999, U.S. Court of Appeals for the Federal Circuit

2000, U.S. District Court for the Eastern District of Michigan

2004, U.S. Court of Appeals for the 7th Circuit

2006, U.S. District Court for the Western District of Wisconsin

2007, U.S. District Court for the Southern District of Illinois

2008, U.S. District Court for the District of Nebraska

2011, U.S. District Court for the Eastern District of Texas

2011, U.S. District Court for the District of Colorado

2014, U.S. Court of International Trade

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