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Primary Practice Areas:

Industry Focus:

Education:

  • Temple University Law, J.D.
  • Pennsylvania State University, M.S. Engineering Mechanics
  • Pennsylvania State University, B.S. Mechanical Engineering Technology
  • Pennsylvania State University, A.S. Mechanical Engineering Technology

Bar Admissions:

  • Delaware
  • Pennsylvania
  • United States Patent and Trademark Office (USPTO)
  • United States Court of Appeals for the Federal Circuit
  • United States District Court for the District of Delaware
  • United States District Court for the Eastern District of Pennsylvania
  • United States District Court for the Middle District of Pennsylvania
  • United States District Court for the Western District of Pennsylvania

Languages:

  • English

Dennis J. Butler works with innovators to protect their new developments and enforce their existing intellectual property rights. Dennis has specific experience helping medical device inventors protect their inventions at the US Patent Office and international patent offices, as well as defending against and enforcing intellectual property rights in US Courts, particularly the United States District Court for the District of Delaware and the Eastern District of Pennsylvania.

Dennis J. Butler is a Delaware and Pennsylvania attorney who helps innovators protect their inventions and companies protect their intellectual property. Dennis’ practice focuses on intellectual property and technology law, including representing clients in the U.S. District Court for the District of Delaware and additional U.S. district courts, as well as before the U.S. Patent and Trademark Office and foreign patent offices.

Dennis has extensive experience in preparation, filing and prosecution of patent applications and inter partes practice before the U.S. Patent Trial and Appeal Board. Dennis has extensive experience conducting in-person and remote interviews with U.S. patent examiners to expedite allowance of U.S. patents. His practice is concentrated in mechanical technologies, including medical devices, polymer systems and materials, industrial equipment, automotive and agricultural equipment, supply chain technologies, structural composite assemblies, orthopedic devices and methods, consumer goods and electro/mechanical devices.

Prior to joining Panitch Schwarze Belisario & Nadel, LLP, Dennis was patent counsel at Synthes, Inc., where he managed the patent portfolio, assisted with patent litigation, formulated business arrangements and analyzed mergers and acquisitions for the spinal implant division. He was previously an associate and patent agent at Akin Gump Strauss Hauer & Feld LLP and an engineer with Boeing Defense and Space Group, Helicopters Division and United Technologies – Pratt & Whitney.

His practice also focuses on patent litigation on behalf of both plaintiffs and defendants. He has worked on cases involving a wide variety of technologies, including medical devices, cellular telephones, electronic monitoring systems, smart phone technologies, industrial equipment, electrical equipment, medical testing equipment, supply chain systems, and banking processes.

Dennis received his J.D. from Temple University’s Beasley School of Law while working full-time at Boeing Defense and Space Group and Akin Gump Strauss Hauer & Feld LLP. He received his A.S. and B.S in Mechanical Engineering Technology and M.S. in Engineering Mechanics from the Pennsylvania State University.

Dennis is a member of the Delaware Bar, the Pennsylvania Bar, Penn State Alumni Association, the Irish American Business Chamber and Network and the Delaware County Chamber of Commerce. He is registered to practice before the U.S. Patent and Trademark Office as well as before the U.S. District Court for the District of Delaware, Eastern, Central and Western Districts of Pennsylvania.

 

Memberships
  • Irish American Business Network and Chamber of Commerce
  • Penn State Alumni Association
  • Delaware County Chamber of Commerce

 

Testimonials

“I have worked with Dennis Butler, at Panitch Schwarze Belisario & Nadel, LLP on various patent matters for over 15 years. His attention to detail, quality of work, cost-effectiveness and responsiveness is tremendous.”

– Bob Rauker, Belluscura Ltd.

 

“We have worked with Panitch Schwarze Belisario & Nadel, LLP for years for our intellectual property needs across the board. Attorneys Dennis Butler and Ragi Elias are very professional, thorough, and a pleasure to work with. We have a small internal team, so we are very pleased when the team at Panitch can take very limited direction from us and follow-through with a well thought out plan and complete documentation for our review. They provide great advice and augment our technical team very well.”

– Anonymous

  • Louis Allis, LLC v. Ideal Electric Power Co., Delaware, representing defendant, Ideal, trademark infringement and unfair competition
  • ImmerVision, Inc. v. LG Electronics Inc., Delaware, represented plaintiff ImmerVision, Inc., patent infringement
  • Inter Partes Reexaminations of U.S. Patent No. 6,844,990, PTAB, represented patent owner ImmerVision, Inc., patent infringement
  • Elemica, Inc. v. ecMarket Inc. d/b/a Conexiom Inc., Delaware, represented plaintiff Elemica, Inc., breach of contract, and violation of defend trade secrets act
  • Eduard Wüsthof Dreizackwerk KG v. Matthew Scott Kriegsfeld, Southern District of California, represented plaintiff Eduard Wüsthof Dreizackwerk KG, trademark counterfeiting, trademark infringement, trademark dilution, false designation of origin, and unfair competition
  • Slingmax, Inc. v. Marca Rope & Rigging, Inc., et al., Eastern District of Missouri, represented plaintiff Slingmax, Inc., trademark infringement, trademark counterfeiting, false designation of origin, unfair competition,
  • PeriRx, Inc. v. The Regents of the University of California, et al., Eastern District of Pennsylvania, represented defendant The Regents of the University of California, breach of contract, breach of implied covenant of good faith and fair dealing,
  • Aedes Technologies, LLC v, Lowe’s Companies, Inc. et al., Delaware, represented patent owner Aedes Technologies, LLC, patent infringement
  • Aedes Technologies, LLC v. Home Depot, Inc., Delaware, represented patent owner Aedes Technologies, LLC, patent infringement
  • Cedar Lane Technologies v Leviton Manufacturing Co., Inc., Delaware, represented defendant Leviton Manufacturing Co., Inc., patent infringement
  • J Morita MFG. Corp. v. Dental Imaging Technologies Corporation, Eastern District of Pennsylvania, representing patent owner J Morita MFG. Corp., patent infringement
  • Brentwood Industries, Inc. v. EPolytech Mfg Sys, LLC, et al., Eastern District of Pennsylvania, represented plaintiff Brentwood Industries, Inc., misappropriation of trade secrets, breach of contract, and conversion of trade secrets
  • Tamr, Inc. v. Nor Labs, Inc., Delaware, false designation of origin, unfair competition, anticybersquatting, and trademark infringement
  • Koninklijke KPN N.V. v. BLU Products, Inc., Delaware, represented defendant BLU Products, Inc., patent infringement
  • Baby Merlin Company v. CribCulture, LLC, et al., Eastern District of Pennsylvania, represented plaintiff Baby Merlin Company, trademark infringement, unfair competition, false advertising,
  • Immunotope, Inc. v. Captivate Pharmaceuticals, LLC, Eastern District of Pennsylvania, represented defendant Captivate Pharmaceuticals, LLC, breach of contract, unjust enrichment, and promissory estoppel
  • Mystic Pizza, LLC et al. v. Mystic Pizza Company et al., Eastern District of Pennsylvania, represented defendant Mystic Pizza Company et al., cybersquatting, trademark infringement, unfair competition, false designation of origin, trademark dilution,
  • Telescopic Seating Systems, LLC v. HIG Cinema Intermediate Holdings, Inc. et al., Eastern District of Pennsylvania, representing patent owner Telescopic Seating Systems, LLC, patent infringement
  • Zig Zag Innovations, LLC v. Leviton Manufacturing Co., Inc., Delaware, represented defendant Leviton Manufacturing Co., Inc., patent infringement
  • Martinson Industries, LLC v. Phalanx Defense Systems, Inc., Florida, represented defendant Phalanx Defense Systems, Inc., patent infringement, unfair competition, false marking, breach of competition, tortious interference
  • Emerson Radio Corporation v. Emerson Quiet Kool Co. Ltd. et al., Delaware, represented Emerson Quiet Kool Co. Ltd. et al., trademark infringement, unfair competition, false designation of origin, false advertising, anticybersquatting, cancellation of trademark registration, and trademark dilution
  • Emerson Electric Co. v. Emerson Quiet Kool Co. Ltd. et al., Delaware, represented Emerson Quiet Kool Co. Ltd. et al., trademark infringement, unfair competition, false designation of origin, trademark dilution, anticybersquatting, breach of contract, and cancellation of trademark registration
  • Skyline Toolworks LLC v. Techna Clip, LLC, Pennsylvania, represented defendant Techna Clip, LLC, patent infringement
  • Miller Edge, Inc. v. ASO GmbH u. Co. KG, et al., New Jersey, represented plaintiff Miller Edge, Inc., patent infringement
  • Herrick Tackle LLC v. Outdoor Performance Gear, LLC d/b/a Tundra Tackle Co., Minnesota, represented plaintiff Herrick Tackle LLC, patent infringement
  • Life Alert Emergency Response, Inc. v. Excelsis Investments, Inc. d/b/a Stealth Technologies, Inc., Delaware, represented plaintiff Life Alert Emergency Response, Inc., patent infringement
  • Maxell, Ltd. v. BLU Products, Inc., Delaware, represented defendant BLU Products, Inc., design patent infringement, copyright infringement
  • Brentwood Industries, Inc. v. Stinger Equipment, Inc., Kentucky, represented plaintiff Brentwood Industries, Inc., patent infringement
  • AMI Entertainment Network, LLC v. E La Carte, Inc., Delaware, represented plaintiff AMI Entertainment Network, LLC, patent infringement
  • SC Botanicals, LLC v. Intragenix Holdings, LLC, et al., Delaware, represented defendant Intragenix Holdings, LLC, et al., breach of contract, tortious interference with contract, misappropriation of trade secrets, fraud and fraudulent inducement, conversion, conspiracy
  • Alex is the Best, LLC v. BLU Products, Inc., Delaware, represented defendant BLU Products, Inc., patent infringement
  • Regalo International, LLC v. Munchkin, Inc., Delaware, represented plaintiff Regalo International, LLC, patent infringement
  • Air Dynamics Industrial Systems, Inc. v. D. Aaron Lehman, et al., Middle District of Pennsylvania, represented defendant D. Aaron Lehman, et al., patent infringement, trade secret misappropriation, conversion, tortious interference with prospective contracts, tortious interference with existing contracts, breach of duty of loyalty, unfair competition
  • JSDQ Mesh Technologies LLC v. Leviton Manufacturing Company, Inc., Delaware, represented defendant Levison Manufacturing Company, Inc., patent infringement
  • Inter Partes reexamination of U.S. Patent No. 7,945,498, PTAB, represented third- party requester Elemica, Inc.
  • LaserMax, Inc. v. Sellmark Corporation, Delaware, represented plaintiff LaserMax, Inc., patent infringement
  • New Balance Athletics, Inc. v. USA New Bunren International Co. Limited LLC, Delaware, represented defendant USA New Bunren International Co. Limited LLC, trademark infringement, trademark dilution, false designation of origin, deceptive trade practices, unjust enrichment,
  • Candella, LLC v. Primitives by Kathy, Inc., Minnesota, represented defendant Primitives by Kathy, Inc., patent infringement
  • Tuition Fund, LLC v. Cartera Commerce, Inc., Tennessee, represented defendants Cartera Commerce, Inc. and on Vesdia Corp., patent infringement
  • Inter Partes Reexamination of U.S. Patent No. 8,230,816, PTAB, represented third- party requester Carlson Pet Products, Inc.
  • Advertising Specialty Institute, Inc. v. Landmark Corporate Marketing Services Ltd., E.D. Pa., represented defendant, Landmark Corporate Marketing Services Ltd., misappropriation of trade secrets and breach of contract
  • DMI Sports, Inc. v. Regents Sports Corp., E.D. Pennsylvania., represented plaintiff, DMI Sports, Inc., patent infringement
  • Named a Pennsylvania “Super Lawyer,” 2021 – 2024, by Thomson Reuters, publishers of Pennsylvania Super Lawyers
  • Named a Pennsylvania “Rising Star,” 2012 – 2013, by Thomson Reuters, publishers of Pennsylvania Super Lawyers
  • Named Among Irish Legal 100
  • Patent 1000, IAM, Recommended Lawyer, 2024

Dennis is actively involved in the Irish community and various Pennsylvania State University activities. Dennis lived in Dublin, Ireland and attended the University College Dublin to study European anti competition law and patent law. Dennis was also on the U.S. organizing committee for the U.S./Ireland Legal Symposium held in Westport, County Mayo. On fall Saturday’s, Dennis supports the Penn State Nittany Lion football team from Centre County tailgate lots and the stands in Beaver Stadium.

Dennis Bulter shaking hands with colleagueDennis Bulter speaking at Penn State Harrisburg graduationDennis Bulter with family at Penn State sporting event

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Panitch Schwarze commits the time to listen to and evaluate each client’s unique needs so we can advise on the best forms of IP protection.

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