Dennis J. Butler

Dennis J. Butler

Practice Areas
Education
  • Pennsylvania State University, AS MET, BS MET
  • Temple University Law, Juris Doctor
  • Pennsylvania State University,  MS EMCH
Bar Admissions
  • Delaware Bar
  • Pennsylvania Bar
  • U.S. District Court for the Eastern District of Pennsylvania
  • U.S. Court of Appeals for the Federal Circuit
  • Supreme Court of Delaware      
  • United States District Court for the District of Delaware
     

Dennis J. Butler Partner

Philadelphia: 215.965.1282   Wilmington: 302.394.6006   F: 215.965.1331   E: dbutler@panitchlaw.com

Dennis J. Butler focuses his practice on intellectual property and technology law, including representing clients before the U.S. Patent and Trademark Office and foreign patent offices. Dennis has extensive experience in preparation, filing and prosecution of patent applications as well as inter partes and ex parte reexaminations and reissued patent applications before the U.S. Patent Office. Dennis also has extensive 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 implants, small appliances, automotive mechanisms, cleantech technologies, structural composite assemblies, bicycle technology, indoor games and electro/mechanical devices.

His practice also focuses on patent litigation on behalf of both plaintiffs and defendants. Dennis has experience with preparation and conducting hearings, including claim construction, summary judgment and preliminary injunction hearings, depositions and discovery. He has worked on cases involving a wide variety of technologies, including medical devices, composite materials, firearm accessories, software, business methods and banking processes.

Prior to joining Panitch Schwarze Belisario & Nadel LLP, Dennis was patent counsel at a global medical device company, where he managed their patent portfolio, assisted with patent litigation, formulated business arrangements and analyzed mergers and acquisitions. 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.

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 was an editor for the Temple Environmental Law and Technology Journal and won the TASA Prize for Outstanding Performance in the Field of Evidence. He received his 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, the Irish American Business Network and Chamber of Commerce, Penn State Alumni Association and the Nittany Lion Club. He is registered to practice before the U.S. Patent and Trademark Office and is admitted to practice before the U.S. Court of Appeals for the Federal Circuit, U.S. District Court for the District of Delaware, Eastern and Western Districts of Pennsylvania and Supreme Court of Delaware.

The Super Lawyers® list is issued by Thomson Reuters under criteria applied by Super Lawyers®. A description of the selection methodology can be found at http://www.superlawyers.com/about/selection_process.html.

Memberships

  • Irish American Business Network and Chamber of Commerce
  • FastStart Mentor Program, Mentor
  • Penn State Alumni Association

Representative Matters

  • 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
  • Candella, LLC v. Primitives by Kathy, Inc. Minnesota, represented defendant Primitives by Kathy, Inc., patent infringement
  • Inter Partes Review of U.S. Patent No. 8,469,113, PTAB, represented patent owner Schiller Grounds Care, Inc.
  • ImmerVision, Inc. v. CBC (America) Corporation, Delaware, represented plaintiff ImmerVision, 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.
  • Karl Storz Endoscopy-America Inc. v. Richard Wolf Medical Instruments Corp., N.D. Ill., represented defendant Richard Wolf Medical Instruments Corp., patent infringement
  • 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. Pa., represented plaintiff, DMI Sports, Inc., patent infringement
  • J. Kinderman & Sons, Inc. v. Inliten L.L.C., E.D. Pa., represented plaintiff, J. Kinderman & Sons, Inc., patent infringement.

Articles & Presentations

Panitch Schwarze to Remain as Litigation Counsel for Patent Owner
Dennis J. Butler continues to represent children’s furniture company in patent infringement case in federal court in District of Delaware Read more

PTAB Grants Rehearing of Patent in Delaware Litigation // February 4, 2016
In a rare move, the U.S. Patent Trial and Appeal Board recently granted rehearing of its denial to institute inter partes review of Greatbatch Ltd.’s U.S. Patent No. 7,327,553.  Read more

Dennis J. Butler Named Partner at Panitch Schwarze Belisario & Nadel // January 19, 2016
Dennis J. Butler brings deep experience with patent prosecution and litigation, including the increasingly important area of post-grant review. Read more

PTAB Rules in favor of BBiTV against Hawaiian Telcom // April 1, 2015
Panitch Schwarze Belisario & Nadel LLP is pleased to announce that today the United States Patent and Trademark Office’s Patent Trial and Appeal Board (PTAB) ruled in favor of its client Broadband iTV, Inc. (“BBiTV”).  Read more

Panitch Schwarze Successful in Defeating Inter Partes Review Attempt by Unified Patents Inc. // January 8, 2015
Panitch Schwarze Belisario & Nadel LLP is pleased to announce that on behalf of its client, Broad Band iTV (BBiTV), it has been successful in defeating an attempt by Unified Patents, Inc. to initiate an Inter Partes Review before the Patent Trial and Appeal Board against BBiTV’s patent.  Read more

Post-Grant Review // May 29, 2014
Dennis J. Butler, of Panitch Schwarze Belisario & Nadel LLP, will give a presentation on Post-Grant Review. Lunch will be served. CLE will be applied for but is not guaranteed. Read more

9 Panitch Schwarze Intellectual Property Attorneys Named Pennsylvania 'Super Lawyers' and 'Rising Stars' for 2013 // May 17, 2013
Pennsylvania "Super Lawyers" 2013 lists four attorneys from Panitch Schwarze Belisario and Nadel LLP as top lawyers in the state along with five attorneys as Pennsylvania "Rising Stars." Read more

Dennis Butler Elected to Executive Committee of Brehon Law Society // June 29, 2012
Dennis Butler, Attorney at Panitch Schwarze Belisario and Nadel LLP, was elected to the Executive Committee of the Brehon Law Society, a legal organization comprised of attorneys, judges and law students of Irish descent. Read more

Panitch Schwarze IP Attorney Dennis Butler to Speak at Capstone Engineering Conference // April 3, 2012
Dennis Butler, Attorney at Panitch Schwarze Belisario and Nadel LLP, will be the featured speaker at the upcoming Engineering Capstone Design Conference held at the Pennsylvania State University on April 21, 2012. The conference will take place at the University's Harrisburg campus. Read more

7 IP Attorneys with Panitch Schwarze Named Pennsylvania 'Super Lawyers' and 'Rising Stars' for 2012 // March 23, 2012
Panitch Schwarze Belisario and Nadel LLP is pleased to announce that Ronald L. Panitch, William W. Schwarze, Martin G. Belisario and Alan S. Nadel have been selected to the Pennsylvania Super Lawyers list 4 of the top attorneys in Pennsylvania for 2012. No more than 5 percent of the lawyers in the state are selected by Super Lawyers. Read more

Panitch Schwarze Hosts Leahy-Smith America Invents Act Live Seminar & Webinar // December 16, 2011
Panitch Schwarze attorneys Alan Nadel, Clark Jablon, John Simmons, and Dennis Butler hosted a live seminar and webcast entitled “Leahy-Smith America Invents Act” on November 30, 2011. The presentation discussed major changes found in the sweeping new law including the introduction of the first-tofile system, the post grant review proceedings, and the impact this will have on patent litigation. Read more

Leahy-Smith America Invents Act - Live Seminar & Webinar // November 30, 2011
Panitch Schwarze attorneys Alan Nadel, Clark Jablon, John Simmons, and Dennis Butler hosted a live seminar and webcast entitled "Leahy-Smith America Invents Act" on November 30, 2011. Read more

Honors & Awards

  • Named a  Pennsylvania "Rising Star," 2012 - 2013, by Thomson Reuters, publishers of Pennsylvania Super Lawyers
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