Partner
Mark is a registered patent attorney with extensive experience handling procurement matters before the U.S. Patent and Trademark Office (USPTO), including patent application drafting and prosecution, conducting examiner interviews, filing appeals to and presenting oral arguments before the Patent Trial and Appeal Board (PTAB) of the USPTO, interference proceedings, reissue proceedings, and reexamination proceedings. Mark also has significant experience in inter partes review (IPR) and post grant review (PGR) proceedings.
Mark represents a leading specialty chemical manufacturer in matters, including several IPR and PGR proceedings, due diligence, patent portfolio development, and counseling. He also represents one of the world's leading manufacturers of construction equipment and diesel engines in prosecution and counseling matters that include several IPRs. He manages the entirety of intellectual property work for several clean energy companies, including managing each company's worldwide patent portfolio, which are directed to photovoltaic devices, fuel cells, and hydrogen-based fuels.
Mark's technical expertise is diverse and includes working with technologies involving pharmaceuticals, agricultural chemicals, polymers, industrial coatings and films, and clean energy and renewable resources such as photovoltaics, fuel cells, renewable feedstocks, hydrogen-based fuel, and bioplastics. He served as a primary examiner at the USPTO, where he handled polymer-based technologies.
Mark is a frequent lecturer at legal and corporate seminars on a variety of intellectual property topics, including patent procurement and procedures, such as the provisions of the America Invents Act (AIA). Recent topics include effective use of AIA post-grant proceedings; global patent prosecution and enforcement; strategic patent portfolio management and monetization, and changes to U.S. patent laws.
The Legal 500 U.S. has recognized Mark for his work in patent prosecution, reexaminations, and post-grant proceedings. He was named a Global Leader and as a leading patent prosecutor in the D.C. area by Intellectual Asset Management. In Acritas Stars, clients have touted his "advice in strategic planning and analysis of complex situations" as well as "his responsiveness... [and] ability to focus in on the issues that the business is interested in."
Mark has held several firm leadership roles over the years. He served as managing partner, as firm chair, as leader of the chemical and metallurgical practice group, and as the firm's hiring partner in the Washington, D.C. office. He also served a three-year term on the management committee.
Event
Developing New Revenue Streams During COVID Through Intellectual Property Developing New Revenue Streams During COVID Through Intellectual Property
April 21, 2021
Webinar
Event
Introduction to a Legal Career and Intellectual Property Law Introduction to a Legal Career and Intellectual Property Law
September 15, 2020
Webinar
Seminar
Dar Al Uloom University IP Workshop Dar Al Uloom University IP Workshop
February 10, 2020
Riyadh
Webinar
USPTO Examiner Interview Strategies: Preparing for and Conducting Interviews to Advance Patent Prosecution USPTO Examiner Interview Strategies: Preparing for and Conducting Interviews to Advance Patent Prosecution
June 20, 2019
Webinar
Event
Finnegan Tokyo Office 30th Anniversary Seminar & Reception Finnegan Tokyo Office 30th Anniversary Seminar & Reception
October 18, 2018
Tokyo
"Sweet is an expert when it comes to portfolio analysis, due diligence and opinion work."
Intellectual Asset Management Patent 1000
“Sweet is in hot demand for high-level strategic oversight. He also makes a vital contribution to the side’s booming post-grant practice.
Intellectual Asset Management Patent 1000
“Among the best strategic counsellors is managing partner Mark Sweet…”
Intellectual Asset Management Patent 1000
“…a cleantech authority, Sweet manages [a] worldwide organic photovoltaic device patent portfolio, making excellent use of his carefully cultivated global network to get the best for the company.”
Intellectual Asset Management Patent 1000
"Sweet is an expert when it comes to portfolio analysis, due diligence and opinion work."
Intellectual Asset Management Patent 1000
“Sweet is in hot demand for high-level strategic oversight. He also makes a vital contribution to the side’s booming post-grant practice.
Intellectual Asset Management Patent 1000
“Among the best strategic counsellors is managing partner Mark Sweet…”
Intellectual Asset Management Patent 1000
“…a cleantech authority, Sweet manages [a] worldwide organic photovoltaic device patent portfolio, making excellent use of his carefully cultivated global network to get the best for the company.”
Intellectual Asset Management Patent 1000
Award/Ranking
Seven Finnegan Partners Named IAM Global Leaders for 2024 Seven Finnegan Partners Named IAM Global Leaders for 2024
November 14, 2023
IAMPress Release
Finnegan Receives Top Rankings from Intellectual Asset Management; 46 Attorneys Ranked Finnegan Receives Top Rankings from Intellectual Asset Management; 46 Attorneys Ranked
June 30, 2023
Intellectual Asset ManagementPress Release
29 Finnegan Attorneys Ranked by Best Lawyers 29 Finnegan Attorneys Ranked by Best Lawyers
August 18, 2022
U.S. News—Best LawyersPress Release
45 Finnegan Attorneys Recommended by Intellectual Asset Management; Firm Continues to Be Top Ranked 45 Finnegan Attorneys Recommended by Intellectual Asset Management; Firm Continues to Be Top Ranked
July 8, 2022
Intellectual Asset ManagementPress Release
Twenty Finnegan Attorneys Recognized by Best Lawyers Twenty Finnegan Attorneys Recognized by Best Lawyers
August 20, 2021
U.S. News—Best LawyersPress Release
40 Finnegan Attorneys Ranked in IAM Patent 1000 40 Finnegan Attorneys Ranked in IAM Patent 1000
July 8, 2021
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