HKA is delighted that five of our experts have been recognized as expert witnesses in the 2025 IAM Patent 1000.  Now in its 12th edition, IAM undertook an exhaustive qualitative research project to identify outstanding firms and individuals across multiple jurisdictions.  

 HKA listings include industry-leading, globally recognized Intellectual Property Expert Witnesses:

Thomas Britven, Partner, has more than 30 years of experience as an economic consultant and trusted adviser. Mr Britven has served some of the world’s largest clients in hundreds of financial damages claims and business consulting matters. His extensive expertise includes complex financial damages analysis in intellectual property, breach of contract, business interruption, unfair competition, forensic accounting, and business valuation disputes.

 IAM says: “Thomas Britven offers clients in-depth, business-minded financial aid for patent infringement and damages analyses. He is renowned for applying his skill to complex licensing matters.”

John L Hansen, Partner, has more than 35 years of experience consulting to companies on economic, accounting and damages matters in a wide variety of industries. Mr. Hansen has analyzed and addressed claims for lost profits, price erosion, reasonable royalties, unjust enrichment, increased costs and diminution of asset and business value in a variety of circumstances and industries related to IP infringement, breach of contract, class action, antitrust, unfair competition and other allegations.

IAM says: “Expert testifier John Hansen assists corporations and patrons with complex IP disputes by translating the potential risks and financial impacts associated with patent infringement and misappropriation cases.”

Ryan LaMotta, Partner, is an economic and damages expert with over 15 years of experience. He has been retained as the named expert on more than 75 matters covering a wide range of industries and causes of action, including international trade violations, patent infringement, theft of trade secrets, breach of contract, copyright and trademark infringement, valuation disputes, and business interruption.

IAM says:“Ryan LaMotta blends his expertise in finance and law to create a powerful synergy. With a wealth of experience in high-profile patent infringement cases, he has successfully led teams and given compelling expert testimony to captivate and convince any courtroom.”

Michael J Lasinski, Partner, has over 30 years of experience consulting on the financial aspects of intellectual property and commercial disputes. He has been appointed as an expert on hundreds of engagements and given testimony throughout the world on IP valuation, tax, bankruptcy, standard essential patent licensing and commercial damages. 

IAM says: “Michael Lasinski excels in evaluating intellectual property and businesses for a variety of needs. Over his notable career, he has conducted hundreds of IP asset valuations. As a highly regarded speaker, Michael shares his knowledge on valuation, licensing, and tax issues at events across the US and around the world.

Paul K Meyer, Partner, is the global head of Intellectual Property at HKA. A recognized leading practitioner in the valuation of intellectual property, including significant experience in FRAND licensing, with appointments in US Federal Court, ITC and the High Court of England and Wales involving technologies such as 2G/3G/4G/5G, IEEE 802.11, H.264, H.265, Bluetooth and the JEDEC Solid State Technology Association. Additionally, Mr. Meyer regularly advises Fortune 100 companies in the licensing and valuing of patents and other intellectual property.

IAM says: “Paul Meyer, who leads the global IP group at HKA, is a highly regarded consultant. His extensive experience makes him a credible expert witness, consistently delivering outstanding damages testimony for his clients in high-stakes court cases.”

IAM also recognized the contributions of HKA’s wider Intellectual Property practice, including the team working with Tom, John, Ryan, Michael, and Paul to deliver exceptional services to its clients.

 IAM says: “A leading consultancy… The outfit is home to highly recognised experts who excel in communicating complex matters to judges and juries.”

“We are thrilled to see the recognition our IP experts have received in this year’s IAM Patent 1000. Sincere gratitude to our clients for their recommendations of our expert team, and to all the work our talented IP experts and their teams consistently deliver – it is a fantastic testament to our team’s extensive expertise in the Intellectual Property and Patent Damages field and the exceptional service they provide to our clients.”

Renny Borhan, Partner & CEO

About HKA’s IP Practice

HKA’s intellectual property experts offer specialised dispute services across the spectrum of IP practice. In addition to providing licensing, valuation and damages consulting on matters involving patents, trademarks, copyrights, trade secrets, trade dress, rights of publicity and false advertising, HKA’s services range from valuing intangible assets, quantifying damages, including lost profits and reasonable royalties, preparing accounts of the infringer’s profits; assisting with technology transfers and providing expert witness testimony. 

 The firm’s consultants have provided expert testimony on damages at trial in Federal Courts, State Courts, in the International Trade Commission and in global venues including the UK High Court, in some of the largest and most complex intellectual property infringement and misappropriation disputes in recent decades.

The experience of HKA’s experts includes numerous high technology, communications, software, semiconductor, pharmaceutical and consumer goods matters, including technology related to semiconductor manufacturing equipment, DRAM, RISC microprocessors, IGBTs, LEDs, artificial intelligence, encryption, ASICs, SLICs, power controllers, GPS devices, VCRs, audio processing chips and cards, routers and switches, Bluetooth technology, telecommunications, GPUs, gaming, cardiovascular stents, athletic footwear and toys, as examples.

 Find out more about the firm’s intellectual property services and its expert witnesses.  

Media contact

Name	Josephine Guckian
Title	Chief Marketing and Communications Officer
Number	+44 20 7618 1200
Email	JosephineGuckian@hka.com