Armstrong Teasdale LLP

IAM Research

The Patent 1000 focuses exclusively on patent practice and has firmly established itself as the definitive 'go-to' resource for those seeking world-class legal patent expertise.

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Armstrong Teasdale has filed over 9,000 patent applications in the past five years alone, many of which required original drafting; the firm’s 55 attorneys and patent agents have abundant prosecution experience and are leaned on heavily by innovative companies, individual inventors, academic institutions and others. Among its prestigious clientele is the National Institutes of Health, which awarded it a 10-year contract in April 2020 to provide biotechnology services. Securing this, senior partner Christopher Goff inspires confidence as a wise counsellor, opinion giver and post-grant proceedings ace. A medical device, chemical and biochemical expert, he also acts for BASF in connection with global prosecution and portfolio management as part of a team captained by Erin Florek, an “incredibly responsive practitioner who provides a high-quality service for a reasonable cost”. Florek makes her debut in the IAM Patent 1000 for 2022 alongside James Heinen – another member of the BASF team – who was elevated to IP group leader in 2021. Prosecution-focused Heinen is beloved as a “down-to-earth, super personable, highly attentive professional, who is just brilliant at what he does”. Strong leadership is provided by several others, including Daniel Fitzgerald, who chairs the electrical and computer science practice; he prosecutes with precision and is highly adept as a transactional lawyer. Possessing a similar skill set, Michael Munsell procures valuable patents capitalising on his IP monetisation know-how. Armstrong Teasdale also has significant patent trial and post-grant experience and an excellent track record thanks to the efforts of lawyers such as litigation head Richard Brophy. A quick study on diverse technologies and an excellent cross-examiner and tactician, he makes light work of complex cases.

Firm Profile

For more than a century, Armstrong Teasdale has forged long-term relationships with clients large and small around the globe. Since our founding in 1901, we have grown to be one of the 200 largest US law firms, with offices throughout the US, the UK and Europe. Our lawyers work together to guide clients through virtually every challenge, from day-to-day operational decisions to some of the most complex legal matters.

Our robust team of more than 120 IP lawyers and staff knows that when it comes to patent law, coming up with a big idea is just the beginning. To protect the rights of innovators and inventors, Armstrong Teasdale lawyers provide patent services to some of the world’s largest companies with innovation at the heart of their business, managing portfolios containing thousands of patents.

Our patent team includes over 50 lawyers and patent agents registered to practise before the USPTO. The team has filed 9,276 patent applications in the last five years, with 3,684 of those originally drafted and filed. We also serve individual inventors as well as university tech-transfer programmes, research facilities and technology incubators.

We represent clients around the globe from offices across the United States. Our team includes lawyers, patent engineers and patent agents with advanced degrees, including PhDs, and practical experience that enable them to develop optimal protection strategies for our clients’ inventions and ideas, both in the United States and internationally. Many of our patent professionals have degrees and experience in fields encompassing biotechnology, electrical engineering, computer science and the mechanical arts, giving them the technical expertise to support clients working in a broad range of industries, including:

  • Aerospace design
  • Biological therapies
  • Biological and genetic markers
  • Business methods
  • Computer science
  • Confectionery products
  • Consumer appliances
  • Data storage systems
  • Database management
  • Food science
  • Gaming systems and technology
  • Genetic therapies
  • Genetically modified organisms (GMOs)
  • Genetically modified (GM) seeds
  • Herbicides
  • Hygiene products
  • Immunotherapy
  • Immuno-oncology
  • Medical devices and diagnostics
  • Microfluidic devices
  • Mobile technologies
  • Nanomaterials
  • Network technologies
  • Organic chemistry
  • Online advertising technologies
  • Pesticides
  • Pharmaceutical compositions
  • Polymer/material science
  • Power generation systems
  • Prebiotics/probiotics
  • Product packaging
  • Rail car technology
  • Security systems
  • Small molecules
  • Space and satellite technology
  • Transportation systems
  • Vaccines
  • Vehicle technology
  • Wind energy technology

Our global practice is also a leader locally. For more than a decade, Armstrong Teasdale’s patent practice has been ranked by the St Louis Business Journal as the largest in the metropolitan area based on number of patent lawyers.

Our services include:

  • preparing and prosecuting patent applications;
  • conducting patentability, non-infringement, clearance and validity studies;
  • performing due diligence studies related to acquisitions; and
  • assisting clients in the development, management and monetisation of patent portfolios.

Members of our team are also experienced trial lawyers with significant IP litigation and post-grant proceedings experience. We serve both patent owners and petitioners before the PTAB at the USPTO in post-grant proceedings, including post-grant review, inter partes review and derivation proceedings.

More broadly, our IP practice group guides its clients through all aspects of the acquisition, licensing, application, protection and enforcement of their IP rights, from patents to trademarks, copyright to licensing, and technology transfers to opinion work and due diligence. This includes supporting clients such as inventors, manufacturers, universities, private equity firms and others with a focus on driving technological advances.

We frequently manage not only a team of lawyers working together in our firm, but also coordinate carefully with inventors and other client representatives. As one of our core values, we believe teamwork is key to achieving optimal results and as such, our lawyers work seamlessly across Armstrong Teasdale’s global network, which includes lawyers with experience in other areas such as technology licensing, international law and M&A. This holistic approach enables our lawyers to provide guidance on the broader implications of our clients’ IP matters.

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