Greg Sach
Founding Partner Valet Patent Services Ltd.
European & UK Patent Attorney | AI & Emerging Technologies Specialist | High-Stakes Advocacy & Litigation
Greg Sach is a leading European and UK Patent Attorney with a distinguished track record prosecuting, defending, and strategically managing some of the most complex and high-value patent portfolios in Europe. Known for his technical depth, strategic clarity, and exceptional advocacy skills, Greg has become one of Europe’s foremost authorities in the field of artificial intelligence, machine learning, and data-driven technologies.
Over the past decade, Greg has been responsible for filing and prosecuting one of the highest volumes of European and UK patent applications across diverse technologies, with a particular concentration in AI-based systems, computational models, autonomous platforms, software-engineered processes, and advanced data-science architectures. His depth of experience uniquely positions him as a trusted advisor to technology-driven companies seeking strong, defensible, and commercially meaningful patent protection in rapidly evolving sectors.
Greg’s practice extends beyond prosecution. He has extensive experience representing Fortune 500 corporations, global technology leaders, and multinational innovators in:
Opposition and appeal proceedings before the European Patent Office (EPO)
High-profile and high-stakes patent litigation across Europe
Complex freedom-to-operate evaluations and strategic IP positioning
Portfolio restructuring and large-scale global patent filing programmes
He is widely recognized for his ability to translate cutting-edge inventions—particularly in AI and data-science—into clear, technically rigorous, and legally robust patent filings that withstand scrutiny in both examination and contentious proceedings. Greg’s litigation experience further strengthens his drafting and prosecution strategy, giving clients a proactive advantage against future challenges.
Clients consistently value Greg for his:
Ability to work seamlessly with R&D executives, engineering teams, and technical founders
Strategic handling of large global patent portfolios
Pragmatic, business-driven approach to IP risk and opportunity
Proven record of success in contentious proceedings at the EPO
Insight into emerging regulatory and legal developments surrounding AI innovation
As Managing Partner of Valet IP, Greg leads the firm’s growing high-technology and AI practice, applying his deep expertise to support innovators at every stage—from early-stage inventors to some of the world’s most advanced and influential companies.
Dr. Thomas Pott
Managing Partner Valet PatentanawaltsGmbH
Dr. Thomas Pott, LL.M. – Managing Partner, Valet Patentanwaltsgesellschaft GmbH
German, Belgian & European Patent Attorney | Chemistry, Materials & Industrial Technologies | Strategic Portfolio Advisor
Dr. Thomas Pott is a highly accomplished German, Belgian and European Patent Attorney with more than twenty years of experience representing leading global companies in complex patent matters before the European Patent Office (EPO), the German Patent and Trade Mark Office (DPMA), the Belgian Intellectual Property Office (IPObel) and the Luxembourg Intellectual Property Office (OPI) as well as the Unified Patent Court (UPC) and the German Federal Patent Court (BPatG). As Managing Partner of Valet Patentanwaltsgesellschaft GmbH, Dr. Pott heads the firm’s continental European practice and advises clients across a broad spectrum of technologies, with particular strength in chemistry, industrial processes, materials science, polymers, coatings, sustainable materials, and advanced manufacturing technologies.
Dr. Pott has developed a reputation as a precise, strategic, and commercially grounded practitioner. He is widely recognized for his ability to translate technically sophisticated research – often involving chemical formulations, specialty resins, environmental technologies, and new materials – into clear, persuasive, and defensible patent protection. His strategic guidance supports the full innovation lifecycle, including drafting, prosecution, portfolio development, infringement analysis, and EPO oppositions and appeals.
Over his career, Dr. Pott has represented and advised Fortune 500 corporations, global chemical manufacturers, and high-growth technology companies, including long-term engagements with major R&D organizations. Known for his steady judgment and deep understanding of both science and law, Dr. Pott has successfully managed hundreds of European patent applications and has handled numerous multi-jurisdictional matters involving complex scientific evidence and technical argumentation. His strategic approach ensures that client portfolios are not only technically sound, but also aligned with broader commercial objectives and long-term market positioning.
Clients value Dr. Pott for his:
Exceptional technical mastery in chemical, materials & industrial technologies
Clear, structured communication with both scientists and executives
Proven ability to secure strong, enduring patent protection in crowded technology fields
Strategic handling of large and diverse patent portfolios
Reliability, responsiveness, and long-standing commitment to client success
As Managing Partner of Valet GmbH, Dr. Pott leads the firm’s continental European operations and works closely with the broader Valet IP group to deliver high-quality, integrated patent services across Europe and the United Kingdom.
Avir Patel Partner Valet Patent Services Ltd.
Avir Patel is a European and UK Patent Attorney with extensive experience advising clients across a broad range of high-technology and mechanical fields. His practice has particular strengths in computing, artificial intelligence and software, digital health technologies, medical devices, and conventional and renewable energy technologies.
Throughout his career, Avir has worked with some of the world’s leading innovative companies, as well as many prominent intellectual property law firms in the United States, Japan, Korea and China. This international experience enables him to understand the commercial priorities of clients operating across multiple jurisdictions and to provide clear, pragmatic advice tailored to their wider global patent strategies.
Avir handles the prosecution of patent applications before major patent offices around the world. He is experienced in managing technically complex cases and international patent portfolios, working closely with inventors, in-house counsel and overseas attorneys to secure commercially meaningful protection for new technologies.
Avir also has particular expertise in opposition and appeal proceedings before the European Patent Office (EPO), having handled a substantial number of contentious cases throughout his career. He is a highly experienced advocate in oral proceedings before the EPO’s Opposition Divisions and Boards of Appeal, including in high-value matters involving parallel patent litigation.
Clients value Avir for his:
Broad technical expertise across high-technology and mechanical sectors
Clear understanding of complex computing, AI, software and medical technologies
Strategic and commercially focused approach to international patent prosecution
Extensive experience in EPO opposition and appeal proceedings
Confident advocacy in complex, high-value oral proceedings
Avir combines technical understanding, strategic judgment and practical advocacy to help clients develop robust patent portfolios, navigate contentious proceedings and protect commercially important innovations across Europe and internationally.
