Senior Manager, Patent Information Scientist; Chemist

At Eisai, satisfying unmet medical needs and increasing the benefits healthcare provides to patients, their families, and caregivers is Eisai’s human health care (hhc) mission. We’re a growing pharmaceutical company that is breaking through in neurology and oncology, with a strong emphasis on research and development. Our history includes the development of many innovative medicines, notably the discovery of the world’s most widely-used treatment for Alzheimer’s disease.

As we continue to expand, we are seeking highly-motivated individuals who want to work in a fast-paced environment and make a difference. If this is your profile, we want to hear from you.

The Senior Manager, Patent Information Scientist (Chemist) is a key member of Eisai’s Intellectual Property team, providing strategic scientific, patent, and competitive intelligence support to advance the company’s research, development, business development, and intellectual property objectives. As the primary U.S.

-based chemistry information scientist, this role is responsible for designing and executing complex patent, scientific literature, and competitive intelligence searches and analyses that support patent preparation, patentability evaluations, freedom-to-operate assessments, due diligence activities, competitive intelligence initiatives, and patent litigation matters. The position collaborates closely with scientists, patent attorneys, and business stakeholders to identify relevant information and assess technology landscapes to support informed decision‑making.

The successful candidate will possess deep expertise in chemical structure, Markush, and reaction searching. The Senior Manager will independently develop and execute complex chemical patent, scientific, and competitive intelligence research to inform high‑value business and legal decisions. Working closely with IP attorneys, scientists, business professionals, and commercial stakeholders, this role will help shape intellectual property strategy and support the protection and commercialization of Eisai innovations.

In addition, the Senior Manager will contribute to the evaluation and implementation of emerging information resources to enhance organizational capabilities, improve efficiency, and expand the strategic value delivered by the Patent Information Scientist function.

• Independently conduct comprehensive patent, scientific literature, and drug pipeline searches to support intellectual property, research, and business decisions.
• Work with IP attorneys, scientists, and business colleagues to define search needs to communicate findings clearly.
• Conduct complex chemical structure, Markush, and reaction searches using appropriate patent and scientific databases.
• Perform patent status research, monitoring, and alerts for key products, competitors, and technology areas.
• Evaluate new search platforms, databases, analytics tools, and AI-enabled resources to improve quality, efficiency, and capabilities.
• Provide ad hoc assistance on matters such as running trademark searches, obtaining articles, facilitating access to information resources, and resolving technical issues.

• Ph.D. or M.S. in Chemistry is preferred. Candidates holding a B.S./B.A. in Chemistry with equivalent research experience, Qualified Patent Information Professional (QPIP) certification, or USPTO registration will also be considered.
• 6-10+ years of experience in chemical patent searching, including at least 5 years supporting pharmaceutical research, development, and intellectual property activities.
• Ability to review scientific and patent documents with strong comprehension of content to identify relevant documents.
• Demonstrated expertise conducting chemical structure, Markush,…