Zoetis Inc.

Our technology, brand, and other intellectual property are important elements of our business. We rely on patent, trademark, copyright, design and trade secret laws, as well as regulatory exclusivity periods and non-disclosure agreements to protect our intellectual property rights. Our policy is to vigorously protect, enforce and defend our rights to our intellectual property, as appropriate.

Our product portfolio enjoys the protection of more than 5,500 granted patents and 1,600 pending patent applications, filed in over 50 countries, with a focus on our major markets, including Australia, Brazil, Canada, China, Europe, Japan and the U.S., as well as other countries with strong patent systems. Many of the patents and patent applications in our portfolio are the result of our in-house research and development, while other patents and patent applications in our portfolio were wholly or partially developed by third parties and were acquired by or are licensed to Zoetis.

Patents for individual products expire at different times based on the date of the patent filing (or sometimes the date of patent grant) and the legal term of patents in the countries where such patents are obtained. Below is a summary of our recent and upcoming key patent expirations.

•Patents relating to the active ingredient (tulathromycin) and formulation of Draxxin have expired. Generic or other competing tulathromycin products are now marketed in most major markets as well as in many smaller markets. Additional marketing authorizations for generic tulathromycin products may be granted in various markets in the future. Sales of Draxxin have been negatively affected by generic competition in the markets where the patents have expired.

•All patents relating to the active ingredient of Excede/Naxcel (ceftiofur crystalline free acid) have expired. The patents covering the commercial formulation of Excede in Japan and Brazil extend to September 2026 and August 2027, respectively, but the corresponding patents in the U.S., Europe, Canada and Australia have expired. Generic versions of Excede have entered the market in Brazil, Mexico and Russia.

•The patent for the active ingredient of Cerenia has expired in all countries and the remaining formulation patents relevant to the injectable product line expire between 2025 and 2028. Generic versions of Cerenia injectable have been registered and marketed in Europe, Canada and Australia and one generic version of Cerenia injectable has been approved in the U.S.

Zoetis typically enforces its patents vigorously as appropriate globally, including by filing infringement claims against other parties and by defending claims it receives from third parties.

Additionally, many of our vaccine products are based on proprietary master seeds and proprietary or patented adjuvant formulations. We actively seek to protect our proprietary information, including our trade secrets and proprietary know-how, by seeking to require our employees, consultants, advisors and partners to enter into confidentiality agreements and other arrangements upon the commencement of their employment or engagement.

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We seek to file and maintain trademarks around the world based on commercial activities in most regions where we have, or desire to have, a business presence for a particular product or service. We currently maintain more than 10,000 trademark applications and registrations in our market countries, identifying products and services dedicated to the care of companion animals and livestock.