Two main routes abroad
One route is filing directly in each country within the Paris Convention priority period, claiming the date of your first application. The other is a Patent Cooperation Treaty application, which can be filed within that same period and postpones country-by-country decisions while a search report and an opinion are produced. Neither route creates a single international patent, since each country or regional office examines and grants on its own terms. Direct filing tends to suit a short, settled list of countries, while the treaty route buys time when markets or funding are uncertain. Regional systems such as the European Patent Office can cover several countries through one examination.
Coming into the United States from abroad
Companies based outside the United States often start with a home-country filing and then enter the U.S. through the treaty's national stage or a direct filing claiming priority. Translations need to be accurate, because errors can be hard to fix later, and claims written for another system may need adjusting for U.S. practice. Corporate applicants generally have to be represented before the USPTO by a registered practitioner. The U.S. application should also stay consistent with the filings made elsewhere, since differences in claims and disclosures can be raised later. Some countries also restrict filing abroad first for inventions made there, so the home-country rules deserve a look before the U.S. filing is planned.
Planning the filing calendar
We start with your earliest filing date, any public disclosures, and the countries where the product will be made, sold, or likely copied. Bring earlier filings, search reports, and any office actions received elsewhere, which often inform U.S. strategy. Design protection follows its own international path, and its priority period is shorter than the one for inventions, so it should be planned separately. We discuss the budget across the stages where costs arrive, and which deadlines are fixed and which can be adjusted.
