Paris Convention

The Paris Convention for the Protection of Industrial Property is the foundational international IP treaty: HISTORY: adopted in Paris in 1883; one of the oldest IP treaties; revised multiple times (most recently Stockholm 1967); 179 member states; administered by WIPO (World Intellectual Property Organization); SCOPE: covers patents; utility models; industrial designs; trademarks; service marks; trade names; indications of source/appellations of origin; repression of unfair competition; TWO FOUNDATIONAL PRINCIPLES: (1) NATIONAL TREATMENT (Article 2): nationals and residents of any member country must receive in other member countries the same protection afforded to that country's own nationals; no discrimination against foreigners; a US inventor filing in Germany gets the same treatment as a German inventor filing in Germany; (2) RIGHT OF PRIORITY (Article 4): the most important patent provision; an applicant who files in one member country has 12 months (for patents and utility models) to file in other member countries, claiming the priority of the original filing date; WHAT THE CONVENTION DOES NOT DO: the Paris Convention does NOT create a unified patent; each country still separately examines and grants its own patent; the Convention does NOT specify what is patentable; each country applies its own law; the Convention only provides procedural rights (priority and national treatment); INDEPENDENCE OF PATENTS (Article 4bis): patents granted in different countries for the same invention are independent; invalidation of the patent in one country does NOT automatically invalidate it in others; this independence also means: each country's laws apply to its own patent; prosecution history in one country generally does NOT affect prosecution in another (no international prosecution history estoppel); COMPULSORY LICENSES (Article 5A): member countries may grant compulsory licenses to prevent abuses from non-working of patents; forfeiture only if compulsory license insufficient.

Paris Convention priority is the critical mechanism enabling international patent strategy: PRIORITY PERIOD: 12 months for patents and utility models from the date of the first filing; 6 months for industrial designs and trademarks; the priority period is STRICT — missing the deadline by even one day results in loss of priority; WHAT PRIORITY PROVIDES: the foreign application claiming Paris Convention priority is treated as if it were filed on the same date as the original application; prior art that emerged BETWEEN the priority date and the foreign filing date cannot be used to reject the foreign application; third-party activities during the priority period (publications, sales, uses) do not destroy novelty of the foreign application; CLAIMING PRIORITY: the foreign application must: explicitly claim priority of the earlier application; state: the country, date, and application number of the priority application; be filed within the 12-month priority period; WHICH APPLICATION IS THE PRIORITY APPLICATION: the 'first filing' establishing priority can be: a regular national application; a provisional patent application (US); a PCT international application; a utility model application; RESTORATION OF PRIORITY RIGHTS: if the 12-month period is missed, some countries allow restoration of priority upon showing 'unintentional' or 'due care' failure; US allows unintentional petitions; EPO allows 'all due care' standard; not all countries offer restoration — absolute deadline in many; PRIORITY DOCUMENT: the applicant must provide a certified copy of the priority application to the foreign patent office; typically available from the filing office for a fee; e-Priority document exchange between patent offices streamlines this requirement; MULTIPLE PRIORITIES: a single application may claim priority from multiple earlier applications, up to 12 months before the latest priority date.

The PCT and Paris Convention work together as the core of international patent strategy: PCT BUILDS ON PARIS: the PCT was created within the framework of the Paris Convention; to use the PCT, applicants must be nationals or residents of a PCT contracting state (which is also a Paris Convention member); the PCT filing is a Paris Convention filing — it claims the priority of the earlier national application; PCT TIMELINE WITH PARIS CONVENTION: MONTH 0: US provisional application filed (or regular application); MONTH 12: PCT application filed; claims Paris Convention priority from Month 0; the PCT has the same effective date as the Month 0 filing; MONTHS 12-18: international search (ISR prepared by ISA); MONTH 18: PCT application published internationally; MONTH 22 (optional): enter Chapter II examination; MONTH 30-31: enter national phase in selected countries; total time from priority date to national phase entry: 30-31 months; WITHOUT PCT (PARIS CONVENTION DIRECT): MONTH 0: priority application; MONTH 12: must file in ALL desired foreign countries simultaneously (expensive; must decide early); NO ABILITY TO DELAY COUNTRY SELECTION: direct Paris Convention filing requires all country decisions by month 12; PCT ADVANTAGE OVER DIRECT: delays foreign filing decisions from month 12 to month 30 (extra 18 months); provides ISR for patentability assessment; single application fee covers initial phase; DISADVANTAGE OF PCT OVER DIRECT: adds PCT filing cost; national phase costs remain (not eliminated); for a small number of countries, direct Paris Convention may be cheaper; COMBINATION: nothing prevents combining; file PCT for major markets; file directly for specific countries not in PCT (some countries are Paris Convention but not PCT members — rare).

National treatment is the anti-discrimination principle that enables international patent filing: NATIONAL TREATMENT PRINCIPLE: Article 2 of the Paris Convention: each member country must give to nationals and residents of other member countries the same protection that it gives to its own nationals; example: a German inventor filing in Japan must receive the same treatment as a Japanese inventor filing in Japan; WHAT NATIONAL TREATMENT COVERS: access to patent examination on the same basis as domestic applicants; the same substantive patentability standards; the same procedural rights; same enforcement mechanisms and courts; same renewal fees (usually; some countries charge higher fees for foreigners but this is generally inconsistent with national treatment); NATIONAL TREATMENT DOES NOT MEAN: the same patent scope or term in each country (each country's law applies); one single worldwide patent; RECIPROCITY vs. NATIONAL TREATMENT: some countries might be tempted to refuse protection to nationals of countries that don't adequately protect their own citizens' IP; the Paris Convention rejects this reciprocity approach in favor of unconditional national treatment; PRACTICAL IMPACT: without the Paris Convention, foreign inventors might face legal discrimination, additional burdens, shorter terms, or reduced rights compared to local applicants; national treatment ensures equal access to the patent system; EXCEPTIONS: Paris Convention allows member countries to exclude certain subject matter from patentability (Article 4quater: not required to patent food, medicine, or chemical products); but this must apply equally to domestic and foreign applicants; FILING FEES: some countries charge higher official fees for international applications vs. domestic; under national treatment, fees should be equal; however, because fees for the PCT route include translation costs and other administrative fees, practical differences arise.

Missing or mismanaging Paris Convention priority is one of the most costly errors in patent practice: MISSING THE 12-MONTH DEADLINE: the most common and catastrophic error; no extension of time is available as of right in most countries; the applicant loses priority — prior art from the priority period can now be used against the foreign application; in countries with absolute novelty (most countries outside the US), any public disclosure made by the applicant between the original filing and the foreign filing date would be prior art; SOLUTIONS: calendar systems; multiple independent reminders; partner notification; CHOOSING THE WRONG PRIORITY APPLICATION: the priority application must be a qualifying first application; if the applicant filed a disclosure document or informal submission in one country, it may not be a valid priority application; always confirm the type of application being relied upon as priority; INADEQUATE DISCLOSURE IN PRIORITY APPLICATION: claims in foreign applications must be supported by the priority document; if the foreign application includes new matter (not disclosed in the priority application), that new matter gets the later filing date; 'partial priority' claims can be complex and must be carefully managed; MISSING NATIONAL ENTRY DEADLINES: even with PCT, the 30/31 month national phase deadline is firm; missing it loses the ability to use the PCT national phase route (still possible to file directly in some countries, but priority may be lost); TRANSLATION ERRORS: claims or descriptions translated for foreign filings may have errors that change scope; have technical translations reviewed by a patent attorney in the target country; NOT CLAIMING PRIORITY: a foreign application that fails to claim the priority application (omits the priority claim box) loses priority rights even if filed within the priority period; INDEPENDENT NATIONAL PATENTS AFTER GRANT: after grant, each national patent is independently maintained; failure to pay renewal fees in one country does not affect others.