Patent Prosecution Highway (PPH)
Favorable examination results in one patent office may help you request faster examination in another. Carson Patents reviews whether the Patent Prosecution Highway fits your application family and filing strategy.
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What Is the Patent Prosecution Highway?
The Patent Prosecution Highway (PPH) is a route to request expedited examination of corresponding claims in participating patent offices using favorable examination work from another participating office. It does not create an international patent or transfer a patent grant from one country to another.
How the PPH Request Works
Eligibility can arise when an office finds at least one claim allowable; you do not necessarily need to wait for a patent to issue. The corresponding application, claims, work product, and request timing must satisfy the receiving office’s rules.
We review the application family and examination history, assess claim correspondence, and prepare the request and supporting materials where the program is suitable. The receiving examiner still decides patentability under the applicable law.
Potential Benefits
PPH can support earlier examination and make useful prior examination work available to the next office. It may improve efficiency, but neither a particular turnaround time nor lower total prosecution costs is guaranteed.
Global Patent Prosecution Highway
Global PPH provides a common framework among participating offices. Participation and accepted work products should be checked for the specific application and receiving office rather than assumed from a fixed country list.
IP5 Patent Prosecution Highway
The IP5 PPH framework provides another participating-office route. At the USPTO, the Global and IP5 frameworks use substantially equivalent requirements. Check the current USPTO PPH guidance for offices, forms, and program updates.
4 Reasons to Evaluate PPH
- Earlier examination: Request accelerated handling where eligibility and timing permit.
- Use existing work: Bring favorable examination results to a corresponding application.
- Coordinate claims: Review claim strategy across the application family.
- Support business planning: Consider whether faster examination fits an investment, licensing, or launch decision.
The USPTO does not charge a PPH request fee. Professional preparation, translations, and other application costs may still apply. Its current docketing policy targets first-action pendency at approximately half that of non-PPH applications in the relevant technology, rather than promising a fixed examination date.
3 Limitations to Consider
- Eligibility: The office, application, work product, claim correspondence, and timing must qualify.
- Claim strategy: Aligning claims with the favorable work product may not fit every business objective.
- Independent examination: The receiving office may still reject claims, and preparation costs must be weighed against the expected benefit.
Share your applications and recent office communications with us so we can assess whether a PPH request fits your strategy.
Discuss Your Next Step
Tell us about your invention, target markets, and timing so we can discuss the work that fits your goals.