There is a basic tension at the heart of the US patent system that rarely receives sustained attention: patent grants an exclusive right, but one that can be challenged at almost any point during its life, and in some cases even after expiry. Title never truly quiets. For a right intended to function as property, that is a structural weakness.
In a recent FICPI Focus 45 discussion, Gene Quinn, Founder and CEO of IP Watchdog, put the point bluntly: if ownership can never be treated as final, investment will always be conditional. A patent system that cannot offer meaningful certainty undermines the very behaviour it is meant to encourage.
By meaningful certainty, Gene does not mean immunity from challenge. Rather, he is referring to a degree of legal finality sufficient to allow investors, licensees and patent owners to make commercial decisions on the assumption that a patent's validity will not be repeatedly re-litigated except in exceptional circumstances.
The absence of that finality creates a persistent valuation problem. Investors must decide how much weight to place on a patent asset when validity may be revisited years after grant, even where the patent has survived examination, supported commercial activity and formed the basis of licensing or investment decisions.
Research, manufacturing, licensing and commercialisation decisions often depend on confidence that the underlying patent rights will remain enforceable for a meaningful period.
The problem is structural, not tactical
Since the introduction of inter partes review under the America Invents Act, post grant challenges before the PTAB have become a routine feature of patent disputes. Access to the system is broad and, notwithstanding statutory limits on particular challengers, validity challenges may arise years after a patent has been granted, with multiple petitions from different parties on similar grounds remaining possible.
The result is continuing uncertainty. A patent can survive examination, licensing, litigation, and years of commercial reliance, yet still face fresh validity challenges from new actors. For those making decisions about licensing, investment, or product development, that uncertainty has a real cost. It affects valuation, deal structure, and appetite for risk.
Gene frames this as a failure of property rights. The analogy with real property is obvious and instructive. No one invests confidently in an asset whose ownership remains indefinitely contestable. From a commercial perspective, patents are no different. The inability to reach any point of finality has materially weakened the role patents play as reliable commercial assets.
Should a patent ever reach a point of meaningful finality, or is perpetual vulnerability to challenge an unavoidable feature of the modern patent system?
A limited window, not endless process
Gene’s proposed reform is simple in concept. A post grant challenge would trigger a defined public window, he suggests 90 to 120 days, during which any party with a legitimate interest could join the proceeding. Those who knew, or reasonably should have known, that the patent was relevant to their activities but chose not to participate would thereafter lose the right to challenge it.
The design depends on a meaningful standard of constructive knowledge, and Gene recognises that there must be a narrow exception where a party could not reasonably have anticipated relevance. But that exception is just that. It is not a mechanism for serial challenges once the commercial stakes become clearer.
The objective is not to remove scrutiny, but to concentrate it. Challenge early, challenge fully, and then allow title to settle.
The trade mark comparison is instructive
US trade mark law already reflects this logic. After five years of continuous use and registration, a mark becomes largely incontestable. Certain grounds remain available, but the field of attack narrows sharply. In practical terms, title quiets.
Patents, by contrast, never reach an equivalent stage. A 20 year right can be as exposed in its final years as on the day it issues. Indeed, commercial success often increases vulnerability rather than reducing it. That incentive structure is difficult to reconcile with any coherent theory of property.
What this means in practice
For IP attorneys, the current system encourages a defensive posture. Patents are drafted and prosecuted with the expectation that validity may be tested repeatedly through post-grant proceedings as well as litigation.
Clients are advised accordingly. That conservatism carries cost: broader disclosure, more extensive prosecution records, additional validity analysis, and licensing negotiations conducted against a background of unresolved risk.
A genuine quiet title mechanism would not eliminate post grant review. It would rationalise it. Uncertainty would be front loaded and finite, rather than persistent and open ended. That is not a radical idea. It is how functioning property systems operate.
Whether the US patent system is prepared to move in that direction remains an open question. But the issue itself is no longer peripheral. For those concerned with the long-term effectiveness of patents as commercial assets, the question goes to the heart of what the patent system is intended to deliver: incentives for innovation supported by rights that are sufficiently reliable to be valued, licensed and enforced.
FICPI’s view
For practitioners, innovators, and brand owners, the key challenge is not simply obtaining IP rights but ensuring those rights support broader business goals.
The FICPI community is built on trusted, global relationships. It uniquely combines education and advocacy on topics around patents and trade marks, with a focus on developing the professional excellence of its individual member who are independent IP attorneys from across the world. The FICPI community is driven by a strong shared interest among like-minded people to promote common solutions and advocacy for private practice.
Next steps
- This article is drawn from FICPI Focus 45, featuring Gene Quinn in conversation with FICPI Focus 45 webinar host Louis Pierre Gravelle. FICPI members may log in to the FICPI website to view the recording of this episode from 6 May 2026 at: https://ficpi.org/on-demand.
- Audio-only versions of the episodes are available to any interested parties across major podcast platforms – search for ‘FICPI Focus 45’.
FICPI webinars are open to any interested party. Find out what’s upcoming at: https://ficpi.org/eventstraining/upcoming-webinars
This article was generated by AI using careful prompts from our Communications Committee, review from our IP attorney Editorial Board, and editing from our expert editor.