GuestPost: The USPTO’s Climate Change Mitigation Pilot: End of a green fast-track and what it means

Patent law is highly subject to the winds of political change. Katfriend Dr Barasha Borthakur, lecturer in IP law at University of Southampton, explores for IPKat how developments in climate policy are impacting the US patent system: 

"In April 2025, the United States Patent and Trademark Office (USPTO) quietly brought an early end to its Climate Change Mitigation Pilot Programme (CCMPP), an initiative that once gave climate-friendly inventions a literal “green light” through the patent queue. Introduced with the aim of accelerating innovation that could mitigate the effects of climate change, its closure signals a shift in both administrative priorities and political tone. For inventors in the burgeoning field of clean technology, the loss of this fast-track feels less like an administrative footnote and more like a policy retreat.

Perhaps it is time for this Katfriend to ask – has the system run out of steam on green innovation?

A Patent Fast-Track for Climate Innovation

Launched in 2022, the CCMPP was a small but symbolically powerful gesture. It allowed inventors working on technologies that reduced greenhouse gas emissions to have their patent applications examined more quickly and crucially, without the usual fees or procedural hurdles attached to accelerated examination.

The programme’s stated goal was to “positively impact the climate” by supporting inventions that reduced, removed, or monitored emissions which echoed the broader climate ambitions of the then-Biden administration under Executive Order 14008. Its initial design was modest, covering inventions that directly mitigated climate change (think carbon capture, renewable energy, or low-emission transport technologies).

Barasha likes painting and here
is a painting of her fiancé’s cat Rufus

At first, uptake was slow with 243 petitions in its first year. But once the scope broadened in mid-2023 to include technologies that could “reduce, remove, prevent, and/or monitor” emissions, participation began to rise steadily. By January 2025, the USPTO had received 1,399 petitions and granted 898 special statuses, signalling growing recognition of its value.

And it did have value. A patent under CCMPP could expect a first Office Action within 2-3 months, with some reaching allowance in under 7 months which by comparison, ordinary examination pendency often averages around 16 months to a first action and well over 480 days (around 16 months) to final disposition. For climate tech startups competing in fast-moving markets, those extra months could spell the difference between securing funding and missing the wave.

The U.S. was hardly alone in adopting such an initiative. The UK’s Green Channel, active since 2009, continues to expedite environmentally beneficial inventions. Similar programmes run in Australia, Japan, South Korea, Israel, Canada, and even Brazil and China. In principle, all were cut from the same cloth with the belief that the patent system should not only reward invention but accelerate innovation where public good is at stake.

The Programme’s Early Termination: Suspension and Rationale

So why shutter a programme designed to speed up solutions to an existential crisis?

According to the USPTO, the official rationale was resource management. With nearly 700,000 pending applications, the Office argued that maintaining a special fast lane diverted examiner time and administrative effort that could be better spent reducing the backlog and pendency of all technologies. The message: efficiency and equity for all technologies trump preferential treatment for one category, however virtuous its purpose.

Yet, behind this technocratic explanation lay a clear policy shift. The decision followed Executive Order 14148 which was pointedly titled “Initial Rescissions of Harmful Executive Orders and Actions” and sought to roll back several of the prior administration’s climate-related initiatives. No explicit link was made, but the timing spoke for itself.

The end of the programme has not gone unnoticed. While the Sabin Center for Climate Change Law at Columbia University marked its closure with quiet resignation, the patent bar has been less restrained. Commentators lamented the loss of what one practitioner called a “cost-effective and streamlined” pathway for innovators who could least afford delay. Others viewed the decision as a symbolic retreat – an implicit signal that climate-related innovation no longer enjoys special encouragement in U.S. patent policy.

Meanwhile, other jurisdictions continue to press ahead. Canada’s Green Patent Program remains free and open, and the UK’s Green Channel continues to receive applications without fee. Against this international backdrop, the U.S. decision appears somewhat regressive – a step back just when global momentum demands otherwise.

Implications for Green Tech Patent Applicants

Practically, the implications are immediate. Climate innovators no longer have access to a no-cost fast lane. Patent applications now return to the standard queue where the first examination report typically arrives after 16 months, and total pendency often exceeds that.

For start-ups in the clean tech sector where rapid patent protection can be critical for investment and competitiveness, this loss is particularly acute. Their remaining options are now limited to two main routes:

i. Pay for “Track One” prioritised examination.

This pathway remains open to all applicants but comes with a fee. Track One promises a final disposition within 12 months, but for small entities or university labs, those extra thousands of dollars can be prohibitive.

ii. Petition to make special under environmental grounds.

U.S. patent rules (37 C.F.R. §1.102) allow examiners to advance applications that materially enhance environmental quality or conserve energy resources. On paper, this seems a natural fit for climate inventions. However, the catch is that these traditional “petition to make special” routes come with procedural requirements that the climate pilot had waived. An applicant must provide supporting documentation, and the standard is interpreted strictly (a minor environmental benefit will not suffice – it must be a core purpose of the invention). In practice, these petitions have been under-utilised historically, because preparing the required documents can be as burdensome as the normal examination itself. Under the climate pilot, by contrast, no special documentation was needed beyond a simple petition form and a statement of climate benefit.

The difference is subtle but significant. What once required a brief petition and a statement of environmental benefit now demands a full evidentiary showing which is hardly a “fast” track in any meaningful sense.

For small innovators, this change may alter filing behaviour. Some may turn to foreign offices with ongoing green patent initiatives like the UK, Canada, or Japan to secure early patents abroad, later leveraging those grants through the Patent Prosecution Highway to accelerate the U.S. counterpart. Others, constrained by cost or capacity, may simply wait.

Either way, the result is a slowdown. And in climate innovation, time is often the scarcest commodity.

Comment

The USPTO’s termination of the CCMPP marks more than the end of a short-lived administrative experiment; it illustrates a deeper philosophical question within patent law: Should urgency and public good justify differential treatment?

From a broader perspective, the termination could have a chilling effect on certain green innovations, especially those coming from smaller entities or university labs that relied on the prospect of quick patent turnaround. Those defending the closure maintain that the fairness and efficiency to all technologies should stand equal before the examiner’s desk. Yet, as with environmental regulation more broadly, equal treatment in form can mean unequal impact in substance. Technologies that serve a global public interest of reducing emissions, preserving biodiversity, mitigating catastrophe arguably merit some degree of procedural preference.

Seen through this lens, the pilot’s end feels less like a recalibration and more like an opportunity lost.

The story may not end here. Should backlog reduction truly follow, perhaps all applicants either green or otherwise will benefit from shorter wait times. But until then, U.S. climate innovators must proceed with fewer incentives, slower protection, and a heavier burden of proof.

This Katfriend suspects that history may remember the CCMPP not for its administrative detail, but for what its demise symbolised: the quiet turning down of the dial on green ambition at precisely the moment the world can least afford to lose momentum."