Patent law has always been sensitive to the winds of political change, and today this is particularly evident in the context of US climate policy. In April 2025, the United States Patent and Trademark Office (USPTO) quietly concluded its Climate Change Mitigation Pilot Program (CCMPP) — an initiative that once provided green inventions with a direct “green light” in the patent queue. Introduced to accelerate innovations capable of mitigating global warming, its termination signals a shift in administrative priorities and political tone. For inventors in the clean-tech sector, the loss of this expedited review is perceived not as a mere technical footnote, but as a full-fledged retreat from a strategic course, prompting the question: has the patent sector lost its enthusiasm for green innovation?
The CCMPP, launched in 2022, was a symbolically powerful gesture, allowing developers of greenhouse gas reduction technologies to undergo examination faster, without the usual fees or procedural hurdles. Initially, its reception was modest, but after expanding its scope in 2023 to include emission monitoring and prevention technologies, the number of filings surged, reaching nearly 1,400 applications by early 2025. The benefits were obvious: inventors received their first Office Action within 2-3 months, whereas the standard queue lasts about 16 months, and the total prosecution time can exceed four years. For climate-tech startups, these additional months were often the deciding factor in securing investment. While similar “green channels” operate successfully in the UK, Canada, Japan, and other countries, the US has chosen a different path.
The USPTO cited resource management as the official justification for closing the program. Facing a backlog of 700,000 unexamined applications, the Office stated that maintaining a dedicated fast lane diverts examiners whose time is better spent reducing overall delays for all technology types. However, behind this technocratic explanation lies a clear shift in the political vector, following new executive orders aimed at rolling back several climate initiatives of the previous administration. This decision has already drawn criticism from patent attorneys who see it as a symbolic retreat — a signal that environmental innovations no longer enjoy special encouragement in US patent policy, a move that appears regressive against the backdrop of international dynamics.
In practice, the consequences for applicants are immediate: they return to the standard queue, where the wait for the first examination report lasts over a year. Now, only two primary paths remain: either pay for “Track One” prioritized examination, which may be unaffordable for university labs or small firms, or file a petition based on environmental importance under the old rules. The latter option is arduous, as it requires a full evidentiary basis and a rigorous justification that environmental improvement is the primary purpose of the invention, whereas the now-closed pilot program required only a simple statement. This leads to a slowdown of processes, and in the field of climate innovation, time is the scarcest resource.
The termination of the CCMPP raises a profound philosophical question: should urgency and public good justify differential treatment in patent law? While proponents of the closure insist on the equality of all technologies before the examiner, equal treatment in form can mean unequal impact in substance. Technologies that serve global interests — reducing emissions, preserving biodiversity, or mitigating disasters — deserve a certain procedural advantage. From this perspective, the end of the program looks like a missed opportunity. Perhaps history will remember this step not for its administrative details, but as the moment when the “volume” of environmental ambition was turned down precisely when the world could least afford to lose momentum.
Founder of Research & Patent group Intectica, author of patent algorithms for solving problems in the pharmaceutical industry, patent attorney certified in all intellectual property objects (Patents, Design, TM), with education in chemistry and law, chief expert of the patent institution of Ukraine UKRPATENT (1997-2004). Member of international organizations, including ECTA, PTMG, UAM, lecturer and blogger.
