Introduction

The United States and China, both among the world's largest economies, have patent systems that are an interesting contrast regarding development, working mechanisms, and strategic implications for global innovation and trade. The observations into the complexities of these IP (IP) rights reflect each nation's economic and social development, its cultural legacy from the past, and the way its judicial structures were constructed.

The United States, with an age-old patent regime, has long served as an example in the world of IP rights. Its system, built over the course of centuries of legal refinement and technological progress, is the basis for its innovation economy and a reflection of its cultural and historical commitment to IP protection.

China entered the patent field much later, and its system developed at a fast pace and in continuous reformulation to keep up with its expanding economy and technological aspirations. Filing and examination of IP rights in China, keeping in line with its distinctive history and cultural evolution, have become a key aspect of trade development, particularly between developed and developing countries. This comparative review aims to explore the nuances of these two disparate patent systems, comparing their foundations, the organizations involved, and the processes that guide patent applications, with a focus on how these systems have evolved within their respective socio-economic and cultural contexts.

Recent trends underscore a significant increase in patent activity in both countries, highlighting the global significance of understanding these IP systems for effective trade engagement. In 2019 alone, China recorded approximately 1.5 million utility patent applications[1], a figure that commands nearly half of the global total.[2] This remarkable volume is not just a function of market dynamics but also reflects the influence of various non-market factors such as state policies, subsidies, and strategic filings. Similarly, the United States, with its mature and sophisticated system, represents a complex landscape shaped by its own unique set of regulations, standards, and cultural approaches to innovation and trade.

Between January 2024 and June 2025 the United States Patent and Trademark Office (USPTO) and the China National IP Administration (CNIPA) each launched sweeping programs that remake the tempo, cost, and doctrinal contours of examination. For U.S. lawyers to whom Track One, Alice eligibility arguments, and routine after-final practice are business as usual, the greatest shocks are overseas: Chinese examiners now issue faster first actions than American examiners do, and regional authorities began cracking down on generative-AI drafting. In contrast, the USPTO is sunsetting its Accelerated Examination (AE) program, raising front-end fees, and publishing the first agency-wide artificial-intelligence strategy. This article elaborates on the new trends, compares their realistic impact, and offers guidelines for building trans-Pacific filing strategies.

United States: 2024-25 Developments

In January 2025, the USPTO published a stand-alone Artificial Intelligence Strategy, reflecting institutional seriousness regarding the incorporation of AI in prior-art search, quality review, and examiner training. [3] The report also foretells additional policy on inventorship, disclosure and ethical use of large-language models. Prior to the strategy, the Office issued Inventorship Guidance for AI-Assisted Inventions (effective 13 Feb 2024), reaffirming that inventors must be natural persons but detailing how examiners may apply the "significant-human-contribution" test derived from Thaler v. Vidal, 43 F.4th 1207 (Fed. Cir. 2022). The guidance reminds applicants that failure to name all natural-person inventors may invalidate a patent and that applicants must police text generated by AI for accuracy under Rule 11 requirements. On 16 July 2024, the USPTO also updated its Subject-Matter-Eligibility examples to include three involving machine-learning and speech-separation inventions. The hypotheticals are specifically aimed at the fact that assertions reciting operations "not practicable in a human mind" or particular advances to computer ability might avoid being characterized abstract ideas under Step 2A of the Alice/Mayo test.

Perhaps the most disruptive procedural change is the USPTO’s decision—published 10 June 2025 in the Federal Register—to cease accepting AE petitions filed on or after 10 July 2025.[4] Introduced in 2006, AE guaranteed a final decision within twelve months, but petitioners were asked to provide a pre-examination search document, non-patent literature citations, and claim charts showing each limitation. The Office established that AE wastes more examiner time compared to Track One or the Patent Prosecution Highway ("PPH") and offers no comparable reduction in overall pendency. Practitioners having built portfolio strategies based on AE are therefore required to transition to Track One (average first-action < six months) or rely on foreign allowances to launch PPH.

A stand-alone final rule, Setting and Adjusting Patent Fees During Fiscal Year 2025, raises filing, search, excess claim, and Track One fees by roughly 5 to 15 percent.[5] Multiple dependent claim fees, already significant, climb even further—potentially disproportionately affecting biotech and chemical claims. Budgets need to be brought up to date on a timely basis by applicants, as bills for 2025 filings reflect the new schedule.

First-Office-Action pendency averaged 17.3 months in April 2025—down from 19 months a year earlier but still trailing CNIPA’s timeline.[6] Work sharing via the PPH remains on an upward trend: among 103,264 petitions as of 31 May 2025, the Office approved 93,699—a success rate more than 90 percent.[7]As AE is shutting down, PPH and Track One are the only regularly fast lanes now; hence, achieving a good search report abroad can save close to a year of U.S. pendency.

China: 2024-25 Developments

After extensive drafts and revisions, the CNIPA published the final versions of the revised Rules for the Implementation of the Patent Law and the Guidelines for Patent Examination on December 21, 2023. These significant revisions, which incorporate the 4th amendments of the Patent Law, became effective as of January 20, 2024, a landmark in the Chinese IP landscape.[8]

The revisions in both the rules and examination guidelines are part of China's ongoing effort to harmonize its patent law system with other major jurisdictions while still retaining its uniqueness. The revisions touch on various patent application and enforcement issues, including priority claim changes, incorporation by reference, and Patent Term Extension (PTE)/Patent Term Adjustment (PTA). These changes are discussed below. This evolution of Chinese patent law is in a general context of increased activity and focus on innovation and IP in China. From 2019 to 2022, China experienced significant intensification of patent application filings. While in 2019 approximately 1.4 million patent applications were filed, in 2022 this number was at approximately 1.6 million. Utility models saw even more remarkable growth, with applications increasing from over 2.2 million in 2019 to nearly 3 million in 2022. These figures indicate China's growing contribution to the global IP arena and its endeavors in promoting innovation.[9]

In the judicial arena, China has also manifested a heightened commitment to the protection of industrial property rights. It is indicated in the "Judicial Protection of IP Rights in Chinese Courts (2022)" report that first-instance patent infringement cases totaled 38,970 in 2022, a 23% increase year over year. Additionally, the median damages awarded in patent litigation have increased from 100,000 yuan in 2012 to 200,000 yuan, and the average damages awarded have risen from 220,000 yuan to 2.58 million yuan in the same period. These statistics point to the dramatic turnaround in patent protection and enforcement in China. The new rules, published at the close of 2023 and effective from the start of 2024, will bring significant changes to the process of applying for, processing, and granting patents in China.[10]

These rules cover the most significant aspects of change and their probable impacts on inventions and designs filed in the nation. The evolving nature of China's patent prosecution system reflects its firm stance on speeding up innovation and the strategic value it places on IP rights in its quest for technological advancement and global influence.[11]

China's Fourth Amendment to the Patent Law (which took effect on 1 June 2021) introduced regional design rights, patent-term adjustment (PTA), and broader amendment options, but many details were awaiting implementing rules. Those particulars arrived when the State Council promulgated Order No. 764, amending the Implementing Regulations, and CNIPA amended the Guidelines for Patent Examination, effective 20 January 2024. The package introduces partial-design protection, allowing applicants to claim a bezel, icon, or other subset of a product with broken lines, expands deferred examination to inventions, utility models, and designs, permitting a one-to-three year delay at the applicant's request, establishes a PTA process loosely modeled on U.S. practice, and extends pre-substantive-examination amendment windows and gives effect to Hague filings. These reforms put China at the cutting edge of design decisions and provide procedural levers—both acceleration and delay—unavailable in the United States.

Among the highlights of the major proposals are a new Chapter 9.5 for AI and "bitstream" inventions, express inventiveness-assessment criteria requiring a "technical contribution" beyond conventional frameworks, and—of specific interest to dual filings—a requirement on applicants filing an invention patent and a utility model (UM) for the same subject matter on the same day to abandon the UM before the invention is granted. The draft also provides numerous examples of when big-data or AI claims violate public-order provisions of Patent Law § 5.[12]

China has promoted "high-quality, high-efficiency" examination for a long time, but the statistics finally back up the slogan: during a 24 April 2025 State Council press conference CNIPA announced an invention-patent examination duration of 15.5 months on average and an internal decision "accuracy rate" of 95.2 percent.[13] While CNIPA and the USPTO measure pendency differently, the disparity is clear to applicants who now routinely receive their Chinese first actions before their U.S. counterparts.

While CNIPA encourages AI internally for prior-art search, regional IP Protection Centers wield autonomy over pre-examination services. On 10 June 2025 the Nanjing IP Protection Center issued a notice prohibiting direct use of generative-AI content in patent applications submitted for its fast-track program, citing concerns about authenticity and traceability.[14] The ban covers claim language, specifications, and supporting test data. Other municipalities may adopt similar rules, creating a compliance patchwork that foreign applicants must monitor carefully.

Comparative Insights

Although both offices celebrate artificial intelligence and faster pendency, they are heading in different directions in trade-offs between speed, quality, and applicant burdens.

CNIPA's fifteen-month average pendency tops the USPTO's seventeen-month benchmark, but the U.S. statistic includes applicant delay whereas the Chinese metric does not. Nevertheless, practitioner lore uniformly confirms that a Chinese first action will issue six-to-nine months earlier than a U.S. first action for Chinese and U.S. applications filed the same week. The USPTO is closing the gap with AI tools and more PPH, but AE's retirement closes a guaranteed-twelve-month pipeline.

The strategy of the USPTO is open and centralized: publish a national strategy, craft inventor-eligibility guidelines, and fund controlled pilot programs (while barring generative-AI outputs in final work product internally). China takes the opposite combination—introduce AI in CNIPA's search system but allow regional centers to impose total bans on applicant drafting tools. Both offices insist that inventors must be natural persons, but the Chinese draft Guidelines devote nearly twenty pages to analyzing situations where AI-generated data practices will infringe ethics or privacy law, suggesting a broader policy concern about algorithmic control.

The USPTO removes one track of acceleration (AE) despite raising fees, pressuring applicants into Track One or foreign-priority-based PPH. China offers both acceleration—domestic pre-examination and PPH—and delay through deferred examination. The asymmetry permits a cost-sensitive applicant to tactically delay its Chinese examination and accelerate the U.S. case to create PPH-eligible work, or vice-versa depending on market priority.

As USPTO fees rise and CNIPA fees hold constant, China becomes comparatively cheaper. Translation, localization, and attorney review costs still reduce some of the gains, but these are largely one-time expenditures, whereas heightened U.S. excess-claim and multiple-dependency fees recur in every continuation.

The USPTO's post-first-action amendments remain restricted under Rule 116, often requiring an RCE. China has allowed broader amendments until the first Office Action is received; the 2025 draft Guideline states that if an applicant files an invention and a UM for the same subject matter on the same day, one must be abandoned before the invention can issue—shutting off a previously popular hedging approach.

Conclusion – Future Speculations and Beyond Borders

As China's patent system has grown at an accelerating rate under a policy-driven and centralized system of administration, the latest political gossip in the form of unsubstantiated rumors regarding possible modifications in the country's top leadership slots—e.g., rumors concerning Xi Jinping's intra-party standing—has reopened discussion of the continuity and vector of institutional change. While these incidents remain unverified and speculative, they understandably pose profound questions for China's IP regime.

If future leadership were to favor a more procedure-based, decentralized leadership paradigm like the former "collective leadership" period, one might anticipate a change in the CNIPA's mode of operation—from politically guided acceleration to a more procedurally neutral scrutiny. This development could reduce regionally imposed constraints (e.g., generative-AI draft prohibition) and foster increased transparency for procedural rules and examination uniformity. Conversely, any short-term political unpredictability could lead to conservative agency action, delayed implementation of reforms, or uneven enforcement across local IP offices.

Lastly, while current reforms—i.e., the 2024 Implementing Rules and the 2025 draft Guidelines—hypothesize an assurance-inflated institutional trajectory, practitioners should remain alert for potential realignments in policy implementation, particularly regarding AI regulation, dual filings, and examination velocity. Institutional shifts of political focus may not explicitly redefine patent laws, but they could realign the CNIPA's priorities and its handling of foreign applicants, in the event that economic recovery and global expansion emerge as updated priorities.

In brief, as the world is coming to realize the intrinsic value of IP to economic and technological advancement, the evolution of patent systems in major economies like the U.S. and China is not just a domestic matter but a chief fulcrum on which the future of global innovation will hinge. The policy insights derived from their experiences will inform global policy orientations and reform agendas for decades to come, underscoring the profound impact that wisely crafted IP legislation can exert on the organization of global trade and innovation.