ASHP HVAC System Integration Patent Snapshot 2026
The patent corpus for air-source heat pump HVAC system integration is very small, with only 4 patent families in scope and activity concentrated almost entirely in China. The field is at an early, nascent stage with sparse and intermittent filings, signalling that systematic IP coverage of this integration niche has yet to be established by any major player.
A highly fragmented, nascent corpus dominated by Chinese filers
The visible assignee structure is extremely fragmented: six applicants each hold a single patent record, with Chinese Research Academy of Environmental Sciences ranking first by a tie at the top of the leaderboard alongside five other entities.
The top five filers account for 83% of the combined total among the ranked applicants visible in this query, yet because the corpus is so small, this concentration reflects a thin field rather than entrenched incumbency. No single organization has established a commanding portfolio.
| # | Applicant | Patent records | Share |
|---|---|---|---|
| 1 | Chinese Research Academy of Environmental Sciences | 1 | |
| 2 | Zhejiang Kemao Energy-Saving and Environmental Protection Engineering Equipment Co., Ltd. | 1 | |
| 3 | Beijing Zhongkuang Sailibete Energy-Saving Technology Co., Ltd. | 1 | |
| 4 | INTACO | 1 | |
| 5 | Beijing Tellhow Intelligent Engineering Co., Ltd. | 1 | |
| 6 | Shaanxi Xunyi Qinggangping Mining Co., Ltd. | 1 |
The leaders’ positions imply that no applicant has yet pursued a broad, integrated filing strategy for ASHP-HVAC integration. Entry barriers built purely from patent coverage remain low, making this an accessible space for new technical investment.
The most recent filing periods (approximately 2024–2026) are subject to publication lag and likely under-represent current activity; conclusions about recent momentum should be treated as provisional. Longer-window growth, applicant concentration, and technology-route coverage are therefore more reliable signals than the latest-year bar alone.
Intermittent filing activity with a domestic heating and heat-pump technology focus
The annual trend and technology composition charts together reveal a field that has seen only sporadic filing activity since 2017, with the technology mix centred on domestic heating systems and refrigeration/heat-pump sub-classes.
Annual filing trend
Filing activity peaked modestly in 2017 with two records, fell to zero for four consecutive years, then produced single records in 2022 and 2023 before returning to zero in 2024 and 2025. Given standard publication lag, 2024–2025 figures almost certainly under-count true activity and should not be read as an absence of ongoing work.
↗ Hover for values · click a bar to ask EurekaTechnology composition
The visible IPC branches are F24D (Domestic heating systems) and F25B (Refrigeration and heat pumps), each with three patent records, confirming that the core ASHP integration work sits at the intersection of heat distribution and refrigeration cycle engineering. Adjacent branches — E21B (Earth and rock drilling/wells), F22B (Steam generation and boilers), and F24H (Fluid heaters and water heaters) — each appear only once, indicating early-stage or opportunistic cross-domain applications.
↗ Hover for values · click a bar to ask EurekaHighly cited patent families surfaced by the query
Citation-heavy patent families returned by the query. Use this section as citation context, not as a curated list of the most topic-specific patents.
Hybrid heating controller
A central heating system 10 comprises an emitter circuit 50 circulating water that is heated either by a heat pump 30 (e.g. air source heat pump) or a boiler 40 (e.g. combination boiler). A hybrid controller determines whether the heat pump or boiler heats water based upon at least one of a fluid temperature and a delay timing. Ideally a valve 110 is… (excerpt from the patent abstract)
| # | Patent | Citations |
|---|---|---|
| 1 | 空气源热泵驱动水蒸汽调制机 | 9 |
| 2 | 新能源多能互补智能控制系统 | 5 |
| 3 | 一种可实现水汽转换的低温空气源热泵装置 | 1 |
Ranked by total forward citations. Citation counts favour older and broadly cited patent families, and broad or adjacent patents may appear when they match the search scope. Treat this section as citation context, not as a curated list of the most topic-specific patents. Some patent titles may be shown in their original, non-English language where an accurate translation could not be guaranteed.
Assignee snapshot from the current evidence set
The applicants below are visible in this query result. Because the evidence set is relatively small, read this section as a directional snapshot rather than a full competitive ranking.
Chinese Research Academy of Environmental Sciences
Holds 1 patent record with a technology focus on refrigeration and heat-pump sub-classes (F25B30, F25B43, F25B47), reflecting a research-oriented approach to the thermodynamic core of ASHP integration. No momentum trend is available in the evidence, suggesting this is an earlier filing rather than a recent acceleration.
patent records: 1INTACO
Holds 1 patent record with coverage across domestic heating systems (F24D12, F24D19) and fluid heaters (F24H15), indicating a system-level integration perspective spanning heat distribution and water heating. Momentum is classified as a new entrant, meaning all activity falls within the most recent filing window.
patent records: 1Frequently asked questions
The corpus stands at 4 patent families in scope. This is a very small body of prior art, indicating that systematic IP coverage of this specific integration niche has not yet been established.
Chinese Research Academy of Environmental Sciences ranks first, but holds only 1 patent record — the same count as every other applicant in the ranking. There is no meaningful gap between the leader and any other filer.
All 4 patent families are filed in China, and one record also appears under the United Kingdom jurisdiction. The United States, EPO, Japan, and South Korea show no coverage in this corpus, leaving major markets open.
F24D (Domestic heating systems) and F25B (Refrigeration and heat pumps) each appear in three patent records, making them the core technical classes. E21B, F22B, and F24H each appear once as adjacent branches.
The filing trend shows two records in 2017, none from 2018 to 2021, one each in 2022 and 2023, and none recorded in 2024–2025. The recent zero counts are affected by publication lag and should not be read as confirmation of decline. The overall volume remains too small to characterise a clear growth trajectory.
Two co-filing pairings are identified: Shaanxi Xunyi Qinggangping Mining Co., Ltd. with Beijing Zhongkuang Sailibete Energy-Saving Technology Co., Ltd., and individual inventors Chen Jiang with Chou Qiaoli. Both are new-entrant pairings; no established institutional consortium is evident.
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Disclaimer. This page is generated from Patsnap Eureka data drawn from a limited snapshot of global patent and scientific-literature records, and is provided for general information and reference only.
Patent data carries inherent limitations: recent filings (typically the most recent 18–24 months) are under-counted due to standard publication lag; counts may be reported at either a patent-family or a patent-record basis and are not always directly comparable; classification, applicant-name, and citation data may contain errors, duplicates, or omissions; and the underlying search query defines and constrains the scope shown. As a result, the analysis may be incomplete or inaccurate and may not reflect the full technology landscape.
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