API & Integration Technology Patents: Leaders & Filing Trends 2026
- Concentrated but not locked up. The ranked leaders' top 5 account for 20.3% of all 207,854 records in scope, and the top 10 reach 29.6% — leaving most of the field to a long tail of single- and few-filing entrants.
- Filing has cooled from its 2022 peak. Filings ran from 987 in 2017 to a peak of 1,922 in 2022; the last complete comparison window shows 2021's 1,685 filings falling to 1,337 in 2024, a 21% pull-back.
- Momentum has swung hard among the largest filers. Several top-ranked assignees show sharp year-over-year declines in the most recent filing year, including drops of roughly 68-100%, though publication lag means the newest year is always undercounted.
Filing growth compares 2021 (1,685 records) with 2024 (1,337) — a three-year span. 2024 is the most recent year we treat as complete: publication lags filing by roughly 18 months, so 2025 onwards are still filling in and any growth rate that ends there would understate the field. Top-5 share is the combined record count of the five largest assignees divided by all 207,854 records in scope (CR5), not by the ranked leaders only.
What this landscape covers
This dataset tracks patent activity where application programming interfaces, service interfaces and software APIs intersect with the mechanics of building and shipping software: source code, software modules, test cases, deployment pipelines and distributed execution. That combination captures the infrastructure layer of modern software delivery — not just the interface contract itself, but how it gets built, tested and deployed against it.
207,854 published records fall within scope across the 2015-2026 window. The receiving-office split is heavily weighted toward the United States, with meaningful volume also filed at the EPO and through the WIPO PCT route, and smaller but non-trivial filing at the Australian, Canadian and UK offices.
Filing trend and technology composition
Two views of the same 207,854-record corpus: how filing volume has moved year over year, and how those records distribute across IPC subclasses. Because a single record can carry multiple IPC classes, the subclass shares below sum to more than the record total — that is expected, not an error.
Filing trend, 2017-2026
Filings rose from 987 in 2017 to a peak of 1,922 in 2022. The comparison that matters for planning is 2021 to 2024 — the last year publication lag lets us treat as complete — where volume fell from 1,685 to 1,337, a 21% decline. Years after 2024 will continue to fill in as later-filed applications publish, so treat 2025-2026 figures as a floor, not a ceiling.
Technology composition by IPC subclass
G06F (electric digital data processing) dominates at 6.9% of all records, more than double the next subclass. H04L (digital information transmission) sits at 2.5%, with G06Q (business/commerce processing) and G06N (AI-based computing) each in the low single digits. The AI-adjacent G06N share, while still small in absolute terms, is worth watching given how much of the API surface being claimed today is oriented toward model-serving and inference pipelines.
Shares are the percentage of the 207,854 records in scope. A patent can carry several IPC classes, so the shares add up to more than 100%.
Go deeper on API & Integration Technology Patent Landscape with Eureka
This page is one run against one query. Ask Eureka your own question about api & integration technology patent landscape and every answer comes back with the patent numbers behind it.
Try EurekaMost-cited records and a representative claim
US11403136B1 — Task execution application programming interface
A task execution application programming interface may include a pipeline execution service interface configured to communicate between a task image and a pipeline execution service adapter. The pipeline execution service adapter may be configured to receive, from a pipeline execution service, a request to execute the task image in a pipeline. The request may include arguments. The task image may include executable code and an execution environment. The pipeline execution service interface may be further configured to obtain results by executing the executable code using the arguments in the execution environment.Filed by Intuit, granted 2022-08-02. It illustrates how deployment-pipeline claims are now being drafted around the interface layer itself, not just the underlying execution engine.
| # | Publication no. | Patent title | Citations |
|---|---|---|---|
| 1 | US20030018830A1 | Adaptive communication application programming interface | 2,472 |
| 2 | US20120069131A1 | Reality alternate | 2,110 |
| 3 | US7100195B1 | Managing user information on an e-commerce system | 1,647 |
| 4 | US20100333116A1 | Cloud gateway system for managing data storage to cloud storage sites | 1,349 |
| 5 | US20070255653A1 | Mobile Person-to-Person Payment System | 1,254 |
| 6 | US20130132854A1 | Service Plan Design, User Interfaces, Application Programming Interfaces, and Device Management | 1,214 |
| 7 | US6643652B2 | Method and apparatus for managing data exchange among systems in a network | 1,171 |
| 8 | US20050024341A1 | Touch screen with user interface enhancement | 1,139 |
| 9 | US20020191029A1 | Touch screen with user interface enhancement | 1,107 |
| 10 | US20040162871A1 | Infrastructure for accessing a peer-to-peer network environment | 902 |
Citation counts reward older filings simply for having had longer to accumulate citations inside this corpus — read them as a signal of influence on the field's early architecture, not as a ranking of current importance.
Each row carries its publication number; clicking a row searches Eureka by that number.
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The composition and trend data point to a field that is broad at the base and dense only at the very top, with the newest filing years still understated by publication lag.
The top of the field is thinner than it looks
The five leading assignees account for 20.3% of all 207,854 records in scope, and the top 10 combined reach 29.6%. That leaves the large majority of filings spread across a long tail of entities filing in smaller numbers, which is where most freedom-to-operate analysis will actually need to focus.
Volume has pulled back from its 2022 peak
Filing volume peaked at 1,922 in 2022 after climbing steadily from 987 in 2017. The most recent complete comparison window, 2021 to 2024, shows a 21% decline in filings — a real pull-back, not a data artefact, though 2025-2026 figures will still rise as later applications publish.
Digital data processing dominates the class mix
G06F carries 6.9% of all records, well ahead of H04L at 2.5% and G06Q at 1.4%. G06N, the AI-based computing subclass, sits at 0.9% — a small but rising share worth tracking as model-serving interfaces get drafted alongside traditional API claims.
Several top filers have sharply cut recent output
Recent-year momentum among some of the largest historical filers shows steep year-over-year drops, several in the 68-100% range. This could reflect a genuine pause, a shift to trade-secret protection, or simply publication lag understating the newest year — the pattern is worth watching rather than treating as settled.
Eureka can read the same corpus for gaps instead of for coverage: under-claimed branches adjacent to api & integration technology patent landscape, with the prior art for and against each one.
The assignee landscape
The ranked list covers 100 companies drawn from the 207,854 records in scope. A handful of large technology and semiconductor firms sit at the top, but the concentration figures show the field is far from a two- or three-player market.
One filer sits well ahead of the field
The leading assignee's record count is more than three times the count at fifth place, which sits at 5,232. That gap says more about sustained multi-jurisdiction filing than about any single technical breakthrough — families are the fairer unit for judging actual invention volume.
The drop-off from 5th to 10th is gradual
Fifth place holds 5,232 records and tenth place holds 3,467 — a real but gradual decline, not a cliff. That shape suggests a genuinely competitive second tier rather than a field dominated by two or three players.
Co-assignment is mostly internal, not cross-company
The strongest co-assignee pairs in the data link a single organisation's own regional subsidiaries rather than independent companies collaborating. That points to internal IP-management structure — filing through multiple corporate entities — rather than joint-venture activity in this space.
| Assignee | Recent year | YoY |
|---|---|---|
| NVIDIA Corporation | 29 | -68% |
| Capital One Services, LLC | 7 | -71% |
| Huawei Technologies Co., Ltd. | 1 | -92% |
| SAP SE | 1 | -67% |
| International Business Machines Corporation (IBM) | 0 | -100% |
| Microsoft Corporation | 0 | — |
| Amazon Technologies, Inc. | 0 | -100% |
| Microsoft Technology Licensing, LLC | 0 | -100% |
Where to take this analysis
The dataset points to specific follow-up work depending on whether the goal is freedom-to-operate, whitespace scouting, or tracking a specific competitor's filing behaviour.
Check freedom to operate against the top 10
With 29.6% of all records held by the top 10 ranked assignees, any new filing in the deployment-pipeline or service-interface space should be checked against those portfolios first, then widened to the long tail.
Run a freedom-to-operate check in EurekaWatch the AI-serving interface subclass
G06N's 0.9% share is small today but sits inside a field where G06F claims already dominate — model-serving APIs are a plausible next density point.
Track this subclass in EurekaRe-run the trend once 2025-2026 fill in
Because publication lags filing by roughly 18 months, the 2025-2026 numbers shown here will rise. A follow-up pull in a year will give a truer read on whether the 2021-2024 pull-back continued or reversed.
Set a monitoring alert in EurekaCommon questions on API and integration technology patents
The ranked assignee list is led by a large technology company with 16,478 records, well ahead of fifth place at 5,232 and tenth place at 3,467. That said, the top 10 combined only reach 29.6% of all 207,854 records in scope, so no single company or small group controls the field outright. Most of the filing volume sits in a long tail of companies filing in smaller numbers, which is where a freedom-to-operate search usually needs to spend the most time.
Filing volume grew from 987 records in 2017 to a peak of 1,922 in 2022, then pulled back — the last complete comparison window shows 1,685 filings in 2021 falling to 1,337 in 2024, a 21% decline. Publication lags filing by roughly 18 months, so 2025 and 2026 figures in any dataset will keep rising as more applications publish; they should not yet be read as a continuation of the decline. A fair read is that filing has cooled from its 2022 high, not that the field is shrinking outright.
G06F, the general electric digital data processing subclass, dominates at 6.9% of all 207,854 records in scope — more than double the next largest subclass, H04L (digital information transmission) at 2.5%. Business-process claims under G06Q and AI-model claims under G06N follow at smaller shares. Because a single patent can carry several IPC classes, these percentages add up to more than 100% of the record total, which is expected and not a data error.
The clearest signal of open claim space is technology areas with thin filing density relative to the size of the surrounding field, such as test-case generation for distributed pipelines, cross-service authentication schemas, and AI-model-serving API contracts. These sit adjacent to the heavily claimed G06F and H04L subclasses but have not attracted the same filing volume yet. A first claim in these areas would benefit from anchoring specifically to the deployment or execution mechanics rather than the interface concept alone, since broad interface claims are already dense with prior art.
The underlying search combines interface-related terms — application programming interface, service interface, software API — with software-delivery terms such as source code, software module, test case, deployment pipeline, and distributed execution, searched across titles, abstracts, claims and descriptions. It covers publications from 2015-01-01 through the 2026-08-31 cut-off, returning 207,854 records. Because it is publication-based, the most recent one to two years are understated relative to eventual final counts.
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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.
Nothing on this page constitutes an exhaustive prior-art, novelty, freedom-to-operate, or validity search, nor does it constitute legal, financial, investment, or professional advice, and it should not be relied upon as such. Any patent, commercial, or strategic decision should be verified independently and reviewed with qualified patent, legal, and domain professionals. Patsnap makes no warranties, express or implied, as to the accuracy, completeness, or fitness for any particular purpose of the information presented.
Machine translation. Assignee and organisation names originally recorded in Chinese, Japanese or Korean have been rendered into English by an AI translation step so that the tables stay readable. These renderings are best-effort and may not match a company’s registered English name; the original name is what the underlying patent record carries, and it is what any Eureka query launched from this page uses.