Seat Comfort Patents: Leaders, Trends & White Space 2026
- Filings sit flat, not falling. 2021 and 2024 both land at 141 filings a year, a 0% change over that span — the field has plateaued after peaking at 189 in 2020, not declined.
- No single company controls the field. The leader holds 146 records and the top 5 combined account for just 14.0% of all 3,508 records in scope — this is a fragmented landscape, not a walled one.
- Chairs and vehicle seats overlap heavily. A47C (chairs, sofas & beds) and B60N (vehicle seats) each cover roughly two-fifths of records, showing the same comfort mechanisms get claimed in both furniture and automotive contexts.
Filing growth compares 2021 (141 records) with 2024 (141) — 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 3,508 records in scope (CR5), not by the ranked leaders only.
What this landscape covers
This landscape covers patent families addressing seat comfort and occupant support — pressure distribution across a seat surface, foam hardness, lumbar and cushion design, ventilation channels, massage function, and the subjective rating methods used to score them. The search spans 3,508 published records filed between 2015 and mid-2026, drawn from filings at receiving offices including the United States, Europe, China, WIPO, Japan and India.
The technology sits at the junction of furniture engineering and vehicle interior design: the same pressure-sensing and cushioning claims recur whether the seat belongs to a car, an office chair, or a medical transport device. That overlap shapes where filing pressure concentrates and where it does not.
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Filing trends and technology composition
Two views of the same 3,508 records: how filing volume has moved year over year, and how those records distribute across the IPC subclasses that define the technology.
Filing volume plateaus after a 2020 peak
Annual filings rose from 119 in 2017 to a peak of 189 in 2020, then settled into a flat pattern: 2021 and 2024 both recorded 141 filings, a 0% change across that three-year span. Because publication lags filing by roughly 18 months, the lower counts shown for 2025 and 2026 reflect incomplete data rather than an actual slowdown.
Chairs and vehicle seats dominate, therapy and plastics shaping trail
A47C (chairs, sofas & beds) and B60N (vehicle seats & interior) each cover roughly two-fifths of the 3,508 records, confirming that comfort claims are filed almost as often for furniture as for vehicles. A61G (patient transport), A61H (physical therapy & massage) and B60R (vehicle accessories) sit in the 8-12% range, with B29C (plastics shaping) and A61F (implants) each under 6% — smaller but present adjacent branches.
Shares are the percentage of the 3,508 records in scope. A patent can carry several IPC classes, so the shares add up to more than 100%.
Go deeper on Seat Comfort and Occupant Support with Eureka
This page is one run against one query. Ask Eureka your own question about seat comfort and occupant support and every answer comes back with the patent numbers behind it.
Try EurekaA foundational measurement patent
US20060150756A1 — Method and device for determining the sitting comfort of a seat cushion, which is perceived by a person
A method for determining seat comfort includes measuring pressure distribution over a seat surface using a pressure sensing system, measuring actual deformation of the seat surface using a deformation sensing system, and computing a value of seat comfort from the measured deformation and pressure distribution. The apparatus pairs a pressure sensing system with a deformation sensing system and an evaluation unit that computes comfort from both measurements together.Filed by Kassing, Lothar; published 2006-07-13.
| # | Publication no. | Patent title | Citations |
|---|---|---|---|
| 1 | US20050046584A1 | Asset system control arrangement and method | 1,779 |
| 2 | US20060208169A1 | Vehicular restraint system control system and method using multiple optical imagers | 935 |
| 3 | US7167796B2 | Vehicle navigation system for use with a telematics system | 664 |
| 4 | US20030209893A1 | Occupant sensing system | 652 |
| 5 | US7164117B2 | Vehicular restraint system control system and method using multiple optical imagers | 586 |
| 6 | US7663502B2 | Asset system control arrangement and method | 547 |
| 7 | US5074583A | Air bag system for automobile | 407 |
| 8 | US5871258A | Chair with novel seat construction | 371 |
| 9 | US6059368A | Office chair | 366 |
| 10 | US4655505A | Pneumatically controlled seat for vehicle | 352 |
Ranked by citation count within the searched corpus; older records accumulate more citations simply by having been in circulation longer, so treat this as a signal of influence rather than current relevance.
Each row carries its publication number; clicking a row searches Eureka by that number.
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Browse MCP servers →What the numbers mean for filing strategy
Three patterns worth acting on: where filing pressure has concentrated, where it has not, and what the citation record says about which claims still carry weight.
Leadership is real but not dominant
The leading assignee holds 146 records against a field of 3,508, and the top 5 combined reach only 14.0% of all records in scope. That leaves the large majority of filings spread across a long tail of single- and few-filing entrants — this is a field where a strong claim from a smaller player can still matter.
Flat, not declining
Annual filings held steady at 141 in both 2021 and 2024, a 0% change over that span, after peaking at 189 in 2020. Given the roughly 18-month publication lag, the lower figures for 2025 and 2026 in the raw data should not be read as a drop-off.
Furniture and vehicle claims overlap
A47C (chairs, sofas & beds) and B60N (vehicle seats & interior) each sit near two-fifths of the 3,508 records. Because a record can carry both classes, the same pressure-distribution and cushioning claims often serve both a furniture filing and an automotive one.
Older sensing patents still anchor the field
The most-cited records in this corpus date to the mid-2000s and concern occupant sensing and restraint-system imaging rather than cushion design itself. That reflects how citation counts favour age within a searched corpus — treat them as evidence of influence on later filings, not as a ranking of current importance.
Eureka can read the same corpus for gaps instead of for coverage: under-claimed branches adjacent to seat comfort and occupant support, with the prior art for and against each one.
Who is filing, and where the field has room
The leaders in this dataset span automotive seating specialists, office furniture makers and vehicle OEMs — a mix that reflects the furniture/automotive overlap seen in the IPC data. Recent-year momentum is uneven: several of the historically active filers show flat or declining year-on-year activity in the latest year of data.
A concentrated top, a long tail beneath
The leading assignee's 146 records sit well ahead of fifth place at 73 and tenth place at 46, but the gap narrows quickly — beyond the top 10, filing counts drop into single and low double digits across the remaining ranked companies.
Recent activity has cooled among historic leaders
Several of the most established filers show sharp year-on-year declines or zero filings in the latest year of data. Given the publication lag, this may partly reflect filings still working through to publication rather than an actual pullback in R&D.
Joint filing is limited and OEM-centred
Only 10 co-assignee pairs appear in the dataset, and the strongest of them links two automotive OEMs. Co-filing between a seating specialist and a vehicle maker also appears, but at a much smaller scale — most assignees in this field file independently.
| Assignee | Recent year | YoY |
|---|---|---|
| TS Tech Co., Ltd. | 1 | -83% |
| Lear Corporation | 1 | -80% |
| Herman Miller, Inc. | 0 | — |
| Delta Tooling Co., Ltd. | 0 | — |
| Steelcase Inc. | 0 | — |
| Hyundai Motor Co., Ltd. | 0 | -100% |
| Kia Corporation | 0 | -100% |
| DEKA Products LP | 0 | -100% |
Where to take this analysis
The dataset points to a field with an open top and a still-thin set of adjacent claims. Two directions follow naturally from that.
Map the white space before filing
Ventilation channel design, dynamic lumbar actuation and subjective-rating calibration all show thinner filing density than core cushion and pressure-sensing claims. A freedom-to-operate check against the specific claims in this space, rather than the field as a whole, is the more useful next step.
Explore white space in EurekaTrack momentum shifts among leaders
Several historically active filers show sharp year-on-year declines in the latest data, while the overall field holds flat. Watching which specific assignees resume filing as 2025-2026 data completes will show whether this is a genuine slowdown or a publication-lag artefact.
Set up assignee tracking in EurekaCommon questions about this landscape
The leading assignee in this dataset holds 146 records, ahead of fifth place at 73 and tenth place at 46. However, the top 5 assignees combined account for only 14.0% of the 3,508 records in scope, so no single company controls the field. The remaining 90 ranked companies each hold smaller counts, forming a long tail of active but individually modest filers.
Filing volume peaked at 189 records in 2020 and has since held roughly flat, with 2021 and 2024 both recording 141 filings — a 0% change over that three-year span. The lower counts shown for 2025 and 2026 in raw data reflect the roughly 18-month lag between filing and publication, not an actual decline. Treat any apparent recent drop with that lag in mind rather than reading it as a slowdown.
A47C covers chairs, sofas and beds generally, while B60N covers vehicle seats and interior components specifically. In this dataset the two classes overlap heavily — each covers roughly two-fifths of the 3,508 records — because the same pressure-distribution, cushioning and comfort-rating methods are often claimed for both furniture and automotive seating in a single family or across related filings.
US20060150756A1 describes a method and apparatus for determining seat comfort by pairing a pressure-sensing system with a separate deformation-sensing system, then computing a comfort value from both measurements together. The claim value lies in combining two distinct sensing modalities rather than relying on pressure data alone. Anyone building a comfort-scoring or subjective-rating system that fuses pressure and deformation readings should review this record's specific claim language before finalising a measurement architecture.
The IPC composition shows dense filing in core chair and vehicle-seat classes (A47C, B60N) but comparatively thinner coverage in ventilation channel design, dynamic lumbar actuation, massage-function integration and subjective-rating calibration methods. These adjacent branches sit closer to the smaller IPC shares such as A61H and B29C rather than the dominant two classes. A first claim in one of these areas would need to specify the mechanism precisely — for example, a ventilation channel geometry tied to a measurable airflow or temperature outcome — rather than claiming the general concept broadly.
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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.