Blower & Debris Equipment Patents: Top Companies & Trends 2026
- Filings roughly tripled in three years. recorded filings climbed from 6 in 2021 to 20 in 2024, a +233% rise, before 2025-26 figures understate due to publication lag.
- The field is only moderately concentrated. the top 5 assignees hold 23.6% of all 296 records and the top 10 hold 38.2% — a leader plus a genuine long tail, not a lockout.
- Cleaning and airflow classes dominate the claim space. A47L, E01H and A01G together anchor the largest shares of records, while air-conditioning and harvesting classes trail well behind.
Filing growth compares 2021 (6 records) with 2024 (20) — 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 296 records in scope (CR5), not by the ranked leaders only.
What the dataset covers
This landscape draws on 296 published patent records filed or published between 2015 and mid-2026, indexed against blower nozzle geometry, air volume and air speed control, impeller design, backpack ergonomics, noise spectrum management and dust dispersal. The search string pairs blower and blower-vacuum terminology with the specific engineering levers — airflow, acoustics, and operator-worn form factors — that separate a generic fan patent from one squarely aimed at leaf and debris handling equipment.
Records were pulled from six receiving offices, with the United States the largest single office by a wide margin, followed by Europe, Japan, WIPO/PCT, Canada and the United Kingdom filings. Because publication typically lags filing by around 18 months, the 2025 and 2026 counts in any trend view are still filling in and should not be read as a slowdown.
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Filing trend and technology composition
Two views of the same 296-record dataset: how filing volume has moved year over year, and which IPC subclasses carry the claim density.
A three-year filing surge, still being counted
Annual filings moved from 4 in 2017 to a peak of 20 in 2024, with the 2021-2024 span alone showing +233% growth. The 2025 and 2026 totals will rise as later publications land — treat the most recent two years as incomplete, not as a plateau.
Cleaning and street-clearing classes lead
A47L (cleaning and washing appliances) sits just ahead of E01H (street and track cleaning) and A01G (horticulture and forestry) as the three largest classes by record share. F04D (non-positive-displacement pumps) and B08B (general cleaning) form a second tier, while B41J, F24F and A01D each cover a smaller slice — remembering that a single record can carry several classes, so these shares sum to more than 100% of the 296 records.
Shares are the percentage of the 296 records in scope. A patent can carry several IPC classes, so the shares add up to more than 100%.
Go deeper on Blowers and Debris Handling Equipment with Eureka
This page is one run against one query. Ask Eureka your own question about blowers and debris handling equipment and every answer comes back with the patent numbers behind it.
Try EurekaThe most-cited prior art and a representative recent filing
US20200305360A1 — An Adjustable Nozzle For a Blower (Husqvarna, 2020)
A portable leaf blower comprises a blower tube with an adjustable nozzle portion that reconfigures between an air speed mode — higher air speed, lower volumetric flow — and an air volume mode with lower air speed and higher flow.The claim sits directly on the air-speed/air-volume tradeoff that defines much of the surrounding art in this dataset.
| # | Publication no. | Patent title | Citations |
|---|---|---|---|
| 1 | US6105206A | Portable electrically powered blower apparatus | 202 |
| 2 | US5507271A | Air-actuated ball-throwing device and method therefor | 119 |
| 3 | US5640781A | Apparatus for styling natural and artificial hair | 58 |
| 4 | US20160345714A1 | Back-mounted power tool systems and methods of use | 57 |
| 5 | US5604954A | Blower-vacuum device | 56 |
| 6 | US20060122762A1 | On demand boost conditioner (ODBC) | 53 |
| 7 | US5352276A | Water remediation | 53 |
| 8 | US5689852A | Portable blower/vac | 50 |
| 9 | US20030233730A1 | Variable speed leaf blower | 49 |
| 10 | US2226630A | Cleaning device | 49 |
Citation counts favour older filings simply because they have had more time to be cited — read them as a signal of influence on the field, not as a ranking of current relevance.
Each row carries its publication number; clicking a row searches Eureka by that number.
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Three read-outs from the filing trend, concentration figures and technology mix that matter for a freedom-to-operate or whitespace call.
The surge is real, but recent years are undercounted
Filings rose from 6 in 2021 to 20 in 2024. That is a genuine acceleration in claim activity around airflow and nozzle control, not an artifact of a bigger search net — the same IPC classes hold across the period. But because publication lags filing by about 18 months, 2025-26 counts will keep climbing; don't read the tail-off as demand cooling.
A leader, then a long tail
The top 5 assignees account for 23.6% of all 296 records and the top 10 account for 38.2%. That leaves well over 60% of filings spread across the rest of the ranked leaders — a field with room for a differentiated entrant, not one locked up by two or three players.
Cleaning appliance claims still outweigh pure aerodynamics
A47L (cleaning and washing appliances) at 18.2% and E01H (street and track cleaning) at 17.9% together outpace F04D (non-positive-displacement pumps, the fan/impeller class) at 10.8%. That suggests more claim pressure on how debris is collected and directed than on the impeller itself.
Eureka can read the same corpus for gaps instead of for coverage: under-claimed branches adjacent to blowers and debris handling equipment, with the prior art for and against each one.
Who is filing, and how concentrated the field is
The ranking covers 100 assignees across 296 records — a broad field, not a top-10 or top-50 shortlist. Read the leader's 16 records and the fifth-place company's 12 against that denominator to see how thin the lead actually is.
A lead measured in single digits over the field
The top-ranked assignee holds 16 records against a fifth-place company at 12 and a tenth-place company at 7 — a gradual taper rather than a cliff. No single filer commands the technology outright.
Over 60% of filings sit outside the top 10
With the top 10 assignees holding 38.2% of the 296 records in scope, the remaining 90 ranked companies and unranked entrants collectively hold the majority. Co-assignee activity is also sparse — the strongest pairing recurs only three times — pointing to mostly independent filing rather than joint-venture patterns.
Recent-year activity has gone quiet among named filers
Several assignees tracked for momentum show zero filings in the latest year, and one shows a -75% year-on-year drop. Given the 18-month publication lag, this reads as incomplete data rather than a real pullback — but it also means recent competitive signal from named leaders is thin right now.
| Assignee | Recent year | YoY |
|---|---|---|
| Whisper Aero Inc | 1 | -75% |
| Black & Decker Corp | 0 | — |
| Markem Imaje Ltd | 0 | — |
| Chervon HK Ltd | 0 | — |
| Corteva Inc | 0 | — |
| Canadian Tire Corporation | 0 | — |
| Truvian Sciences Inc | 0 | — |
| STORCI | 0 | — |
Where to take this analysis
The dataset points to a field with room to file, but the claim geometry around nozzle airflow modes is already dense near the most-cited prior art.
Map freedom-to-operate against the nozzle-mode claims
The adjustable air-speed/air-volume nozzle mechanism sits close to the field's most-cited prior art and its most recent representative filing. Any new nozzle design should be checked against that specific claim boundary before development spend.
Explore the claim space in EurekaTrack the assignees showing zero recent-year filings
Several named assignees show no filings in the latest tracked year. Whether that reflects a real pause or publication lag is worth confirming before assuming the field has gone quiet around them.
Monitor assignee activity in EurekaTest the under-claimed branches for a first-filer position
Backpack ergonomics, noise spectrum shaping and battery-electric impeller integration all show lighter record density than the core cleaning classes. That is where an efficiently drafted first claim has the most room.
Run a whitespace search in EurekaCommon questions about blower and debris equipment patents
Across the 296 records in this dataset, the leading assignee holds 16 records, with the fifth-ranked company at 12 and the tenth at 7 — a gradual taper rather than one company dominating outright. The top 5 assignees combined account for 23.6% of all 296 records, and the top 10 combined account for 38.2%. That leaves the majority of filings spread across a long tail of the other ranked companies, so a competitive scan needs to look well past the leaders to get a full picture.
Filings grew sharply, from 6 in 2021 to 20 in 2024, a +233% increase over that span. The 2025 and 2026 figures currently look lower, but that is expected: publication typically lags filing by about 18 months, so the most recent one to two years of any patent trend are always undercounted at the time they're pulled. Treat 2024 as the last complete year and expect the 2025-26 counts to rise as more records publish.
The largest IPC subclasses by record share are A47L (cleaning and washing appliances) at 18.2%, E01H (street and track cleaning) at 17.9%, and A01G (horticulture and forestry) at 16.6%, out of 296 records in scope. F04D, the class covering non-positive-displacement pumps and fans, sits lower at 10.8%, suggesting collection and debris-directing mechanisms attract more claim activity than the impeller or fan itself. Because a single record can carry multiple IPC classes, these shares add up to more than 100% of the record total.
The filing describes a portable leaf blower with an adjustable nozzle portion that switches between an air-speed mode — higher air speed and lower volumetric flow — and an air-volume mode with lower air speed and higher flow. It is a representative recent filing in this dataset because that speed-versus-volume tradeoff is a recurring engineering and claims focus across the corpus. Anyone designing a reconfigurable nozzle should map their mechanism against this claim boundary specifically, not just the general nozzle category.
Relative to the dense cleaning and street-clearing classes, sub-areas like backpack harness ergonomics, noise spectrum shaping at the blade tip, dust dispersal suppression in vacuum mode, and battery-electric impeller drive integration show comparatively lighter record density in this dataset. That does not guarantee an easy grant, but it does indicate less crowded prior art to design around. A focused claim in one of these branches is worth testing against a full freedom-to-operate search before committing engineering resources.
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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.