Refuse Collection Equipment Patents: Who Leads, Where Gaps Are 2026
- One filer holds the field. A single assignee accounts for 93 of 108 records in scope, with the next four together adding just 13 more.
- Filing activity has already peaked. Volume rose to 25 records in 2020 and has since fallen back toward single digits, with the 2022 midpoint at 17.
- Claims cluster tightly around refuse handling. 90.7% of records sit in B65F, while positioning, load-handling and AI-adjacent classes each cover a tenth or less.
What this landscape covers
This dataset tracks 108 published records matching refuse collection vehicles, municipal sanitation equipment and street sweepers, filtered to claims touching compaction ratio, automated side loaders, odor and leachate containment, electric drivetrain duty cycles and dust suppression under IPC classes B65F3, E01H1 and B60L50. The scope runs from 2015 through the 2026 data cut-off, though the most recent year is necessarily undercounted because publication typically lags filing by around eighteen months.
The picture that emerges is narrow rather than crowded: one company's automated side loader and packer system lineage dominates the citation record, filing volume has already come down from its 2020 peak, and the IPC spread shows most activity concentrated in refuse handling and storage rather than spreading into adjacent navigation, robotics or AI-driven sorting classes.
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Filing trend and technology composition
108 records span the 2015-2026 window. The trend and the IPC composition below use the full record set as their denominator throughout.
A peak in 2020, then decline
Filings were at zero in 2017, climbed to a peak of 25 in 2020, sat at 17 by the 2022 midpoint, and have since fallen toward a single record in the most recent (partial) year — consistent with a technology whose core claim space was staked out early rather than one still being actively contested.
Concentration in refuse handling, thin coverage elsewhere
B65F (refuse handling & storage) appears in 90.7% of the 108 records, far ahead of positioning (G01S, 13.0%), load-handling vehicles (B60P, 12.0%) and time/attendance devices (G07C, 11.1%). Robotics (B25J), navigation (G01C) and street cleaning (E01H) each sit near 10%, and AI-based computing (G06N) appears in only 6.5% of records — a signal that autonomy and AI framing are still a minority thread within a field otherwise defined by mechanical handling claims.
Shares are the percentage of the 108 records in scope. A patent can carry several IPC classes, so the shares add up to more than 100%.
Go deeper on Refuse Collection and Municipal Sanitation Equipment with Eureka
This page is one run against one query. Ask Eureka your own question about refuse collection and municipal sanitation equipment and every answer comes back with the patent numbers behind it.
Try EurekaThe patents setting the citation baseline
Boomless automated side loader for refuse collection vehicle having lift arm with non-extendable upper end
A lift arm pivots between upper and lower ends on a pair of horizontal support rails that slide beneath the vehicle body across its width. Opposing refuse container grippers mount on a carriage that reciprocates along the lift arm to a curved upper portion, dumping refuse into the hopper. A hydraulic piston and cylinder assembly, mounted beneath the vehicle body between the rails, drives the extension and retraction of the mechanism.Filed by AMREP Manufacturing Company, LLC; granted 1997-12-30. With 73 citations, this is the most-cited record in the dataset and anchors the automated side loader claim family that later filings in this space have had to design around.
| # | Publication no. | Patent title | Citations |
|---|---|---|---|
| 1 | US5702225A | Boomless automated side loader for refuse collection vehicle having lift arm with non-extendable upper end | 73 |
| 2 | US20200247609A1 | Semi-autonomous refuse collection | 68 |
| 3 | US6007291A | Packer system for refuse collection vehicle | 44 |
| 4 | US20200339346A1 | Refuse collection vehicle controls | 43 |
| 5 | US9834377B1 | Lifting arm assembly for automated side loader used on refuse collection vehicle | 38 |
| 6 | US20040045117A1 | Power management system for street sweeper | 31 |
| 7 | US6959466B2 | Power management system for street sweeper | 27 |
| 8 | US20190385384A1 | Refuse container identification using parcel data | 25 |
| 9 | US11222491B2 | Refuse container identification using parcel data | 24 |
| 10 | US20160177524A1 | Vehicle With Internal and/or External Monitoring | 20 |
Ranked by citation count within the searched corpus; older mechanical patents accumulate citations simply by being on file longer, so treat this as a signal of foundational influence rather than current commercial weight.
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Three patterns stand out once the ranking, the trend and the IPC spread are read together.
A single filer, not a competitive field
The leading assignee alone holds 93 of 108 records; the next four together add only 13 more, and the remaining two assignees account for the rest of the 100.0% covered by all seven ranked companies. This is not a landscape with rival programmes racing each other — it is one company's portfolio with a small periphery.
Filing has cooled sharply even for the leader
The top assignee filed only 1 record in the latest year, down 94% year-on-year, while every other ranked assignee shows zero latest-year activity. Combined with a 2020 peak of 25 records and a declining midpoint of 17 in 2022, the trend points to a claim space that has already been substantially staked out.
Autonomy and AI framing remain a minority claim
Against B65F's 90.7% presence, AI-based computing (G06N) appears in just 6.5% of records, and robotics (B25J) and navigation (G01C) each sit near 10%. Sanitation equipment patenting here is still overwhelmingly mechanical-handling claims rather than software- or sensor-driven autonomy claims.
Eureka can read the same corpus for gaps instead of for coverage: under-claimed branches adjacent to refuse collection and municipal sanitation equipment, with the prior art for and against each one.
Who holds the claim space
Seven assignees make up the entire ranked field returned for this search, and the distribution is heavily skewed toward one leader.
The dominant filer
One assignee accounts for the large majority of records in this dataset, anchored by the automated side loader and packer system patents that also carry the highest citation counts in the corpus.
A thin periphery of single-digit filers
Beyond the leader, the remaining six assignees combine for only 15 records, with the fifth-ranked company holding just 1. None of them show latest-year filing activity in this dataset.
US-centred filing with modest international spread
The United States receives the largest share of filings at 69, followed by Canada (11), Europe via EPO (10), Australia (9) and WIPO/PCT filings (6), with a single filing at AT.
| Assignee | Recent year | YoY |
|---|---|---|
| HEIL CO | 1 | -94% |
| Federal Signal Corporation | 0 | — |
| AMREP | 0 | — |
| Tennant Company | 0 | — |
| Anhui Nanbo Intelligent Environmental Equipment Co., Ltd. | 0 | — |
| THE HARTFIEL | 0 | — |
| LOAD MASTER CORP | 0 | — |
Where to take this analysis
The dataset points to specific next steps depending on whether the goal is freedom-to-operate, sourcing or R&D scoping.
Check freedom-to-operate against the leader
With one assignee holding 93 of 108 records, any new automated side loader or packer system design should be checked claim-by-claim against that portfolio before committing to a mechanical architecture.
Run a freedom-to-operate search in EurekaScope the AI and autonomy gap
G06N coverage sits at just 6.5% of records against a 90.7% B65F core, suggesting autonomy-first claims may face thinner prior art than mechanical-handling claims.
Explore white space in EurekaTrack the long tail for licensing signals
Six assignees outside the leader combine for only 15 records; periodic monitoring can catch shifts in ownership or new filing activity early.
Set up assignee monitoring in EurekaCommon questions on this landscape
One assignee dominates this dataset, holding 93 of the 108 records in scope, which is 98.1% of all records once the top five assignees are combined. The remaining six assignees together account for a small fraction of filings, with the fifth-ranked company holding just 1 record. This level of concentration means freedom-to-operate analysis in this space should start with that single leading portfolio rather than a broad competitive set.
Filing activity peaked at 25 records in 2020, had fallen to 17 by the 2022 midpoint, and has continued declining since, with the leading assignee's own latest-year filings down 94% year-on-year. Because publication lags filing by roughly eighteen months, the very latest year in any dataset like this is always undercounted, but the multi-year decline predates that effect. Overall the pattern reads as flat-to-declining rather than an emerging technology still being actively staked out.
US5702225A claims a boomless automated side loader mechanism for refuse collection vehicles, built around a lift arm supported on horizontal rails that slide beneath the vehicle body, with a carriage-mounted gripper system that reciprocates to a curved upper portion for dumping refuse into the hopper. It is the most-cited record in this dataset at 73 citations, and its non-extendable upper-end lift arm design and hydraulic drive assembly form part of the baseline architecture that later automated side loader filings have had to work around. Anyone designing a new side-loading mechanism should review this claim set closely before finalising a lift arm geometry.
Relative to the 90.7% of records carrying B65F (refuse handling & storage) classifications, AI-based computing under G06N appears in only 6.5% of the 108 records, and robotics (B25J) and navigation (G01C) each sit near 10%. This suggests that claims combining refuse collection equipment with AI-driven sorting, autonomous navigation, or robotic manipulation face a thinner prior art base than purely mechanical handling claims. That gap is a reasonable starting point for scoping new filings, though it should be verified against a fresh search before committing resources.
The United States is the largest receiving office in this dataset with 69 filings, well ahead of Canada (11), the European Patent Office (10), Australia (9), WIPO/PCT filings (6) and a single filing at the Austrian patent office. This distribution reflects a filing strategy centred on the US market with modest international extension, rather than a broadly globalised portfolio. Companies evaluating market entry should weigh this concentration when assessing where competitors have and have not sought protection.
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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.