High-Efficiency Motors & Drives Patents: Top Companies & Trends 2026
- Concentrated at the top. The five most active assignees hold 53.1% of all 318 records in scope, and the top ten hold 66.0% — a narrow group of filers controls most of the claim space.
- Filing is climbing, not cooling. Annual filings doubled from 3 in 2021 to 6 in 2024, the last year the dataset treats as complete; 2025 and later are still filling in as publications lag behind filing dates.
- Control electronics dominate the classification mix. H02P (control of motors and generators) appears on 37.4% of records and A47L (cleaning and washing appliances) on 33.3%, showing how much of this field sits inside appliance-integrated drive control rather than motor design alone.
Filing growth compares 2021 (3 records) with 2024 (6) — 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 318 records in scope (CR5), not by the ranked leaders only.
What this landscape covers
This landscape tracks 318 patent families published between 2015 and 2026 that combine high-efficiency motor or drive terminology with energy-management concepts such as load control, specific energy use and efficiency metrics. The search deliberately pairs motor hardware language with control and consumption language, which is why the technology mix leans as heavily on control electronics as on motor construction itself.
Filings originate across a mix of receiving offices, with the United States and the European Patent Office the two largest gateways, followed by filings routed through Austria, Canada and the PCT system. The most-cited records in the set date back to the 1990s, a reminder that citation counts inside any searched corpus tend to favour older filings rather than current activity.
Let an AI agent run this analysis on your own technology
Pick a task. Every answer cites the patents behind it.
Filing trend and technology composition
Two views of the same 318-record set: how filing activity has moved year over year, and which IPC subclasses carry the claim language.
Filing trend, 2017–2026
Filings peaked so far at 15 in 2018, dipped in the years after, then rebuilt: 2021's count of 3 doubled to 6 by 2024, the last year with a complete publication window. 2025 and 2026 show fewer records only because recent filings have not finished publishing, not because activity has slowed.
Technology composition by IPC subclass
H02P (control of motors and generators, 37.4% of records) and H02K (electric motors and generators, 31.8%) anchor the core hardware and control claims. A47L (cleaning and washing appliances, 33.3%) and A47B (furniture, 25.2%) show how much of the corpus is driven by appliance manufacturers embedding efficient drives in dishwashers and similar products, while F04D (pumps, 6.3%), F25B (refrigeration, 5.3%) and A61C (dental equipment, 4.7%) mark smaller adjacent pockets. Because a single record can carry several classes, these shares add up to more than 100% of the 318 records and should be read individually, not summed.
Shares are the percentage of the 318 records in scope. A patent can carry several IPC classes, so the shares add up to more than 100%.
Go deeper on High-Efficiency Motors & Drives Patent Landscape with Eureka
This page is one run against one query. Ask Eureka your own question about high-efficiency motors & drives patent landscape and every answer comes back with the patent numbers behind it.
Try EurekaRepresentative and most-cited filings
Portable surface preparation and coating production apparatus and method thereof
The application describes a portable facility for surface coating and preparation that connects a blast pot control to smart devices for faster production cycles and lower operational costs. Air plenums and ventilation reduce energy consumption and improve worker safety, while nozzle design cuts blasting time, process noise and user fatigue.Filed by Blastmaster Holdings USA, LLC and published 2025-08-21, this record illustrates how energy-consumption claims now extend into industrial surface-preparation equipment well outside the appliance and motor-control core of the dataset.
| # | Publication no. | Patent title | Citations |
|---|---|---|---|
| 1 | US5470142A | Dishwasher | 177 |
| 2 | US5272429A | Air gap flux measurement using stator third harmonic voltage and uses | 165 |
| 3 | US6855016B1 | Electric watercycle with variable electronic gearing and human power amplification | 154 |
| 4 | US5755244A | Dishwasher | 144 |
| 5 | US20100125383A1 | Electronic method of controlling propulsion and regeneration for electric, hybrid-electric and diesel-electri… | 116 |
| 6 | US5191688A | Method for producing a superior longitudinal vibrator | 115 |
| 7 | WO1993012706A1 | dishwasher | 105 |
| 8 | US5136200A | Ultransonic motor | 93 |
| 9 | US20050166869A1 | Liquid piston internal combustion power system | 82 |
| 10 | US7191738B2 | Liquid piston internal combustion power system | 75 |
Citation counts reward older filings that have had more time to accumulate citations inside this corpus; treat them as a signal of influence within the searched set, not as a ranking of current-day importance.
Each row carries its publication number; clicking a row searches Eureka by that number.
Put your own technology through the same analysis
Eureka on the web
When you want the answer in the next five minutes.
The agent works the prompt against patents and technical literature, citing every source.
Run your analysis now →MCP server & REST API
When it has to run inside your own pipeline.
Patent search, landscape analysis and assignee resolution as MCP tools. Drop them into any agent framework, or call REST directly.
Browse MCP servers →What the numbers mean for a filing decision
Three read-outs from the dataset that matter more for strategy than the raw counts alone.
A narrow leadership group, not a fragmented field
With the top five assignees holding 53.1% of all 318 records and the top ten holding 66.0%, this is not a field of many equally-sized players. New entrants filing broad motor-control claims are likely to run into prior art from a small set of incumbents rather than a diffuse background.
Filing activity has doubled, not plateaued
Annual filings rose from 3 in 2021 to 6 in 2024, the last year the trend can be read as complete. Because publication lags filing by roughly 18 months, the apparent drop-off after 2024 reflects the publication pipeline still filling in, not a real slowdown.
Control claims outweigh pure motor-construction claims
H02P (control of motors and generators) sits on more records than any other subclass, ahead of H02K (motor and generator construction). Combined with A47L and A47B shares, this signals that a large share of filings are appliance makers claiming control and load-management logic around a motor, not motor designers alone.
Eureka can read the same corpus for gaps instead of for coverage: under-claimed branches adjacent to high-efficiency motors & drives patent landscape, with the prior art for and against each one.
Who is filing, and where the gaps sit
The ranked list covers 86 companies drawn from the 318 records in scope. Beyond the leaders, several adjacent sub-areas show thin, isolated filing rather than a dense competitive layer.
One filer sits well ahead of the rest
The leading assignee's 113 records dwarf the fifth-place count of 11 and the tenth-place count of 6, meaning the head of the ranking is dominated by a single very active filer rather than a tight cluster.
A steep drop after the leader, then a long tail
Filing counts fall sharply from the leader to fifth place, and again from fifth to tenth, before flattening into a long tail of assignees with only a handful of families each — typical of a field with one dominant incumbent and many opportunistic filers.
Co-filing is rare and concentrated on one pairing
Only 10 co-assignee pairs appear across the dataset, and the strongest of them links one manufacturer with a named individual inventor at 4 shared records. Most assignees in this field file solo rather than through joint ventures.
| Assignee | Recent year | YoY |
|---|---|---|
| Tyco Fire & Security GmbH | 1 | — |
| Fisher & Paykel Appliances Ltd | 0 | — |
| Venus Systems | 0 | — |
| Sargent Manufacturing Company | 0 | — |
| Spal Automotive | 0 | — |
| AeroVironment Inc | 0 | — |
| Pohang Iron & Steel Co., Ltd. (POSCO) | 0 | — |
| Embraco (Empresa Brasileira de Compressores S.A.) | 0 | — |
Where to take this analysis
The dataset points to a concentrated leadership group, doubling filing activity through 2024, and several thin adjacent branches. The next step is usually to test a specific claim against this set rather than read the trend lines alone.
Check freedom to operate before drafting
With over half of records held by five assignees, a new filing in motor control or appliance drive integration should be checked against their claim scope first.
Run a freedom-to-operate check in EurekaWatch the under-claimed pockets
Pump, refrigeration and dental-equipment drive control show markedly fewer records than the appliance and control-electronics core, which is where a narrowly drafted claim is more likely to clear prior art.
Explore white space in EurekaCommon questions about this landscape
The ranking covers 86 assignees across the 318 records in scope, and it is dominated at the top: the leading assignee alone holds 113 records, far ahead of the fifth-place holder at 11 and the tenth-place holder at 6. The top five assignees combined hold 53.1% of all records, and the top ten hold 66.0%, so most of the claim space sits with a small number of filers rather than being spread evenly. A company entering this space should expect to encounter prior art from this group first, not from the long tail below them.
Filing activity roughly doubled between 2021 and 2024, going from 3 to 6 annual filings in this dataset, which is the most recent span that can be treated as complete. Counts for 2025 and 2026 appear lower only because publication typically lags filing by about 18 months, so those years are still filling in rather than reflecting an actual decline. The historical peak so far was 15 filings in 2018. Read the most recent two years with that lag in mind rather than as a downturn.
Control of motors and generators (IPC class H02P) appears on 37.4% of the 318 records, making it the single largest classification, closely followed by cleaning and washing appliances (A47L) at 33.3% and electric motor and generator construction (H02K) at 31.8%. This mix shows the field is not just about motor hardware; a large share of filings claim control logic and load management built into appliances such as dishwashers. Smaller pockets, including pumps, refrigeration and dental equipment, each account for under 7% of records and represent narrower niches within the same search scope.
The smallest IPC pockets in this dataset — pump drive efficiency, refrigeration and heat-pump load control, dental-equipment motor control, and printed-circuit motor-drive assemblies — each carry noticeably fewer records than the appliance and control-electronics core that dominates the corpus. That gap does not guarantee an easy grant, but it does mean the incumbent leaders have spent less of their filing effort defending those specific applications. A narrowly drafted claim targeting one of these adjacent uses is more likely to clear the densest prior art than a broad motor-control claim filed against the core classes.
The most-cited records in this set date back to the 1990s and include dishwasher control patents and marine propulsion control patents, which reflects how citation counts accumulate over time inside any searched corpus rather than how important a technology is today. A record published last year has not had time to accumulate citations regardless of its technical merit. Use citation counts as one signal of historical influence on later filings, and weigh them against recent filing trends and IPC composition rather than treating them as a current-relevance score.
Research High-Efficiency Motors & Drives Patent Landscape in depth with Eureka
Go past this page: query the whole high-efficiency motors & drives patent landscape corpus yourself, in your own scope.
Every answer comes back with patent numbers you can open.
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.