Where does Dongguan Amperex Technology Limited rank among US patent assignees?

According to USPTO PatentsView (2015–2025 granted utility patents), Dongguan Amperex Technology Limited ranks #7,402 of 49,997 assignees by granted-patent volume, the same sort as the companies listing and top-holders ranking. See /methodology/#corpus-placement.

How many patents does Dongguan Amperex Technology Limited hold?

Dongguan Amperex Technology Limited holds 44 US utility patents granted between 2016 and 2025, spanning 15 technology areas.

What is Dongguan Amperex Technology Limited's Innovation Score?

Dongguan Amperex Technology Limited has an Innovation Score of 42.4 out of 100 (top 31% of the corpus). This composite metric weighs portfolio volume (40%), grant velocity (20%), technology breadth (25%), and claim depth (15%).

Is Dongguan Amperex Technology Limited's patent grant rate increasing or decreasing?

Dongguan Amperex Technology Limited's recent grant velocity is +5% compared to the prior five-year period (grant years, not application filing dates). The company is maintaining or growing its granted-patent output.

What does claim depth mean for Dongguan Amperex Technology Limited's patents?

Dongguan Amperex Technology Limited's patents average 14.8 claims each. This is an aggregate descriptive count from the grant record; it does not establish claim scope, legal strength, enforceability, or design-around risk.

How is the Dongguan Amperex Technology Limited patent data sourced?

All patent data comes from USPTO PatentsView, a public research dataset maintained by the United States Patent and Trademark Office covering US granted utility patents from 2015 to 2025.

USPTO 2015–2025 USPTO PatentsView Foreign Corporation

Dongguan Amperex Technology Limited

Q: What technology areas does Dongguan Amperex Technology Limited focus on?

Dongguan Amperex Technology Limited's top technology area is H01M (Processes OR Means, e.g. Batteries, FOR THE Direct Conversion OF Chemical Energy Into Electrical Energy) with 41 patents, ranking #159 of 2,332 assignees active in that subclass. Grants appear in 15 CPC subclasses total.

USPTO PatentsView assignee record - 44 granted patents across 15 technology areas, recorded in grant years 2016–2025. Grant-trend analysis is cross-referenced to USPTO Patent Public Search; it does not measure application filings, current R&D, or legal strength. Primary class: H01M (Processes OR Means, e.g. Batteries, FOR THE Direct Conversion OF Chemical Energy Into Electrical Energy).

Compiled by PlainPatent · May 15, 2026

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The verdict

According to USPTO PatentsView, Dongguan ranks #7,402 of 49,997 tracked US assignees by granted-patent volume, with 44 patents across 15 technology areas.

#7,402
of 49,997 US assignees by volume: Top 31%
by Innovation Score (42.4/100): 14.8
avg claims per patent: +5%
grant velocity, last 5 yrs

USPTO PatentsView assignee plate

Corpus R7402 · Foreign Corporation #7,402 · 44 grants

GRANTS-SMALL · UPPER-Q · PHOTO-FINISH · CPC-FOCUS · INNOV-PAR · CLAIMS-RICH · TYPE-FRNCORP · VEL-FLAT · BOOK-FULL

GRANTS-SMALL 44 grants
UPPER-Q #7,402/49,997
PHOTO-FINISH Dali Wireless
CPC-FOCUS H01M · 15 areas
INNOV-PAR 42.4/100
CLAIMS-RICH 14.8 claims/avg
TYPE-FRNCORP Foreign Corp
VEL-FLAT +5% vel
BOOK-FULL 10/10 fields

Nearest grant-volume peer: Dali Wireless, Inc. (±0 grants)

Instrument codes from this assignee’s USPTO PatentsView grant sheet: volume band, corpus rank, photo-finish peer, lead CPC, Innovation Score, claim depth, assignee type, velocity, and book completeness. Not a USPTO rating of patent strength.

How Dongguan’s 42.4 Innovation Score adds up

The same four weighted components behind every Innovation Score on PlainPatent: portfolio volume, grant velocity, technology breadth, and claim depth.

Volume 13.1 pts (31%) Velocity 6.7 pts (16%) Breadth 13.7 pts (32%) Claim depth 8.9 pts (21%)

Qualcomm Incorporated · highest

85
Cambridge GAN Devices · near

42
Dongguan Amperex… · this assignee

42
Samsung ELETRÔNICA… · near

42
Touch Bionics · near

42
Transphorm · near

42
3D Lighting… · lowest

7

What this shows Dongguan's Innovation Score is 42.4/100 (top 31% of the PatentsView-derived corpus). The chart places that score against the nearest Innovation Score peers plus corpus poles, not a reprint of the volume ranking.

Does more volume mean deeper claims for Dongguan?

Each dot is one of Dongguan’s 8 nearest volume peers (same corpus rank neighbourhood as the chart above), placed by total granted patents (horizontal) against average claims per patent (vertical). Dongguan’s own 14.8 claims/patent is at or below the 15.3 median for these volume peers. Volume here does not track with deeper claims; several lower-volume peers claim more thoroughly per patent.

Dongguan vs its 8 nearest volume peers: granted patents vs average claims per patent. Source: USPTO PatentsView.

Where Dongguan's grants concentrate

Dongguan Amperex Technology Limited is a focused PatentsView assignee: 15 CPC subclasses with 93.2% of grants classified under H01M (Processes OR Means, e.g. Batteries, FOR THE Direct Conversion OF Chemical Energy Into Electrical Energy). Peak complete grant year is 2017 (9 grants) versus a trough of 2 in 2016. By volume, Dongguan sits between Dali Wireless, Inc. and Euro-Pro Operating LLC.

Dongguan's three-year grant acceleration

Dongguan Amperex Technology Limited shows 13 grants in 2022–2024 against only 13 in 2019–2021. That prior window is too thin for a growth multiple (rename and spin-out assignees look artificially high when the baseline is near zero), so PlainPatent withholds a ranked acceleration claim here.

Dali Wireless

44
Datto

44
Delta Kogyo

44
Devialet

44
Daylight Solutions

44
Deephaven Data La…

44
Dialight

44
Euro-pro Operating

44
Dongguan Amperex… ◀

44

What this shows Dongguan holds 44 patents at rank #7,399, shown against the 8 assignees closest to it in grant volume rather than the industry's largest filers.

Companies ranked near Dongguan

By rank, the assignees closest to #7,399 in granted patent volume.

Leaders in H01M (Processes OR Means)

Other assignees with the most granted patents in Dongguan's primary technology class.

Assignees with similar portfolio profiles

Two PlainPatent-derived peer sets for Dongguan, neither rank-band nor same-CPC leaders (those blocks stay above). In H01M (Processes OR Means), Dongguan ranks #159 of 2,332 assignees by patent count in that subclass.

Similar innovation score

Nearest assignees by Innovation Score (42 here).

Samsung ELETRÔNICA DA AMAZÔNIA Ltda. 42 Transphorm Inc. 42 Touch Bionics Limited 42 Cambridge GAN Devices Limited 42

Dongguan's Innovation Score vs. every tracked assignee

Composite of portfolio volume, grant velocity, technology breadth, and claim depth (0–100)

42 Top 31% higher than 69% of 49,997 US assignees

Each bar is a band; taller bars hold more US assignees. The dashed line + filled bar mark this entry. Hover or tap any bar for its full count, share, and where it sits relative to this entry.

Source USPTO PatentsView, PlainPatent Innovation Score · 2015–2025

USPTO utility patent grants by year · 2016–2025

Grants by year

Teal-shaded recent years (2020–present) versus the 2016–2019 baseline. Full figures in the table below.

View data table

Dongguan Amperex Technology Limited patent grants by year, 2015–2025
Year	Patents Granted	Share of Period
2016	2	4.5%
2017	9	20.5%
2018	2	4.5%
2019	6	13.6%
2020	3	6.8%
2021	4	9.1%
2022	3	6.8%
2023	3	6.8%
2024	7	15.9%
2025partial year	5	11.4%

Which technologies does Dongguan Amperex Technology Limited patent most?

H01M - Processes OR Means, e.g. Batteries, FOR THE Direct Conversion OF Chemical Energy Into Electrical Energy 41

Y02E - Reduction OF Greenhouse GAS [GHG] Emissions, Related TO Energy Generation, Transmission OR Distribution 37

Y02P - Climate Change Mitigation Technologies IN THE Production OR Processing OF Goods 17

C09J - ADHESIVES; Non-mechanical Aspects OF Adhesive Processes IN GENERAL; Adhesive Processes NOT Provided FOR ELSEWHERE; USE OF Materials AS Adhesives 4

Y02T - Climate Change Mitigation Technologies Related TO Transportation 3

H02J - Circuit Arrangements OR Systems FOR Supplying OR Distributing Electric POWER; Systems FOR Storing Electric Energy 3

Y10T - Technical Subjects Covered BY Former US Classification 2

C08K - Use of inorganic or non-macromolecular organic substances as compounding ingredients 2

G01R - Measuring Electric VARIABLES; Measuring Magnetic Variables 2

C09K - Materials FOR Miscellaneous Applications, NOT Provided FOR Elsewhere 1

C08G - Macromolecular Compounds Obtained Otherwise Than BY Reactions Only Involving Unsaturated Carbon-to-carbon Bonds 1

C08F - Macromolecular Compounds Obtained BY Reactions Only Involving Carbon-to-carbon Unsaturated Bonds 1

B32B - Layered Products, i.e. Products Built-up OF Strata OF Flat OR Non-flat, e.g. Cellular OR Honeycomb, Form 1

G01N - Investigating OR Analysing Materials BY Determining Their Chemical OR Physical Properties 1

B60L - Propulsion OF Electrically-propelled Vehicles ; Supplying Electric Power FOR Auxiliary Equipment OF Electrically-propelled Vehicles ; Electrodynamic Brake Systems FOR Vehicles IN General ; Magnetic Suspension OR Levitation FOR VEHICLES; Monitoring Operating Variables OF Electrically-propelled Vehicl 1

Top 15 of 15 technology areas

More on this record

Data Source

USPTO PatentsView, US granted patents 2015–2025

View all rankings → How is Innovation Score calculated?

What to do with this data

Dongguan Amperex Technology Limited's patent record in context - here's where to go next.

Dongguan Amperex Technology Limited's lead technology class is H01M (Processes OR Means, e.g. Batteries, FOR THE Direct Conversion OF Chemical Energy Into Electrical Energy), 93.2% of its portfolio - see every assignee active in that class. Explore H01M
Ranked #7,402 of 49,997 tracked assignees by patent volume - see the full leaderboard. See the ranking
Compare Dongguan Amperex Technology Limited against Dali Wireless, Inc., an assignee filing at a similar volume. Compare portfolios
Innovation Score of 42.4/100 blends volume, velocity, technology breadth, and claim depth. How it's calculated

Figures reflect USPTO PatentsView grant data through May 2026; pending applications not yet granted are not counted.

Data sourced from USPTO PatentsView - official U.S. government patent data. See our methodology for computation details. Retrieved and formatted by PlainPatent

Disclaimer: This information is provided for informational purposes only and does not constitute professional advice. Data is sourced from the USPTO PatentsView database. Consult a qualified professional before making decisions based on this data.

Read our methodology - how this data is sourced, computed, and verified.

Data sources used on this page

USPTO PatentsView - the disambiguated bulk patent-grant, assignee, and CPC data this page's figures are derived from. patentsview.org
Cooperative Patent Classification (CPC) - the joint USPTO/EPO classification scheme used to group patents by technology area. cooperativepatentclassification.org
USPTO Patent Public Search - the official interface to verify the status of any individual patent. ppubs.uspto.gov

Compiled by PlainPatent, US Patent Intelligence Editorial Process · May 15, 2026

Every figure on PlainPatent is rendered directly from USPTO source data, no number is typed in by an editor. This page draws directly on USPTO source data, no figure is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of May 2026.