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

According to USPTO PatentsView (2015–2025 granted utility patents), Dongguan Poweramp Technology Limited ranks #16,744 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 Poweramp Technology Limited hold?

Dongguan Poweramp Technology Limited holds 17 US utility patents granted between 2021 and 2025, spanning 6 technology areas.

What is Dongguan Poweramp Technology Limited's Innovation Score?

Dongguan Poweramp Technology Limited has an Innovation Score of 47.9 out of 100 (top 18% of the corpus). This composite metric weighs portfolio volume (40%), grant velocity (20%), technology breadth (25%), and claim depth (15%).

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

Insufficient historical data is available to calculate a velocity trend for Dongguan Poweramp Technology Limited.

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

Dongguan Poweramp Technology Limited's patents average 15.3 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 Poweramp 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 Poweramp Technology Limited

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

Dongguan Poweramp 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 15 patents, ranking #408 of 2,332 assignees active in that subclass. Grants appear in 6 CPC subclasses total.

USPTO PatentsView assignee record - 17 granted patents across 6 technology areas, recorded in grant years 2021–2025. 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 #16,744 of 49,997 tracked US assignees by granted-patent volume, with 17 patents across 6 technology areas.

#16,744
of 49,997 US assignees by volume: Top 18%
by Innovation Score (47.9/100): 15.3
avg claims per patent

USPTO PatentsView assignee plate

Corpus R16744 · Foreign Corporation #16,744 · 17 grants

GRANTS-MICRO · MID-PACK · PHOTO-FINISH · CPC-NARROW · INNOV-PAR · CLAIMS-RICH · TYPE-FRNCORP · SPAN-YRS · BOOK-RICH

GRANTS-MICRO 17 grants
MID-PACK #16,744/49,997
PHOTO-FINISH Dolby Video…
CPC-NARROW H01M · 6 areas
INNOV-PAR 47.9/100
CLAIMS-RICH 15.3 claims/avg
TYPE-FRNCORP Foreign Corp
SPAN-YRS 2021–2025 · 5y
BOOK-RICH 9/10 fields

Nearest grant-volume peer: Dolby Video Compression, LLC (±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 47.9 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 10.0 pts (21%) Velocity 20.0 pts (42%) Breadth 8.7 pts (18%) Claim depth 9.2 pts (19%)

Qualcomm Incorporated · highest

85
Dongguan Poweramp… · this assignee

48
3D Lighting… · lowest

7

What this shows Dongguan's Innovation Score is 47.9/100 (top 18% 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 15.3 claims/patent is at or below the 16.6 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 Poweramp Technology Limited is a focused PatentsView assignee: 6 CPC subclasses with 88.2% 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 2024 (5 grants) versus a trough of 2 in 2021. By volume, Dongguan sits between Dolby Video Compression, LLC and ECO Electrical Systems, Inc.

Dongguan's three-year grant acceleration

Dongguan Poweramp Technology Limited shows 11 grants in 2022–2024 against only 2 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.

Dolby Video Compr…

17
Domantis

17
Dominion Energy

17
Dongguan Haohong…

17
Dynabook

17
E-circuit Motors

17
E-makeco

17
ECO Electrical Sy…

17
Dongguan Poweramp… ◀

17

What this shows Dongguan holds 17 patents at rank #16,751, 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 #16,751 in granted patent volume.

Leaders in H01M (Processes OR Means)

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

Dongguan's Innovation Score vs. every tracked assignee

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

48 Top 18% higher than 82% 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 · 2021–2025

Grants by year

Teal-shaded recent years (2020–present) versus the 2021–2019 baseline. Full figures in the table below.

View data table

Dongguan Poweramp Technology Limited patent grants by year, 2015–2025
Year	Patents Granted	Share of Period
2021	2	11.8%
2022	2	11.8%
2023	4	23.5%
2024	5	29.4%
2025partial year	4	23.5%

Which technologies does Dongguan Poweramp Technology Limited patent most?

H01M - Processes OR Means, e.g. Batteries, FOR THE Direct Conversion OF Chemical Energy Into Electrical Energy 15

Y02E - Reduction OF Greenhouse GAS [GHG] Emissions, Related TO Energy Generation, Transmission OR Distribution 15

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

Y02P - Climate Change Mitigation Technologies IN THE Production OR Processing OF Goods 2

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 2

G01R - Measuring Electric VARIABLES; Measuring Magnetic Variables 1

Top 6 of 6 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 Poweramp Technology Limited's patent record in context - here's where to go next.

Dongguan Poweramp Technology Limited's lead technology class is H01M (Processes OR Means, e.g. Batteries, FOR THE Direct Conversion OF Chemical Energy Into Electrical Energy), 88.2% of its portfolio - see every assignee active in that class. Explore H01M
Ranked #16,744 of 49,997 tracked assignees by patent volume - see the full leaderboard. See the ranking
Compare Dongguan Poweramp Technology Limited against Dolby Video Compression, LLC, an assignee filing at a similar volume. Compare portfolios
Innovation Score of 47.9/100 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.