Where does Dongguan Hanxu Hardware Plastic Technology Co., Ltd. rank among US patent assignees?

According to USPTO PatentsView (2015–2025 granted utility patents), Dongguan Hanxu Hardware Plastic Technology Co., Ltd. ranks #39,867 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 Hanxu Hardware Plastic Technology Co., Ltd. hold?

Dongguan Hanxu Hardware Plastic Technology Co., Ltd. holds 6 US utility patents granted between 2023 and 2024, spanning 7 technology areas.

What is Dongguan Hanxu Hardware Plastic Technology Co., Ltd.'s Innovation Score?

Dongguan Hanxu Hardware Plastic Technology Co., Ltd. has an Innovation Score of 41.4 out of 100 (top 33% of the corpus). This composite metric weighs portfolio volume (40%), grant velocity (20%), technology breadth (25%), and claim depth (15%).

Is Dongguan Hanxu Hardware Plastic Technology Co., Ltd.'s patent grant rate increasing or decreasing?

Insufficient historical data is available to calculate a velocity trend for Dongguan Hanxu Hardware Plastic Technology Co., Ltd..

What does claim depth mean for Dongguan Hanxu Hardware Plastic Technology Co., Ltd.'s patents?

Dongguan Hanxu Hardware Plastic Technology Co., Ltd.'s patents average 8.8 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.

USPTO 2015–2025 USPTO PatentsView Foreign Corporation

Dongguan Hanxu Hardware Plastic Technology Co., Ltd.

Q: What technology areas does Dongguan Hanxu Hardware Plastic Technology Co., Ltd. focus on?

Dongguan Hanxu Hardware Plastic Technology Co., Ltd.'s top technology area is F28D (Heat-exchange Apparatus, NOT Provided FOR IN Another Subclass, IN Which THE Heat-exchange Media DO NOT Come Into Direct Contact) with 5 patents, ranking #158 of 801 assignees active in that subclass. Grants appear in 7 CPC subclasses total.

Q: How is the Dongguan Hanxu Hardware Plastic Technology Co., Ltd. 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 PatentsView assignee record - 6 granted patents across 7 technology areas, recorded in grant years 2023–2024. 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: F28D (Heat-exchange Apparatus, NOT Provided FOR IN Another Subclass, IN Which THE Heat-exchange Media DO NOT Come Into Direct Contact).

Compiled by PlainPatent · May 15, 2026

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Explore the portfolio See the ranking

The verdict

According to USPTO PatentsView, Dongguan ranks #39,867 of 49,997 tracked US assignees by granted-patent volume, with 6 patents across 7 technology areas.

#39,867
of 49,997 US assignees by volume: Top 33%
by Innovation Score (41.4/100): 8.8
avg claims per patent

USPTO PatentsView assignee plate

Corpus R39867 · Foreign Corporation #39,867 · 6 grants

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

GRANTS-MICRO 6 grants
LOWER-Q #39,867/49,997
PHOTO-FINISH Dolby Intellectual…
CPC-NARROW F28D · 7 areas
INNOV-PAR 41.4/100
CLAIMS-PAR 8.8 claims/avg
TYPE-FRNCORP Foreign Corp
SPAN-YRS 2023–2024 · 2y
BOOK-RICH 9/10 fields

Nearest grant-volume peer: Dolby Intellectual Property Licensing, 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 41.4 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 6.7 pts (16%) Velocity 20.0 pts (48%) Breadth 9.4 pts (23%) Claim depth 5.3 pts (13%)

Qualcomm Incorporated · highest

85
Dongguan Hanxu… · this assignee

41
3D Lighting… · lowest

7

What this shows Dongguan's Innovation Score is 41.4/100 (top 33% 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 8.8 claims/patent is at or below the 10.2 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 Hanxu Hardware Plastic Technology Co., Ltd. is a focused PatentsView assignee: 7 CPC subclasses with 83.3% of grants classified under F28D (Heat-exchange Apparatus, NOT Provided FOR IN Another Subclass, IN Which THE Heat-exchange Media DO NOT Come Into Direct Contact). Peak complete grant year is 2023 (4 grants) versus a trough of 2 in 2024. By volume, Dongguan sits between Dolby Intellectual Property Licensing, LLC and Dongguan Sogoode Computer System Co., Ltd.

Dongguan's three-year grant acceleration

Dongguan Hanxu Hardware Plastic Technology Co., Ltd. shows 6 grants in 2022–2024 against only 0 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 Intellectua…

6
Dong-a Socio Hold…

6
Dong-in Entech

6
Dongguan Goldex C…

6
Dongguan Hongyi W…

6
Dongguan Prestige…

6
Dongguan Shengmin…

6
Dongguan Sogoode…

6
Dongguan Hanxu Ha… ◀

6

What this shows Dongguan holds 6 patents at rank #39,791, 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 #39,791 in granted patent volume.

Leaders in F28D (Heat-exchange Apparatus)

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)

41 Top 33% higher than 67% 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 · 2023–2024

Grants by year

Teal-shaded recent years (2020–present) versus the 2023–2019 baseline. Full figures in the table below.

View data table

Dongguan Hanxu Hardware Plastic Technology Co., Ltd. patent grants by year, 2015–2025
Year	Patents Granted	Share of Period
2023	4	66.7%
2024	2	33.3%

Which technologies does Dongguan Hanxu Hardware Plastic Technology Co., Ltd. patent most?

F28D - Heat-exchange Apparatus, NOT Provided FOR IN Another Subclass, IN Which THE Heat-exchange Media DO NOT Come Into Direct Contact 5

F28F - Details OF Heat-exchange AND Heat-transfer Apparatus, OF General Application 4

H05K - Printed CIRCUITS; Casings OR Constructional Details OF Electric APPARATUS; Manufacture OF Assemblages OF Electrical Components 2

F16L - PIPES; Joints OR Fittings FOR PIPES; Supports FOR Pipes, Cables OR Protective TUBING; Means FOR Thermal Insulation IN General 1

H01L - Semiconductor Devices NOT Covered BY Class H10 1

F01P - Cooling OF Machines OR Engines IN GENERAL; Cooling OF Internal-combustion Engines 1

G06F - Electric Digital Data Processing 1

Top 7 of 7 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 Hanxu Hardware Plastic Technology Co., Ltd.'s patent record in context - here's where to go next.

Dongguan Hanxu Hardware Plastic Technology Co., Ltd.'s lead technology class is F28D (Heat-exchange Apparatus, NOT Provided FOR IN Another Subclass, IN Which THE Heat-exchange Media DO NOT Come Into Direct Contact), 83.3% of its portfolio - see every assignee active in that class. Explore F28D
Ranked #39,867 of 49,997 tracked assignees by patent volume - see the full leaderboard. See the ranking
Compare Dongguan Hanxu Hardware Plastic Technology Co., Ltd. against Dolby Intellectual Property Licensing, LLC, an assignee filing at a similar volume. Compare portfolios
Innovation Score of 41.4/100 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.