Where does Dalian Polytechnic University rank among US patent assignees?

According to USPTO PatentsView (2015–2025 granted utility patents), Dalian Polytechnic University ranks #46,028 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 Dalian Polytechnic University hold?

Dalian Polytechnic University holds 5 US utility patents granted between 2020 and 2023, spanning 9 technology areas.

What is Dalian Polytechnic University's Innovation Score?

Dalian Polytechnic University has an Innovation Score of 22.8 out of 100 (11th percentile of the corpus). This composite metric weighs portfolio volume (40%), grant velocity (20%), technology breadth (25%), and claim depth (15%).

Is Dalian Polytechnic University's patent grant rate increasing or decreasing?

Insufficient historical data is available to calculate a velocity trend for Dalian Polytechnic University.

What does claim depth mean for Dalian Polytechnic University's patents?

Dalian Polytechnic University's patents average 7.2 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 Dalian Polytechnic University 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

Dalian Polytechnic University

Q: What technology areas does Dalian Polytechnic University focus on?

Dalian Polytechnic University's top technology area is D06P (Dyeing OR Printing TEXTILES; Dyeing Leather, Furs OR Solid Macromolecular Substances IN ANY Form) with 3 patents, ranking #31 of 118 assignees active in that subclass. Grants appear in 9 CPC subclasses total.

USPTO PatentsView assignee record - 5 granted patents across 9 technology areas, recorded in grant years 2020–2023. 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: D06P (Dyeing OR Printing TEXTILES; Dyeing Leather, Furs OR Solid Macromolecular Substances IN ANY Form).

Compiled by PlainPatent · May 15, 2026

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The verdict

According to USPTO PatentsView, Dalian ranks #46,028 of 49,997 tracked US assignees by granted-patent volume, with 5 patents across 9 technology areas.

#46,028
of 49,997 US assignees by volume: 11th percentile
by Innovation Score (22.8/100): 7.2
avg claims per patent

USPTO PatentsView assignee plate

Corpus R46028 · Foreign Corporation #46,028 · 5 grants

GRANTS-MICRO · BOTTOM-DECILE · PHOTO-FINISH · CPC-NARROW · INNOV-THIN · CLAIMS-SPARSE · TYPE-FRNCORP · SPAN-YRS · BOOK-RICH

GRANTS-MICRO 5 grants
BOTTOM-DECILE #46,028/49,997
PHOTO-FINISH Daklapack Europe B V
CPC-NARROW D06P · 9 areas
INNOV-THIN 22.8/100
CLAIMS-SPARSE 7.2 claims/avg
TYPE-FRNCORP Foreign Corp
SPAN-YRS 2020–2023 · 4y
BOOK-RICH 9/10 fields

Nearest grant-volume peer: Daklapack Europe B.V. (±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 Dalian’s 22.8 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 6.2 pts (27%) Velocity 1.7 pts (7%) Breadth 10.6 pts (46%) Claim depth 4.3 pts (19%)

Qualcomm Incorporated · highest

85
Dalian Polytechnic… · this assignee

23
3D Lighting… · lowest

7

What this shows Dalian's Innovation Score is 22.8/100 (11th percentile 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 Dalian?

Each dot is one of Dalian’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). Dalian’s own 7.2 claims/patent is at or below the 7.2 median for these volume peers. Volume here does not track with deeper claims; several lower-volume peers claim more thoroughly per patent.

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

Where Dalian's grants concentrate

Dalian Polytechnic University is a focused PatentsView assignee: 9 CPC subclasses with 60% of grants classified under D06P (Dyeing OR Printing TEXTILES; Dyeing Leather, Furs OR Solid Macromolecular Substances IN ANY Form). Peak complete grant year is 2020 (4 grants) versus a trough of 1 in 2023. By volume, Dalian sits between Daklapack Europe B.V. and DAO Health.

Dalian's three-year grant acceleration

Dalian Polytechnic University shows 1 grants in 2022–2024 against only 4 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.

Daklapack Europe…

5
Dakota Group S DI…

5
Dale Holdings (PT…

5
Dalian Czur Tech

5
Danfoss Semco A/S

5
Dansk Mink Papir…

5
Danyang Weisheng…

5
DAO Health

5
Dalian Polytechni… ◀

5

What this shows Dalian holds 5 patents at rank #46,028, shown against the 8 assignees closest to it in grant volume rather than the industry's largest filers.

Companies ranked near Dalian

By rank, the assignees closest to #46,028 in granted patent volume.

Leaders in D06P (Dyeing OR Printing Textiles)

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

Dalian's Innovation Score vs. every tracked assignee

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

23 11th percentile higher than 11% 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 · 2020–2023

Grants by year

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

View data table

Dalian Polytechnic University patent grants by year, 2015–2025
Year	Patents Granted	Share of Period
2020	4	80.0%
2023	1	20.0%

Which technologies does Dalian Polytechnic University patent most?

D06P - Dyeing OR Printing TEXTILES; Dyeing Leather, Furs OR Solid Macromolecular Substances IN ANY Form 3

D06B - Treating Textile Materials Using Liquids, Gases OR Vapours 3

Y02P - Climate Change Mitigation Technologies IN THE Production OR Processing OF Goods 3

D06L - Dry-cleaning, Washing OR Bleaching Fibres, Filaments, Threads, Yarns, Fabrics, Feathers OR Made-up Fibrous GOODS; Bleaching Leather OR Furs 1

D10B - Indexing Scheme Associated With Sublasses OF Section D, Relating TO Textiles 1

B01D - Separation 1

C07C - Acyclic OR Carbocyclic Compounds 1

C09B - Organic Dyes OR Closely-related Compounds FOR Producing Dyes ; , e.g. PIGMENTS; MORDANTS; Lakes 1

A47J - Kitchen EQUIPMENT; Coffee MILLS; Spice MILLS; Apparatus FOR Making Beverages 1

Top 9 of 9 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

Dalian Polytechnic University's patent record in context - here's where to go next.

Dalian Polytechnic University's lead technology class is D06P (Dyeing OR Printing TEXTILES; Dyeing Leather, Furs OR Solid Macromolecular Substances IN ANY Form), 60% of its portfolio - see every assignee active in that class. Explore D06P
Ranked #46,028 of 49,997 tracked assignees by patent volume - see the full leaderboard. See the ranking
Compare Dalian Polytechnic University against Daklapack Europe B.V., an assignee filing at a similar volume. Compare portfolios
Innovation Score of 22.8/100 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.