USPTO 2015–2025 USPTO PatentsView Foreign Corporation

Donghua University

USPTO PatentsView assignee record - 13 granted patents across 28 technology areas, active 2016–2025. Filing-trend and competitive-moat analysis cross-referenced to USPTO Patent Public Search. Primary class: D10B (INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES).

Compiled byPlainPatent Editorial, US Patent Intelligence Editorial Team · May 15, 2026

Explore the portfolio See the ranking

Total patents granted

CPC technology areas

8.1

Avg claims per patent

+125%

5-year filing velocity

The verdict

Donghua holds 13 US patents across 28 technology areas, rank #21,000 of 50,000 tracked assignees.

#21,000
of 50,000 US assignees by volume: Top 10%
by Innovation Score (52.7/100): 8.1
avg claims per patent: +125%
filing velocity, last 5 yrs

Portfolio overview

Donghua University has been granted 13 US utility patents between 2016 and 2025, placing Donghua University at rank #21,000 across all assignees tracked by PlainPatent. This portfolio spans 28 distinct Cooperative Patent Classification (CPC) subclasses, averaging 8.1 claims per patent with primary concentration in D10B (INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES). As a Foreign Corporation, Donghua University is one of the more focused assignees in the PatentsView dataset. By volume, Donghua sits between Discord Inc. (13 patents, rank #20,996) and DS Fashion Group (13 patents, rank #21,004) - the closest US assignees by grant volume. The composite Innovation Score of 52.7/100 blends portfolio volume, filing velocity, technology breadth, and claim depth into a single comparable measure drawn directly from USPTO PatentsView records.

Filing cadence tells the strategic story. Between 2020 and 2025 the company received 9 grants, compared with 4 in the 2015–2019 window, a +125% shift in five-year velocity. An acceleration of this magnitude signals aggressive R&D investment and expanding technical ambition. The Foreign Corporation classification further shapes interpretation, since corporate, government, and individual filers pursue patents for materially different reasons.

Claim depth and technology breadth together indicate competitive posture. Donghua University's 8.1 average claims per patent suggests focused, narrowly drawn claims typical of single-invention filings, while a multi-domain presence across 28 subclasses balances depth with breadth. Combined with portfolio volume, these signals let analysts, investors, and licensing professionals benchmark Donghua University against peers pursuing similar technology classes.

Discord

13
Doben

13
Dolce & Gabbana S…

13
Dongguan Suntech

13
DR Schneider Kuns…

13
Dreamus

13
DS Biopharma

13
DS Fashion Group

13
Donghua University ◀

13

What this shows Donghua holds 13 patents at rank #21,000, shown against the 8 assignees closest to it in grant volume rather than the industry's largest filers.

Companies ranked near Donghua

By rank, the assignees closest to #21,000 in granted patent volume.

Leaders in D10B (Indexing Scheme Associated WITH Sublasses OF Section D)

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

Donghua's Innovation Score vs. every tracked assignee

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

53 Top 10% higher than 90% of 50,000 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

Donghua University patent grants by year, 2015–2025
Year	Patents Granted	Share of Period
2016	3	23.1%
2017	1	7.7%
2021	2	15.4%
2022	2	15.4%
2023	1	7.7%
2024	3	23.1%
2025	1	7.7%

Which technologies does Donghua University patent most?

D10B - INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES 8

D01F - CHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS; APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBON FILAMENTS 7

D01D - MECHANICAL METHODS OR APPARATUS IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS 7

B05D - PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL 4

D02J - FINISHING OR DRESSING OF FILAMENTS, YARNS, THREADS, CORDS, ROPES OR THE LIKE 4

D06M - TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS 3

D06P - DYEING OR PRINTING TEXTILES; DYEING LEATHER, FURS OR SOLID MACROMOLECULAR SUBSTANCES IN ANY FORM 3

C08G - MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS 2

C09D - COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR 2

D03D - WOVEN FABRICS; METHODS OF WEAVING; LOOMS 2

C08K - Use of inorganic or non-macromolecular organic substances as compounding ingredients 1

A01N - PRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTS THEREOF ; BIOCIDES, e.g. AS DISINFECTANTS, AS PESTICIDES OR AS HERBICIDES ; PEST REPELLANTS OR ATTRACTANTS; PLANT GROWTH REGULATORS 1

A01P - BIOCIDAL, PEST REPELLANT, PEST ATTRACTANT OR PLANT GROWTH REGULATORY ACTIVITY OF CHEMICAL COMPOUNDS OR PREPARATIONS 1

B41M - PRINTING, DUPLICATING, MARKING, OR COPYING PROCESSES; COLOUR PRINTING, 1

G06F - ELECTRIC DIGITAL DATA PROCESSING 1

Top 15 of 28 technology areas

Patent Moat Analysis

Portfolio Volume Light

Tech Breadth Multi-domain

Claim Depth Simple

Velocity Accelerating

Where it ranks

Overall rank by patents

#21,000

Across all tracked assignees

Innovation Score

52.7 out of 100

View all rankings →

Data Source

USPTO PatentsView, US granted patents 2015–2025

How is Innovation Score calculated?

Frequently Asked Questions

How many patents does Donghua University hold?

Donghua University holds 13 US granted patents filed between 2016 and 2025, spanning 28 technology areas.

What is Donghua University's Innovation Score?

Donghua University has an Innovation Score of 52.7 out of 100. This composite metric weighs portfolio volume (40%), filing velocity (20%), technology breadth (25%), and claim depth (15%).

What technology areas does Donghua University focus on?

Donghua University's top technology area is D10B (INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES) with 8 patents. The company has filed patents in 28 CPC subclasses total.

Is Donghua University's patent filing rate increasing or decreasing?

Donghua University's recent filing velocity is +125% compared to the prior five-year period. This indicates accelerating innovation.

What does claim depth mean for Donghua University's patents?

Donghua University's patents average 8.1 claims each. This is relatively simple claim structure, typical for focused inventions.

How is the Donghua 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.

How to use this portfolio

Donghua's 13 grants land it in the top 10% by Innovation Score, but volume alone doesn't tell you where the strength sits.

Read that count against the largest US assignees before treating it as dominance - Donghua ranks #21,000 of 50,000. Top 50 holders
Most of this portfolio concentrates in D10B - see who else leads that technology area. D10B leaders
Check what the four-part Innovation Score actually rewards before comparing it to another company. How the score works

Patent counts and the Innovation Score measure patenting activity, not commercial success or the legal strength of any patent. Many patents are filed defensively. Verify the status of an individual patent against official USPTO records.

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

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 byPlainPatent Editorial, US Patent Intelligence Editorial Team · 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.