USPTO 2015–2025 USPTO PatentsView Foreign Corporation

Nanchang University

USPTO PatentsView assignee record - 10 granted patents across 25 technology areas, active 2018–2025. Filing-trend and competitive-moat analysis cross-referenced to USPTO Patent Public Search. Primary class: C02F (TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE).

Compiled byPlainPatent Editorial, US Patent Intelligence Editorial Team

Explore the portfolio See the ranking

Total patents granted

CPC technology areas

8.4

Avg claims per patent

+300%

5-year filing velocity

The verdict

Nanchang holds 10 US patents across 25 technology areas, rank #26,957 of 50,000 tracked assignees.

#26,957
of 50,000 US assignees by volume: Top 12%
by Innovation Score (51.0/100): 8.4
avg claims per patent: +300%
filing velocity, last 5 yrs

Portfolio overview

Nanchang University has been granted 10 US utility patents between 2018 and 2025, placing Nanchang University at rank #26,957 across all assignees tracked by PlainPatent. This portfolio spans 25 distinct Cooperative Patent Classification (CPC) subclasses, averaging 8.4 claims per patent with primary concentration in C02F (TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE). As a Foreign Corporation, Nanchang University is one of the more focused assignees in the PatentsView dataset. By volume, Nanchang sits between Nucleix Ltd. (10 patents, rank #26,953) and Nantstudios, Llc (10 patents, rank #26,961) - the closest US assignees by grant volume. The composite Innovation Score of 51.0/100 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 8 grants, compared with 2 in the 2015–2019 window, a +300% 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. Nanchang University's 8.4 average claims per patent suggests focused, narrowly drawn claims typical of single-invention filings, while a multi-domain presence across 25 subclasses balances depth with breadth. Combined with portfolio volume, these signals let analysts, investors, and licensing professionals benchmark Nanchang University against peers pursuing similar technology classes.

Nucleix

10
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10
Nurvv

10
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10
Nanjing Silergy M…

10
Nanomix

10
Nanotheta

10
Nantstudios

10
Nanchang Universi… ◀

10

What this shows Nanchang holds 10 patents at rank #26,957, shown against the 8 assignees closest to it in grant volume rather than the industry's largest filers.

Companies ranked near Nanchang

By rank, the assignees closest to #26,957 in granted patent volume.

Leaders in C02F (Treatment OF Water)

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

Nanchang's Innovation Score vs. every tracked assignee

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

51 Top 12% higher than 88% 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 · 2018–2025

Grants by year

Teal-shaded recent years (2020–present) versus the 2018–2019 baseline. Full figures in the table below.

View data table

Nanchang University patent grants by year, 2015–2025
Year	Patents Granted	Share of Period
2018	1	10.0%
2019	1	10.0%
2020	1	10.0%
2023	2	20.0%
2024	4	40.0%
2025	1	10.0%

Which technologies does Nanchang University patent most?

C02F - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE 3

H05H - PLASMA TECHNIQUE ; PRODUCTION OF ACCELERATED ELECTRICALLY-CHARGED PARTICLES OR OF NEUTRONS; PRODUCTION OR ACCELERATION OF NEUTRAL MOLECULAR OR ATOMIC BEAMS 2

C12N - MICROORGANISMS OR ENZYMES; COMPOSITIONS THEREOF; PROPAGATING, PRESERVING, OR MAINTAINING MICROORGANISMS; MUTATION OR GENETIC ENGINEERING; CULTURE MEDIA 1

C12Q - MEASURING OR TESTING PROCESSES INVOLVING ENZYMES, NUCLEIC ACIDS OR MICROORGANISMS ; COMPOSITIONS OR TEST PAPERS THEREFOR; PROCESSES OF PREPARING SUCH COMPOSITIONS; CONDITION-RESPONSIVE CONTROL IN MICROBIOLOGICAL OR ENZYMOLOGICAL PROCESSES 1

C07K - PEPTIDES 1

Y02E - REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION 1

H01J - ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS 1

B65F - GATHERING OR REMOVAL OF DOMESTIC OR LIKE REFUSE 1

A23B - PRESERVATION OF FOODS, FOODSTUFFS OR NON-ALCOHOLIC BEVERAGES; CHEMICAL RIPENING OF FRUIT OR VEGETABLES 1

A23L - FOODS, FOODSTUFFS OR NON-ALCOHOLIC BEVERAGES, NOT OTHERWISE PROVIDED FOR; PREPARATION OR TREATMENT THEREOF 1

A61P - SPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS 1

A61K - PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES 1

A23V - INDEXING SCHEME RELATING TO FOODS, FOODSTUFFS OR NON-ALCOHOLIC BEVERAGES AND LACTIC OR PROPIONIC ACID BACTERIA USED IN FOODSTUFFS OR FOOD PREPARATION 1

B01L - CHEMICAL OR PHYSICAL LABORATORY APPARATUS FOR GENERAL USE 1

Y02A - TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE 1

Top 15 of 25 technology areas

Patent Moat Analysis

Portfolio Volume Light

Tech Breadth Multi-domain

Claim Depth Simple

Velocity Accelerating

Where it ranks

Overall rank by patents

#26,957

Across all tracked assignees

Innovation Score

51.0 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 Nanchang University hold?

Nanchang University holds 10 US granted patents filed between 2018 and 2025, spanning 25 technology areas.

What is Nanchang University's Innovation Score?

Nanchang University has an Innovation Score of 51.0 out of 100. This composite metric weighs portfolio volume (40%), filing velocity (20%), technology breadth (25%), and claim depth (15%).

What technology areas does Nanchang University focus on?

Nanchang University's top technology area is C02F (TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE) with 3 patents. The company has filed patents in 25 CPC subclasses total.

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

Nanchang University's recent filing velocity is +300% compared to the prior five-year period. This indicates accelerating innovation.

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

Nanchang University's patents average 8.4 claims each. This is relatively simple claim structure, typical for focused inventions.

How is the Nanchang 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

Nanchang's 10 grants land it in the top 12% 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 - Nanchang ranks #26,957 of 50,000. Top 50 holders
Most of this portfolio concentrates in C02F - see who else leads that technology area. C02F 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

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.