Where does Nanchang University rank among US patent assignees?

According to USPTO PatentsView (2015–2025 granted utility patents), Nanchang University ranks #26,924 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 Nanchang University hold?

Nanchang University holds 10 US utility patents granted 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 (top 12% of the corpus). This composite metric weighs portfolio volume (40%), grant 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, ranking #502 of 1,366 assignees active in that subclass. Grants appear in 25 CPC subclasses total.

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

Nanchang University's recent grant velocity is +250% compared to the prior five-year period (grant years, not application filing dates). This indicates accelerating grant output.

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

Nanchang University's patents average 8.4 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 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.

USPTO 2015–2025 USPTO PatentsView Foreign Corporation

Nanchang University

USPTO PatentsView assignee record - 10 granted patents across 25 technology areas, recorded in grant years 2018–2025. 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: C02F (Treatment OF Water, Waste Water, Sewage, OR Sludge).

Compiled by PlainPatent · May 15, 2026

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Explore the portfolio See the ranking

The verdict

According to USPTO PatentsView, Nanchang ranks #26,924 of 49,997 tracked US assignees by granted-patent volume, with 10 patents across 25 technology areas.

#26,924
of 49,997 US assignees by volume: Top 12%
by Innovation Score (51.0/100): 8.4
avg claims per patent: +250%
grant velocity, last 5 yrs

USPTO PatentsView assignee plate

Corpus R26924 · Foreign Corporation #26,924 · 10 grants

GRANTS-MICRO · MID-PACK · PHOTO-FINISH · CPC-FOCUS · INNOV-PAR · CLAIMS-PAR · TYPE-FRNCORP · VEL-SURGE · BOOK-FULL

GRANTS-MICRO 10 grants
MID-PACK #26,924/49,997
PHOTO-FINISH Nanjing Silergy…
CPC-FOCUS C02F · 25 areas
INNOV-PAR 51.0/100
CLAIMS-PAR 8.4 claims/avg
TYPE-FRNCORP Foreign Corp
VEL-SURGE +250% vel
BOOK-FULL 10/10 fields

Nearest grant-volume peer: Nanjing Silergy Micro (HK) Co., Ltd. (±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 Nanchang’s 51.0 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 8.3 pts (16%) Velocity 20.0 pts (39%) Breadth 17.7 pts (35%) Claim depth 5.0 pts (10%)

Qualcomm Incorporated · highest

85
Nanchang University · this assignee

51
3D Lighting… · lowest

7

What this shows Nanchang's Innovation Score is 51.0/100 (top 12% 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 Nanchang?

Each dot is one of Nanchang’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). Nanchang’s own 8.4 claims/patent is at or below the 12.4 median for these volume peers. Volume here does not track with deeper claims; several lower-volume peers claim more thoroughly per patent.

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

Where Nanchang's grants concentrate

Nanchang University is a focused PatentsView assignee: 25 CPC subclasses with 30% of grants classified under C02F (Treatment OF Water, Waste Water, Sewage, OR Sludge). Peak complete grant year is 2024 (4 grants) versus a trough of 1 in 2018. By volume, Nanchang sits between Nucleix Ltd. and NantStudios, LLC.

Nanchang's three-year grant acceleration

Nanchang University shows 6 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.

Nucleix

10
Nuplex Resins B V

10
Nurvv

10
NVH Korea

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, grant velocity, technology breadth, and claim depth (0–100)

51 Top 12% higher than 88% 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 · 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%
2025partial year	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

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

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

Nanchang University's lead technology class is C02F (Treatment OF Water, Waste Water, Sewage, OR Sludge), 30% of its portfolio - see every assignee active in that class. Explore C02F
Ranked #26,924 of 49,997 tracked assignees by patent volume - see the full leaderboard. See the ranking
Compare Nanchang University against Nucleix Ltd., an assignee filing at a similar volume. Compare portfolios
Innovation Score of 51.0/100 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.