Where does Nanchang Hangkong University rank among US patent assignees?

According to USPTO PatentsView (2015–2025 granted utility patents), Nanchang Hangkong University ranks #12,576 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 Hangkong University hold?

Nanchang Hangkong University holds 24 US utility patents granted between 2019 and 2025, spanning 35 technology areas.

What is Nanchang Hangkong University's Innovation Score?

Nanchang Hangkong University has an Innovation Score of 45.0 out of 100 (top 24% 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 Hangkong University focus on?

Nanchang Hangkong University's top technology area is C02F (Treatment OF Water, Waste Water, Sewage, OR Sludge) with 6 patents, ranking #245 of 1,366 assignees active in that subclass. Grants appear in 35 CPC subclasses total.

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

Nanchang Hangkong University's recent grant velocity is +400% 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 Hangkong University's patents?

Nanchang Hangkong University's patents average 7.7 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 Hangkong 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 Hangkong University

USPTO PatentsView assignee record - 24 granted patents across 35 technology areas, recorded in grant years 2019–2025. 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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The verdict

According to USPTO PatentsView, Nanchang ranks #12,576 of 49,997 tracked US assignees by granted-patent volume, with 24 patents across 35 technology areas.

#12,576
of 49,997 US assignees by volume: Top 24%
by Innovation Score (45.0/100): 7.7
avg claims per patent: +400%
grant velocity, last 5 yrs

USPTO PatentsView assignee plate

Corpus R12576 · Foreign Corporation #12,576 · 24 grants

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

GRANTS-SMALL 24 grants
MID-PACK #12,576/49,997
PHOTO-FINISH Nanchang Coolpad…
CPC-FOCUS C02F · 35 areas
INNOV-PAR 45.0/100
CLAIMS-SPARSE 7.7 claims/avg
TYPE-FRNCORP Foreign Corp
VEL-SURGE +400% vel
BOOK-FULL 10/10 fields

Nearest grant-volume peer: Nanchang Coolpad Intelligent Technology Company Limited (±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 45.0 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 11.1 pts (25%) Velocity 8.3 pts (18%) Breadth 20.9 pts (47%) Claim depth 4.6 pts (10%)

Qualcomm Incorporated · highest

85
Nanchang Hangkong… · this assignee

45
3D Lighting… · lowest

7

What this shows Nanchang's Innovation Score is 45.0/100 (top 24% 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 7.7 claims/patent is at or below the 13.6 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 Hangkong University is a focused PatentsView assignee: 35 CPC subclasses with 25% of grants classified under C02F (Treatment OF Water, Waste Water, Sewage, OR Sludge). Peak complete grant year is 2021 (5 grants) versus a trough of 1 in 2022. By volume, Nanchang sits between Nostalgia Products LLC and Nemak, S.A.B. de C.V..

Nanchang's three-year grant acceleration

Nanchang Hangkong University shows 10 grants in 2022–2024 against only 8 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.

Nostalgia Products

24
NOV Downhole Eura…

24
NS Materials

24
Nanchang Coolpad…

24
Natus Medical Inc…

24
Navitar Industries

24
Neonc

24
Nemak B de C V

24
Nanchang Hangkong… ◀

24

What this shows Nanchang holds 24 patents at rank #12,590, 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 #12,590 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)

45 Top 24% higher than 76% 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 · 2019–2025

Grants by year

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

View data table

Nanchang Hangkong University patent grants by year, 2015–2025
Year	Patents Granted	Share of Period
2019	3	12.5%
2021	5	20.8%
2022	1	4.2%
2023	4	16.7%
2024	5	20.8%
2025partial year	6	25.0%

Which technologies does Nanchang Hangkong University patent most?

C02F - Treatment OF Water, Waste Water, Sewage, OR Sludge 6

B01J - Chemical OR Physical Processes, e.g. Catalysis OR Colloid CHEMISTRY; Their Relevant Apparatus 5

Y02P - Climate Change Mitigation Technologies IN THE Production OR Processing OF Goods 4

G01N - Investigating OR Analysing Materials BY Determining Their Chemical OR Physical Properties 4

B23K - Soldering OR UNSOLDERING; WELDING; Cladding OR Plating BY Soldering OR WELDING; Cutting BY Applying Heat Locally, e.g. Flame CUTTING; Working BY Laser Beam 4

G02B - Optical Elements, Systems OR Apparatus 2

G06T - Image Data Processing OR Generation, IN General 2

B21D - Working OR Processing OF Sheet Metal OR Metal Tubes, Rods OR Profiles Without Essentially Removing MATERIAL; Punching Metal 2

Y02W - Climate Change Mitigation Technologies Related TO Wastewater Treatment OR Waste Management 2

C01G - Compounds Containing Metals NOT Covered BY Subclasses C01d OR C01f 1

C01P - Indexing Scheme Relating TO Structural AND Physical Aspects OF Solid Inorganic Compounds 1

G03F - Photomechanical Production OF Textured OR Patterned Surfaces, e.g. FOR Printing, FOR Processing OF Semiconductor DEVICES; Materials THEREFOR; Originals THEREFOR; Apparatus Specially Adapted THEREFOR; 1

C08G - Macromolecular Compounds Obtained Otherwise Than BY Reactions Only Involving Unsaturated Carbon-to-carbon Bonds 1

C22B - Production AND Refining OF Metals ; Pretreatment OF RAW Materials 1

B24B - Machines, Devices, OR Processes FOR Grinding OR Polishing ; Dressing OR Conditioning OF Abrading SURFACES; Feeding OF Grinding, Polishing, OR Lapping Agents 1

Top 15 of 35 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 Hangkong University's patent record in context - here's where to go next.

Nanchang Hangkong University's lead technology class is C02F (Treatment OF Water, Waste Water, Sewage, OR Sludge), 25% of its portfolio - see every assignee active in that class. Explore C02F
Ranked #12,576 of 49,997 tracked assignees by patent volume - see the full leaderboard. See the ranking
Compare Nanchang Hangkong University against Nostalgia Products LLC, an assignee filing at a similar volume. Compare portfolios
Innovation Score of 45.0/100 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.