Where does Nanjing Tech University rank among US patent assignees?

According to USPTO PatentsView (2015–2025 granted utility patents), Nanjing Tech University ranks #4,017 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 Nanjing Tech University hold?

Nanjing Tech University holds 90 US utility patents granted between 2015 and 2025, spanning 92 technology areas.

What is Nanjing Tech University's Innovation Score?

Nanjing Tech University has an Innovation Score of 58.7 out of 100 (top 4% of the corpus). This composite metric weighs portfolio volume (40%), grant velocity (20%), technology breadth (25%), and claim depth (15%).

What technology areas does Nanjing Tech University focus on?

Nanjing Tech University's top technology area is B01D (Separation) with 19 patents. Grants appear in 92 CPC subclasses total.

Is Nanjing Tech University's patent grant rate increasing or decreasing?

Nanjing Tech University's recent grant velocity is +96% compared to the prior five-year period (grant years, not application filing dates). This indicates accelerating grant output.

What does claim depth mean for Nanjing Tech University's patents?

Nanjing Tech University's patents average 9.4 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 Nanjing Tech 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 Government

Nanjing Tech University

USPTO PatentsView assignee record - 90 granted patents across 92 technology areas, recorded in grant years 2015–2025. 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: B01D (Separation).

Compiled by PlainPatent · May 15, 2026

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The verdict

According to USPTO PatentsView, Nanjing ranks #4,017 of 49,997 tracked US assignees by granted-patent volume, with 90 patents across 92 technology areas.

#4,017
of 49,997 US assignees by volume: Top 4%
by Innovation Score (58.7/100): 9.4
avg claims per patent: +96%
grant velocity, last 5 yrs

USPTO PatentsView assignee plate

Corpus R4017 · Foreign Government #4,017 · 90 grants

GRANTS-SMALL · TOP-DECILE · PHOTO-FINISH · CPC-WIDE · INNOV-PAR · CLAIMS-PAR · TYPE-FRNGOV · VEL-SURGE · BOOK-FULL

GRANTS-SMALL 90 grants
TOP-DECILE #4,017/49,997
PHOTO-FINISH McKesson
CPC-WIDE B01D · 92 areas
INNOV-PAR 58.7/100
CLAIMS-PAR 9.4 claims/avg
TYPE-FRNGOV Foreign Gov
VEL-SURGE +96% vel
BOOK-FULL 10/10 fields

Nearest grant-volume peer: McKesson Corporation (±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.

Qualcomm Incorporated · highest

85
Deepx · near

59
Nippon Sheet Glass · near

59
Voith Patent · near

59
Cleerly · near

59
Nanjing Tech… · this assignee

59
3D Lighting… · lowest

7

What this shows Nanjing's Innovation Score is 58.7/100 (top 4% 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.

How Nanjing's grant cadence moved

Between 2020–2024, Nanjing Tech University received 53 grants versus 27 in 2015–2019 (+96% equal-window velocity, above median growth). Across complete PatentsView years, output peaked in 2024 at 18 grants and bottomed in 2015 at 1. Lead class B01D accounts for 21.1% of the portfolio across 92 subclasses. Volume neighbours: Medacta International SA (#4,013) and Quanta Associates, L.P. (#4,021).

Nanjing's three-year grant acceleration

From 2019–2021 to 2022–2024, Nanjing Tech University moved from 22 to 41 grants (1.86x the prior three-year total, a multiple, not a CAGR). See the growth leaderboard.

Medacta Internati…

90
Mirise

90
Mckesson

90
Musco

90
NKT Photonics A/S

90
Nuro

90
Pierburg Pump Tec…

90
Quanta Associates

90
Nanjing Tech Univ… ◀

90

What this shows Nanjing holds 90 patents at rank #4,017, shown against the 8 assignees closest to it in grant volume rather than the industry's largest filers.

Companies ranked near Nanjing

By rank, the assignees closest to #4,017 in granted patent volume.

Leaders in B01D (Separation)

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

Assignees with similar portfolio profiles

Two PlainPatent-derived peer sets for Nanjing, neither rank-band nor same-CPC leaders (those blocks stay above).

Similar innovation score

Nearest assignees by Innovation Score (59 here).

Cleerly, Inc. 59 Deepx Co., Ltd. 59 Nippon Sheet Glass Company, Limited 59 Voith Patent GmbH 59

Similar claim depth

Nearest assignees by average claims per patent (9.4 here).

Pukyong National University Industry-University Cooperation Foundation 9.4 avg Fujikura Ltd. 9.4 avg Industry Foundation OF Chonnam National University 9.4 avg Toyoda Gosei Co., Ltd. 9.4 avg

Nanjing's Innovation Score vs. every tracked assignee

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

59 Top 4% higher than 96% 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 · 2015–2025

Grants by year

Teal-shaded recent years (2020–present) versus the 2015–2019 baseline. Full figures in the table below.

View data table

Nanjing Tech University patent grants by year, 2015–2025
Year	Patents Granted	Share of Period
2015	1	1.1%
2016	1	1.1%
2017	7	7.8%
2018	8	8.9%
2019	10	11.1%
2020	4	4.4%
2021	8	8.9%
2022	8	8.9%
2023	15	16.7%
2024	18	20.0%
2025partial year	10	11.1%

Which technologies does Nanjing Tech University patent most?

B01D - Separation 19

B01J - Chemical OR Physical Processes, e.g. Catalysis OR Colloid CHEMISTRY; Their Relevant Apparatus 15

C08G - Macromolecular Compounds Obtained Otherwise Than BY Reactions Only Involving Unsaturated Carbon-to-carbon Bonds 13

Y02P - Climate Change Mitigation Technologies IN THE Production OR Processing OF Goods 12

Y02E - Reduction OF Greenhouse GAS [GHG] Emissions, Related TO Energy Generation, Transmission OR Distribution 11

C08L - Compositions OF Macromolecular Compounds 7

C04B - Lime, MAGNESIA; SLAG; CEMENTS; Compositions Thereof, e.g. Mortars, Concrete OR Like Building MATERIALS; Artificial Stone ; Ceramics ; REFRACTORIES; Treatment OF Natural Stone 7

C12P - Fermentation OR Enzyme-using Processes TO Synthesise A Desired Chemical Compound OR Composition OR TO Separate Optical Isomers From A Racemic Mixture 7

Y02C - Capture, Storage, Sequestration OR Disposal OF Greenhouse Gases [GHG] 6

F28D - Heat-exchange Apparatus, NOT Provided FOR IN Another Subclass, IN Which THE Heat-exchange Media DO NOT Come Into Direct Contact 6

C07D - Heterocyclic Compounds 5

C07F - Acyclic, Carbocyclic OR Heterocyclic Compounds Containing Elements Other Than Carbon, Hydrogen, Halogen, Oxygen, Nitrogen, Sulfur, Selenium OR Tellurium 5

C12Y - Enzymes 5

C12N - Microorganisms OR ENZYMES; Compositions THEREOF; Propagating, Preserving, OR Maintaining MICROORGANISMS; Mutation OR Genetic ENGINEERING; Culture Media 5

C08J - WORKING-UP; General Processes OF COMPOUNDING; After-treatment NOT Covered BY Subclasses C08b, C08c, C08f, C08g or C08h 5

Top 15 of 92 technology areas

Where it ranks

Overall rank by patents

#4,017

of 49,997 tracked assignees

Innovation Score

58.7 out of 100

View all rankings →

Data Source

USPTO PatentsView, US granted patents 2015–2025

How is Innovation Score calculated?

What to do with this data

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

Nanjing Tech University's lead technology class is B01D (Separation), 21.1% of its portfolio - see every assignee active in that class. Explore B01D
Ranked #4,017 of 49,997 tracked assignees by patent volume - see the full leaderboard. See the ranking
Compare Nanjing Tech University against Medacta International SA, an assignee filing at a similar volume. Compare portfolios
Innovation Score of 58.7/100 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.