USPTO 2015–2025 USPTO PatentsView Foreign Corporation

Jiangnan University

USPTO PatentsView assignee record - 511 granted patents across 190 technology areas, active 2015–2025. Filing-trend and competitive-moat analysis cross-referenced to USPTO Patent Public Search. Primary class: C12N (MICROORGANISMS OR ENZYMES; COMPOSITIONS THEREOF; PROPAGATING, PRESERVING, OR MAINTAINING MICROORGANISMS; MUTATION OR GENETIC ENGINEERING; CULTURE MEDIA).

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

Explore the portfolio See the ranking

511

Total patents granted

190

CPC technology areas

8.4

Avg claims per patent

+278%

5-year filing velocity

The verdict

Jiangnan holds 511 US patents across 190 technology areas, rank #887 of 50,000 tracked assignees.

#887
of 50,000 US assignees by volume: Top 4%
by Innovation Score (59.9/100): 8.4
avg claims per patent: +278%
filing velocity, last 5 yrs

Portfolio overview

Jiangnan University has been granted 511 US utility patents between 2015 and 2025, placing Jiangnan University at rank #887 across all assignees tracked by PlainPatent. This portfolio spans 190 distinct Cooperative Patent Classification (CPC) subclasses, averaging 8.4 claims per patent with primary concentration in C12N (MICROORGANISMS OR ENZYMES; COMPOSITIONS THEREOF; PROPAGATING, PRESERVING, OR MAINTAINING MICROORGANISMS; MUTATION OR GENETIC ENGINEERING; CULTURE MEDIA). As a Foreign Corporation, Jiangnan University is one of the broader-portfolio assignees in the PatentsView dataset. By volume, Jiangnan sits between Bayer Intellectual Property Gmbh (513 patents, rank #883) and Nuvasive, Inc. (504 patents, rank #891) - the closest US assignees by grant volume. The composite Innovation Score of 59.9/100 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 404 grants, compared with 107 in the 2015–2019 window, a +278% 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. Jiangnan University's 8.4 average claims per patent suggests focused, narrowly drawn claims typical of single-invention filings, while a diversified footprint across 100+ CPC subclasses spreads risk across many technology fronts. Combined with portfolio volume, these signals let analysts, investors, and licensing professionals benchmark Jiangnan University against peers pursuing similar technology classes.

Bayer Intellectua…

513
DISH L L C

512
Emory University

512
Kennametal

512
Nicoventures Trad…

511
Sumitomo Metal Mi…

511
Jiangnan Universi… ◀

511
Entegris

509
Nuvasive

504

What this shows Jiangnan holds 511 patents at rank #887, shown against the 8 assignees closest to it in grant volume rather than the industry's largest filers.

Companies ranked near Jiangnan

By rank, the assignees closest to #887 in granted patent volume.

Leaders in C12N (Microorganisms OR Enzymes)

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

Jiangnan's Innovation Score vs. every tracked assignee

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

60 Top 4% higher than 96% 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 · 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

Jiangnan University patent grants by year, 2015–2025
Year	Patents Granted	Share of Period
2015	6	1.2%
2016	11	2.2%
2017	12	2.3%
2018	28	5.5%
2019	50	9.8%
2020	57	11.2%
2021	70	13.7%
2022	68	13.3%
2023	72	14.1%
2024	82	16.0%
2025	55	10.8%

Which technologies does Jiangnan University patent most?

C12N - MICROORGANISMS OR ENZYMES; COMPOSITIONS THEREOF; PROPAGATING, PRESERVING, OR MAINTAINING MICROORGANISMS; MUTATION OR GENETIC ENGINEERING; CULTURE MEDIA 201

C12P - FERMENTATION OR ENZYME-USING PROCESSES TO SYNTHESISE A DESIRED CHEMICAL COMPOUND OR COMPOSITION OR TO SEPARATE OPTICAL ISOMERS FROM A RACEMIC MIXTURE 143

C12Y - ENZYMES 122

A23L - FOODS, FOODSTUFFS OR NON-ALCOHOLIC BEVERAGES, NOT OTHERWISE PROVIDED FOR; PREPARATION OR TREATMENT THEREOF 82

C12R - INDEXING SCHEME ASSOCIATED WITH SUBCLASSES C12C - C12Q, RELATING TO MICROORGANISMS 77

A61K - PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES 66

A23V - INDEXING SCHEME RELATING TO FOODS, FOODSTUFFS OR NON-ALCOHOLIC BEVERAGES AND LACTIC OR PROPIONIC ACID BACTERIA USED IN FOODSTUFFS OR FOOD PREPARATION 52

C07K - PEPTIDES 49

G01N - INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES 40

A61P - SPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS 35

B01J - CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS 32

C08B - POLYSACCHARIDES; DERIVATIVES THEREOF 27

Y02P - CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS 25

B82Y - SPECIFIC USES OR APPLICATIONS OF NANOSTRUCTURES; MEASUREMENT OR ANALYSIS OF NANOSTRUCTURES; MANUFACTURE OR TREATMENT OF NANOSTRUCTURES 18

C08G - MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS 18

Top 15 of 190 technology areas

Patent Moat Analysis

Portfolio Volume Moderate

Tech Breadth Diversified

Claim Depth Simple

Velocity Accelerating

Where it ranks

Overall rank by patents

#887

Across all tracked assignees

Innovation Score

59.9 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 Jiangnan University hold?

Jiangnan University holds 511 US granted patents filed between 2015 and 2025, spanning 190 technology areas.

What is Jiangnan University's Innovation Score?

Jiangnan University has an Innovation Score of 59.9 out of 100. This composite metric weighs portfolio volume (40%), filing velocity (20%), technology breadth (25%), and claim depth (15%).

What technology areas does Jiangnan University focus on?

Jiangnan University's top technology area is C12N (MICROORGANISMS OR ENZYMES; COMPOSITIONS THEREOF; PROPAGATING, PRESERVING, OR MAINTAINING MICROORGANISMS; MUTATION OR GENETIC ENGINEERING; CULTURE MEDIA) with 201 patents. The company has filed patents in 190 CPC subclasses total.

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

Jiangnan University's recent filing velocity is +278% compared to the prior five-year period. This indicates accelerating innovation.

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

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

How is the Jiangnan 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

Jiangnan's 511 grants land it in the top 4% 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 - Jiangnan ranks #887 of 50,000. Top 50 holders
Most of this portfolio concentrates in C12N - see who else leads that technology area. C12N 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.