Where does Chonnam National University Hospital rank among US patent assignees?

According to USPTO PatentsView (2015–2025 granted utility patents), Chonnam National University Hospital ranks #17,559 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 Chonnam National University Hospital hold?

Chonnam National University Hospital holds 16 US utility patents granted between 2016 and 2023, spanning 10 technology areas.

What is Chonnam National University Hospital's Innovation Score?

Chonnam National University Hospital has an Innovation Score of 25.2 out of 100 (17th percentile of the corpus). This composite metric weighs portfolio volume (40%), grant velocity (20%), technology breadth (25%), and claim depth (15%).

What technology areas does Chonnam National University Hospital focus on?

Chonnam National University Hospital's top technology area is A61K (Preparations FOR Medical, Dental OR Toiletry Purposes) with 9 patents, ranking #2,395 of 7,163 assignees active in that subclass. Grants appear in 10 CPC subclasses total.

Is Chonnam National University Hospital's patent grant rate increasing or decreasing?

Chonnam National University Hospital's recent grant velocity is -77% compared to the prior five-year period (grant years, not application filing dates). Grant activity has slowed relative to earlier years.

What does claim depth mean for Chonnam National University Hospital's patents?

Chonnam National University Hospital's patents average 5.3 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 Chonnam National University Hospital 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

Chonnam National University Hospital

USPTO PatentsView assignee record - 16 granted patents across 10 technology areas, recorded in grant years 2016–2023. 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: A61K (Preparations FOR Medical, Dental OR Toiletry Purposes).

Compiled by PlainPatent · May 15, 2026

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The verdict

According to USPTO PatentsView, Chonnam ranks #17,559 of 49,997 tracked US assignees by granted-patent volume, with 16 patents across 10 technology areas.

#17,559
of 49,997 US assignees by volume: 17th percentile
by Innovation Score (25.2/100): 5.3
avg claims per patent: -77%
grant velocity, last 5 yrs

USPTO PatentsView assignee plate

Corpus R17559 · Foreign Corporation #17,559 · 16 grants

GRANTS-MICRO · MID-PACK · PHOTO-FINISH · CPC-FOCUS · INNOV-THIN · CLAIMS-SPARSE · TYPE-FRNCORP · VEL-DROP · BOOK-FULL

GRANTS-MICRO 16 grants
MID-PACK #17,559/49,997
PHOTO-FINISH Check-cap
CPC-FOCUS A61K · 10 areas
INNOV-THIN 25.2/100
CLAIMS-SPARSE 5.3 claims/avg
TYPE-FRNCORP Foreign Corp
VEL-DROP -77% vel
BOOK-FULL 10/10 fields

Nearest grant-volume peer: Check-cap 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 Chonnam’s 25.2 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 9.8 pts (39%) Velocity 1.1 pts (4%) Breadth 11.2 pts (44%) Claim depth 3.2 pts (13%)

Qualcomm Incorporated · highest

85
Chonnam National… · this assignee

25
3D Lighting… · lowest

7

What this shows Chonnam's Innovation Score is 25.2/100 (17th percentile 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 Chonnam?

Each dot is one of Chonnam’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). Chonnam’s own 5.3 claims/patent is at or below the 14.6 median for these volume peers. Volume here does not track with deeper claims; several lower-volume peers claim more thoroughly per patent.

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

Where Chonnam's grants concentrate

Chonnam National University Hospital is a focused PatentsView assignee: 10 CPC subclasses with 56.3% of grants classified under A61K (Preparations FOR Medical, Dental OR Toiletry Purposes). Peak complete grant year is 2017 (7 grants) versus a trough of 1 in 2016. By volume, Chonnam sits between Check-cap Ltd. and Climeworks AG.

Chonnam's three-year grant acceleration

Chonnam National University Hospital shows 1 grants in 2022–2024 against only 6 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.

Check-cap

16
Cheng Shin Rubber…

16
Chengdu Image Des…

16
Chengdu Xgimi Tec…

16
Chio Kang Medical

16
Cibus US

16
Claas Tractor SAS

16
Climeworks

16
Chonnam National… ◀

16

What this shows Chonnam holds 16 patents at rank #17,543, shown against the 8 assignees closest to it in grant volume rather than the industry's largest filers.

Companies ranked near Chonnam

By rank, the assignees closest to #17,543 in granted patent volume.

Leaders in A61K (Preparations FOR Medical)

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

Chonnam's Innovation Score vs. every tracked assignee

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

25 17th percentile higher than 17% 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 · 2016–2023

Grants by year

Teal-shaded recent years (2020–present) versus the 2016–2019 baseline. Full figures in the table below.

View data table

Chonnam National University Hospital patent grants by year, 2015–2025
Year	Patents Granted	Share of Period
2016	1	6.3%
2017	7	43.8%
2018	1	6.3%
2019	4	25.0%
2021	2	12.5%
2023	1	6.3%

Which technologies does Chonnam National University Hospital patent most?

A61K - Preparations FOR Medical, Dental OR Toiletry Purposes 9

A61L - Methods OR Apparatus FOR Sterilising Materials OR Objects IN GENERAL; Disinfection, Sterilisation OR Deodorisation OF AIR; Chemical Aspects OF Bandages, Dressings, Absorbent Pads OR Surgical ARTICLES; Materials FOR Bandages, Dressings, Absorbent Pads OR Surgical Articles 8

A61F - Filters Implantable Into Blood VESSELS; PROSTHESES; Devices Providing Patency TO, OR Preventing Collapsing OF, Tubular Structures OF THE Body, e.g. STENTS; Orthopaedic, Nursing OR Contraceptive DEVICES; FOMENTATION; Treatment OR Protection OF Eyes OR EARS; Bandages, Dressings OR Absorbent PADS; Firs 6

C07K - Peptides 5

A61P - Specific Therapeutic Activity OF Chemical Compounds OR Medicinal Preparations 4

C12N - Microorganisms OR ENZYMES; Compositions THEREOF; Propagating, Preserving, OR Maintaining MICROORGANISMS; Mutation OR Genetic ENGINEERING; Culture Media 2

B05D - Processes FOR Applying Fluent Materials TO Surfaces, IN General 2

C23C - Coating Metallic MATERIAL; Coating Material With Metallic MATERIAL; Surface Treatment OF Metallic Material BY Diffusion Into THE Surface, BY Chemical Conversion OR SUBSTITUTION; Coating BY Vacuum Evaporation, BY Sputtering, BY ION Implantation OR BY Chemical Vapour Deposition, IN General 2

A61B - DIAGNOSIS; SURGERY; Identification 1

G01N - Investigating OR Analysing Materials BY Determining Their Chemical OR Physical Properties 1

Top 10 of 10 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

Chonnam National University Hospital's patent record in context - here's where to go next.

Chonnam National University Hospital's lead technology class is A61K (Preparations FOR Medical, Dental OR Toiletry Purposes), 56.3% of its portfolio - see every assignee active in that class. Explore A61K
Ranked #17,559 of 49,997 tracked assignees by patent volume - see the full leaderboard. See the ranking
Compare Chonnam National University Hospital against Check-cap Ltd., an assignee filing at a similar volume. Compare portfolios
Innovation Score of 25.2/100 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.