USPTO 2015–2025 USPTO PatentsView Foreign Corporation

Gwangju Institute OF Science AND Technology

USPTO PatentsView assignee record - 309 granted patents across 146 technology areas, active 2015–2025. Filing-trend and competitive-moat analysis cross-referenced to USPTO Patent Public Search. Primary class: G01N (INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES).

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

Explore the portfolio See the ranking

309

Total patents granted

146

CPC technology areas

11.3

Avg claims per patent

-47%

5-year filing velocity

The verdict

Gwangju holds 309 US patents across 146 technology areas, rank #1,359 of 50,000 tracked assignees.

#1,359
of 50,000 US assignees by volume: Top 6%
by Innovation Score (56.6/100): 11.3
avg claims per patent: -47%
filing velocity, last 5 yrs

Portfolio overview

Gwangju Institute OF Science AND Technology has been granted 309 US utility patents between 2015 and 2025, placing Gwangju Institute OF Science AND Technology at rank #1,359 across all assignees tracked by PlainPatent. This portfolio spans 146 distinct Cooperative Patent Classification (CPC) subclasses, averaging 11.3 claims per patent with primary concentration in G01N (INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES). As a Foreign Corporation, Gwangju Institute OF Science AND Technology is one of the broader-portfolio assignees in the PatentsView dataset. By volume, Gwangju sits between Otter Products, Llc (310 patents, rank #1,355) and Naver Corporation (307 patents, rank #1,363) - the closest US assignees by grant volume. The composite Innovation Score of 56.6/100 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 107 grants, compared with 202 in the 2015–2019 window, a -47% shift in five-year velocity. A cooling filing rate may reflect portfolio consolidation, shifting priorities, or reduced R&D throughput. 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. Gwangju Institute OF Science AND Technology's 11.3 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 Gwangju Institute OF Science AND Technology against peers pursuing similar technology classes.

Otter Products

310
Advanced Bionics

309
Daio Paper

309
Glory

309
Twilio

309
Gwangju Institute… ◀

309
Shanghai Jiao Ton…

308
Certainteed

307
Naver

307

What this shows Gwangju holds 309 patents at rank #1,359, shown against the 8 assignees closest to it in grant volume rather than the industry's largest filers.

Companies ranked near Gwangju

By rank, the assignees closest to #1,359 in granted patent volume.

Leaders in G01N (Investigating OR Analysing Materials BY Determining Their…)

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

Gwangju's Innovation Score vs. every tracked assignee

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

57 Top 6% higher than 94% 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

Gwangju Institute OF Science AND Technology patent grants by year, 2015–2025
Year	Patents Granted	Share of Period
2015	46	14.9%
2016	46	14.9%
2017	34	11.0%
2018	44	14.2%
2019	32	10.4%
2020	31	10.0%
2021	9	2.9%
2022	19	6.1%
2023	18	5.8%
2024	17	5.5%
2025	13	4.2%

Which technologies does Gwangju Institute OF Science AND Technology patent most?

G01N - INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES 44

Y02E - REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION 43

H10K - ORGANIC ELECTRIC SOLID-STATE DEVICES 29

A61K - PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES 21

G02B - OPTICAL ELEMENTS, SYSTEMS OR APPARATUS 20

G06F - ELECTRIC DIGITAL DATA PROCESSING 19

H10H - INORGANIC LIGHT-EMITTING SEMICONDUCTOR DEVICES HAVING POTENTIAL BARRIERS 19

H01L - SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10 19

A61P - SPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS 19

H04L - TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION 19

B82Y - SPECIFIC USES OR APPLICATIONS OF NANOSTRUCTURES; MEASUREMENT OR ANALYSIS OF NANOSTRUCTURES; MANUFACTURE OR TREATMENT OF NANOSTRUCTURES 16

G10L - SPEECH ANALYSIS TECHNIQUES OR SPEECH SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING TECHNIQUES; SPEECH OR AUDIO CODING OR DECODING 16

H04N - PICTORIAL COMMUNICATION, e.g. TELEVISION 15

H10D - INORGANIC ELECTRIC SEMICONDUCTOR DEVICES 15

Y02P - CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS 14

Top 15 of 146 technology areas

Patent Moat Analysis

Portfolio Volume Moderate

Tech Breadth Diversified

Claim Depth Simple

Velocity Declining

Where it ranks

Overall rank by patents

#1,359

Across all tracked assignees

Innovation Score

56.6 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 Gwangju Institute OF Science AND Technology hold?

Gwangju Institute OF Science AND Technology holds 309 US granted patents filed between 2015 and 2025, spanning 146 technology areas.

What is Gwangju Institute OF Science AND Technology's Innovation Score?

Gwangju Institute OF Science AND Technology has an Innovation Score of 56.6 out of 100. This composite metric weighs portfolio volume (40%), filing velocity (20%), technology breadth (25%), and claim depth (15%).

What technology areas does Gwangju Institute OF Science AND Technology focus on?

Gwangju Institute OF Science AND Technology's top technology area is G01N (INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES) with 44 patents. The company has filed patents in 146 CPC subclasses total.

Is Gwangju Institute OF Science AND Technology's patent filing rate increasing or decreasing?

Gwangju Institute OF Science AND Technology's recent filing velocity is -47% compared to the prior five-year period. Filing activity has slowed relative to earlier years.

What does claim depth mean for Gwangju Institute OF Science AND Technology's patents?

Gwangju Institute OF Science AND Technology's patents average 11.3 claims each. This is relatively simple claim structure, typical for focused inventions.

How is the Gwangju Institute OF Science AND Technology 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

Gwangju's 309 grants land it in the top 6% 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 - Gwangju ranks #1,359 of 50,000. Top 50 holders
Most of this portfolio concentrates in G01N - see who else leads that technology area. G01N 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.