Where does Cheorwon Plasma Research Institute rank among US patent assignees?

According to USPTO PatentsView (2015–2025 granted utility patents), Cheorwon Plasma Research Institute ranks #45,627 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 Cheorwon Plasma Research Institute hold?

Cheorwon Plasma Research Institute holds 5 US utility patents granted between 2017 and 2018, spanning 13 technology areas.

What is Cheorwon Plasma Research Institute's Innovation Score?

Cheorwon Plasma Research Institute has an Innovation Score of 26.4 out of 100 (20th percentile of the corpus). This composite metric weighs portfolio volume (40%), grant velocity (20%), technology breadth (25%), and claim depth (15%).

Is Cheorwon Plasma Research Institute's patent grant rate increasing or decreasing?

Cheorwon Plasma Research Institute's recent grant velocity is -100% 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 Cheorwon Plasma Research Institute's patents?

Cheorwon Plasma Research Institute's patents average 12.4 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 Cheorwon Plasma Research Institute 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

Cheorwon Plasma Research Institute

Q: What technology areas does Cheorwon Plasma Research Institute focus on?

Cheorwon Plasma Research Institute's top technology area is B82Y (Specific Uses OR Applications OF NANOSTRUCTURES; Measurement OR Analysis OF NANOSTRUCTURES; Manufacture OR Treatment OF Nanostructures) with 1 patents, ranking #1,046 of 1,598 assignees active in that subclass. Grants appear in 13 CPC subclasses total.

USPTO PatentsView assignee record - 5 granted patents across 13 technology areas, recorded in grant years 2017–2018. 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: B82Y (Specific Uses OR Applications OF NANOSTRUCTURES; Measurement OR Analysis OF NANOSTRUCTURES; Manufacture OR Treatment OF Nanostructures).

Compiled by PlainPatent · May 15, 2026

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The verdict

According to USPTO PatentsView, Cheorwon ranks #45,627 of 49,997 tracked US assignees by granted-patent volume, with 5 patents across 13 technology areas.

#45,627
of 49,997 US assignees by volume: 20th percentile
by Innovation Score (26.4/100): 12.4
avg claims per patent: -100%
grant velocity, last 5 yrs

USPTO PatentsView assignee plate

Corpus R45627 · Foreign Corporation #45,627 · 5 grants

GRANTS-MICRO · BOTTOM-DECILE · PHOTO-FINISH · CPC-FOCUS · INNOV-THIN · CLAIMS-RICH · TYPE-FRNCORP · VEL-DROP · BOOK-FULL

GRANTS-MICRO 5 grants
BOTTOM-DECILE #45,627/49,997
PHOTO-FINISH Chemetall U S
CPC-FOCUS B82Y · 13 areas
INNOV-THIN 26.4/100
CLAIMS-RICH 12.4 claims/avg
TYPE-FRNCORP Foreign Corp
VEL-DROP -100% vel
BOOK-FULL 10/10 fields

Nearest grant-volume peer: Chemetall U.S., Inc. (±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 Cheorwon’s 26.4 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 6.2 pts (24%) Velocity 0.0 pts (0%) Breadth 12.7 pts (48%) Claim depth 7.4 pts (28%)

Qualcomm Incorporated · highest

85
Cheorwon Plasma… · this assignee

26
3D Lighting… · lowest

7

What this shows Cheorwon's Innovation Score is 26.4/100 (20th 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 Cheorwon?

Each dot is one of Cheorwon’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). Cheorwon’s own 12.4 claims/patent is ABOVE the 8.4 median for these volume peers. More thorough claims than most filers at this scale, not just more of them.

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

Where Cheorwon's grants concentrate

Cheorwon Plasma Research Institute is a focused PatentsView assignee: 13 CPC subclasses with 20% of grants classified under B82Y (Specific Uses OR Applications OF NANOSTRUCTURES; Measurement OR Analysis OF NANOSTRUCTURES; Manufacture OR Treatment OF Nanostructures). Peak complete grant year is 2017 (3 grants) versus a trough of 2 in 2018. By volume, Cheorwon sits between Chemetall U.S., Inc. and Chichibu Fuji Co., Ltd..

Chemetall U S

5
Chengdu Analog Ci…

5
Chengdu Puhuidao…

5
Chengdu Qinchuan…

5
Chertoff Group

5
Chervon Intellect…

5
Chetocorporation

5
Chichibu Fuji

5
Cheorwon Plasma R… ◀

5

What this shows Cheorwon holds 5 patents at rank #45,521, shown against the 8 assignees closest to it in grant volume rather than the industry's largest filers.

Companies ranked near Cheorwon

By rank, the assignees closest to #45,521 in granted patent volume.

Leaders in B82Y (Specific Uses OR Applications OF Nanostructures)

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

Cheorwon's Innovation Score vs. every tracked assignee

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

26 20th percentile higher than 20% 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 · 2017–2018

Grants by year

Teal-shaded recent years (2020–present) versus the 2017–2019 baseline. Full figures in the table below.

View data table

Cheorwon Plasma Research Institute patent grants by year, 2015–2025
Year	Patents Granted	Share of Period
2017	3	60.0%
2018	2	40.0%

Which technologies does Cheorwon Plasma Research Institute patent most?

B82Y - Specific Uses OR Applications OF NANOSTRUCTURES; Measurement OR Analysis OF NANOSTRUCTURES; Manufacture OR Treatment OF Nanostructures 1

B82B - Nanostructures Formed BY Manipulation OF Individual Atoms, Molecules, OR Limited Collections OF Atoms OR Molecules AS Discrete UNITS; Manufacture OR Treatment Thereof 1

B22F - Working Metallic POWDER; Manufacture OF Articles From Metallic POWDER; Making Metallic Powder ; Apparatus OR Devices Specially Adapted FOR Metallic Powder 1

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 1

H01B - CABLES; CONDUCTORS; INSULATORS; Selection OF Materials FOR Their Conductive, Insulating OR Dielectric Properties 1

Y10T - Technical Subjects Covered BY Former US Classification 1

C08K - Use of inorganic or non-macromolecular organic substances as compounding ingredients 1

C08L - Compositions OF Macromolecular Compounds 1

C01B - Non-metallic ELEMENTS; Compounds THEREOF; ; Metalloids OR Compounds Thereof NOT Covered BY Subclass C01c 1

Y02E - Reduction OF Greenhouse GAS [GHG] Emissions, Related TO Energy Generation, Transmission OR Distribution 1

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

C09J - ADHESIVES; Non-mechanical Aspects OF Adhesive Processes IN GENERAL; Adhesive Processes NOT Provided FOR ELSEWHERE; USE OF Materials AS Adhesives 1

C07C - Acyclic OR Carbocyclic Compounds 1

Top 13 of 13 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

Cheorwon Plasma Research Institute's patent record in context - here's where to go next.

Cheorwon Plasma Research Institute's lead technology class is B82Y (Specific Uses OR Applications OF NANOSTRUCTURES; Measurement OR Analysis OF NANOSTRUCTURES; Manufacture OR Treatment OF Nanostructures), 20% of its portfolio - see every assignee active in that class. Explore B82Y
Ranked #45,627 of 49,997 tracked assignees by patent volume - see the full leaderboard. See the ranking
Compare Cheorwon Plasma Research Institute against Chemetall U.S., Inc., an assignee filing at a similar volume. Compare portfolios
Innovation Score of 26.4/100 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.