Where does Korea Resources Corporation rank among US patent assignees?

According to USPTO PatentsView (2015–2025 granted utility patents), Korea Resources Corporation ranks #24,666 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 Korea Resources Corporation hold?

Korea Resources Corporation holds 11 US utility patents granted between 2015 and 2022, spanning 14 technology areas.

What is Korea Resources Corporation's Innovation Score?

Korea Resources Corporation has an Innovation Score of 31.2 out of 100 (37th 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 Korea Resources Corporation focus on?

Korea Resources Corporation's top technology area is C22B (Production AND Refining OF Metals ; Pretreatment OF RAW Materials) with 8 patents, ranking #41 of 335 assignees active in that subclass. Grants appear in 14 CPC subclasses total.

Is Korea Resources Corporation's patent grant rate increasing or decreasing?

Korea Resources Corporation's recent grant velocity is +350% compared to the prior five-year period (grant years, not application filing dates). This indicates accelerating grant output.

What does claim depth mean for Korea Resources Corporation's patents?

Korea Resources Corporation's patents average 6.8 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 Korea Resources Corporation 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

Korea Resources Corporation

USPTO PatentsView assignee record - 11 granted patents across 14 technology areas, recorded in grant years 2015–2022. 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: C22B (Production AND Refining OF Metals ; Pretreatment OF RAW Materials).

Compiled by PlainPatent · May 15, 2026

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Explore the portfolio See the ranking

The verdict

According to USPTO PatentsView, Korea ranks #24,666 of 49,997 tracked US assignees by granted-patent volume, with 11 patents across 14 technology areas.

#24,666
of 49,997 US assignees by volume: 37th percentile
by Innovation Score (31.2/100): 6.8
avg claims per patent: +350%
grant velocity, last 5 yrs

USPTO PatentsView assignee plate

Corpus R24666 · Foreign Corporation #24,666 · 11 grants

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

GRANTS-MICRO 11 grants
MID-PACK #24,666/49,997
PHOTO-FINISH Kongju National…
CPC-FOCUS C22B · 14 areas
INNOV-THIN 31.2/100
CLAIMS-SPARSE 6.8 claims/avg
TYPE-FRNCORP Foreign Corp
VEL-SURGE +350% vel
BOOK-FULL 10/10 fields

Nearest grant-volume peer: Kongju National University Industry-university Cooperation Foundation (±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 Korea’s 31.2 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 8.6 pts (28%) Velocity 5.3 pts (17%) Breadth 13.2 pts (42%) Claim depth 4.1 pts (13%)

Qualcomm Incorporated · highest

85
Korea Resources · this assignee

31
3D Lighting… · lowest

7

What this shows Korea's Innovation Score is 31.2/100 (37th 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 Korea?

Each dot is one of Korea’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). Korea’s own 6.8 claims/patent is at or below the 10.4 median for these volume peers. Volume here does not track with deeper claims; several lower-volume peers claim more thoroughly per patent.

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

Where Korea's grants concentrate

Korea Resources Corporation is a focused PatentsView assignee: 14 CPC subclasses with 72.7% of grants classified under C22B (Production AND Refining OF Metals ; Pretreatment OF RAW Materials). Peak complete grant year is 2021 (4 grants) versus a trough of 1 in 2015. By volume, Korea sits between Kongju National University Industry-university Cooperation Foundation and KP Medcure, Inc..

Korea's three-year grant acceleration

Korea Resources Corporation shows 4 grants in 2022–2024 against only 5 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.

Kongju National U…

11
Koni B V

11
Kore Essentials

11
Korea Fuel-tech

11
Korea Zinc

11
Korean Broadcasti…

11
Koyo Machine Indu…

11
KP Medcure

11
Korea Resources ◀

11

What this shows Korea holds 11 patents at rank #24,639, shown against the 8 assignees closest to it in grant volume rather than the industry's largest filers.

Companies ranked near Korea

By rank, the assignees closest to #24,639 in granted patent volume.

Leaders in C22B (Production AND Refining OF Metals)

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

Korea's Innovation Score vs. every tracked assignee

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

31 37th percentile higher than 37% 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 · 2015–2022

Grants by year

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

View data table

Korea Resources Corporation patent grants by year, 2015–2025
Year	Patents Granted	Share of Period
2015	1	9.1%
2017	1	9.1%
2020	1	9.1%
2021	4	36.4%
2022	4	36.4%

Which technologies does Korea Resources Corporation patent most?

C22B - Production AND Refining OF Metals ; Pretreatment OF RAW Materials 8

Y02P - Climate Change Mitigation Technologies IN THE Production OR Processing OF Goods 7

C01G - Compounds Containing Metals NOT Covered BY Subclasses C01d OR C01f 5

G01N - Investigating OR Analysing Materials BY Determining Their Chemical OR Physical Properties 3

C01P - Indexing Scheme Relating TO Structural AND Physical Aspects OF Solid Inorganic Compounds 2

B01D - Separation 2

C01D - Compounds OF Alkali Metals, i.e. Lithium, Sodium, Potassium, Rubidium, Caesium, OR Francium 1

B01J - Chemical OR Physical Processes, e.g. Catalysis OR Colloid CHEMISTRY; Their Relevant Apparatus 1

C01F - Compounds OF THE Metals Beryllium, Magnesium, Aluminium, Calcium, Strontium, Barium, Radium, Thorium, OR OF THE Rare-earth Metals 1

G08G - Traffic Control Systems 1

G06F - Electric Digital Data Processing 1

G01C - Measuring Distances, Levels OR BEARINGS; SURVEYING; NAVIGATION; Gyroscopic INSTRUMENTS; Photogrammetry OR Videogrammetry 1

G06T - Image Data Processing OR Generation, IN General 1

G01J - Measurement OF Intensity, Velocity, Spectral Content, Polarisation, Phase OR Pulse Characteristics OF Infrared, Visible OR Ultraviolet LIGHT; COLORIMETRY; Radiation Pyrometry 1

Top 14 of 14 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

Korea Resources Corporation's patent record in context - here's where to go next.

Korea Resources Corporation's lead technology class is C22B (Production AND Refining OF Metals ; Pretreatment OF RAW Materials), 72.7% of its portfolio - see every assignee active in that class. Explore C22B
Ranked #24,666 of 49,997 tracked assignees by patent volume - see the full leaderboard. See the ranking
Compare Korea Resources Corporation against Kongju National University Industry-university Cooperation Foundation, an assignee filing at a similar volume. Compare portfolios
Innovation Score of 31.2/100 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.