USPTO 2015–2025 USPTO PatentsView Foreign Corporation

Korea ZINC Co., Ltd.

USPTO PatentsView assignee record - 11 granted patents across 20 technology areas, active 2020–2025. Filing-trend and competitive-moat analysis cross-referenced to USPTO Patent Public Search. Primary class: C22B (PRODUCTION AND REFINING OF METALS ; PRETREATMENT OF RAW MATERIALS).

Compiled byPlainPatent Editorial, US Patent Intelligence Editorial Team

Explore the portfolio See the ranking

Total patents granted

CPC technology areas

15.6

Avg claims per patent

5-year filing velocity

The verdict

Korea holds 11 US patents across 20 technology areas, rank #24,640 of 50,000 tracked assignees.

#24,640
of 50,000 US assignees by volume: Top 13%
by Innovation Score (50.4/100): 15.6
avg claims per patent

Portfolio overview

Korea ZINC Co., Ltd. has been granted 11 US utility patents between 2020 and 2025, placing Korea ZINC Co., Ltd. at rank #24,640 across all assignees tracked by PlainPatent. This portfolio spans 20 distinct Cooperative Patent Classification (CPC) subclasses, averaging 15.6 claims per patent with primary concentration in C22B (PRODUCTION AND REFINING OF METALS ; PRETREATMENT OF RAW MATERIALS). As a Foreign Corporation, Korea ZINC Co., Ltd. is one of the more focused assignees in the PatentsView dataset. By volume, Korea sits between KONI B.v. (11 patents, rank #24,636) and Kriwan Industrie-elektronik Gmbh (11 patents, rank #24,644) - the closest US assignees by grant volume. The composite Innovation Score of 50.4/100 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. Historical data spans 2020 through 2025, with 11 total grants over that period. Velocity comparisons require five years of historical filings to calibrate. 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. Korea ZINC Co., Ltd.'s 15.6 average claims per patent sits within the typical range for solid legal coverage without excessive prosecution cost, while a multi-domain presence across 20 subclasses balances depth with breadth. Combined with portfolio volume, these signals let analysts, investors, and licensing professionals benchmark Korea ZINC Co., Ltd. against peers pursuing similar technology classes.

KONI B V

11
KORE Essentials

11
Korea Fuel-tech

11
Korea Resources

11
Korean Broadcasti…

11
KOYO Machine Indu…

11
KP Medcure

11
Kriwan Industrie-…

11
Korea ZINC ◀

11

What this shows Korea holds 11 patents at rank #24,640, shown against the 8 assignees closest to it in grant volume rather than the industry's largest filers.

Korea's Innovation Score vs. every tracked assignee

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

50 Top 13% higher than 87% 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 · 2020–2025

Grants by year

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

View data table

Korea ZINC Co., Ltd. patent grants by year, 2015–2025
Year	Patents Granted	Share of Period
2020	1	9.1%
2021	1	9.1%
2024	5	45.5%
2025	4	36.4%

Which technologies does Korea ZINC Co., Ltd. patent most?

C22B - PRODUCTION AND REFINING OF METALS ; PRETREATMENT OF RAW MATERIALS 9

Y02P - CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS 9

C01G - COMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSES C01D OR C01F 8

H01M - PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY 7

C01P - INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS 3

B09B - DISPOSAL OF SOLID WASTE NOT OTHERWISE PROVIDED FOR 3

B01D - SEPARATION 2

Y02W - CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT 2

B08B - CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL 1

B01J - CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS 1

C25D - PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; APPARATUS THEREFOR 1

C02F - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE 1

C25C - PROCESSES FOR THE ELECTROLYTIC PRODUCTION, RECOVERY OR REFINING OF METALS; APPARATUS THEREFOR 1

C01D - COMPOUNDS OF ALKALI METALS, i.e. LITHIUM, SODIUM, POTASSIUM, RUBIDIUM, CAESIUM, OR FRANCIUM 1

B03B - SEPARATING SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS 1

Top 15 of 20 technology areas

Patent Moat Analysis

Portfolio Volume Light

Tech Breadth Multi-domain

Claim Depth Standard

Where it ranks

Overall rank by patents

#24,640

Across all tracked assignees

Innovation Score

50.4 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 Korea ZINC Co., Ltd. hold?

Korea ZINC Co., Ltd. holds 11 US granted patents filed between 2020 and 2025, spanning 20 technology areas.

What is Korea ZINC Co., Ltd.'s Innovation Score?

Korea ZINC Co., Ltd. has an Innovation Score of 50.4 out of 100. This composite metric weighs portfolio volume (40%), filing velocity (20%), technology breadth (25%), and claim depth (15%).

What technology areas does Korea ZINC Co., Ltd. focus on?

Korea ZINC Co., Ltd.'s top technology area is C22B (PRODUCTION AND REFINING OF METALS ; PRETREATMENT OF RAW MATERIALS) with 9 patents. The company has filed patents in 20 CPC subclasses total.

Is Korea ZINC Co., Ltd.'s patent filing rate increasing or decreasing?

Insufficient historical data is available to calculate a velocity trend for Korea ZINC Co., Ltd..

What does claim depth mean for Korea ZINC Co., Ltd.'s patents?

Korea ZINC Co., Ltd.'s patents average 15.6 claims each. This falls within the standard range, providing solid legal coverage.

How is the Korea ZINC Co., Ltd. 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

Korea's 11 grants land it in the top 13% 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 - Korea ranks #24,640 of 50,000. Top 50 holders
Most of this portfolio concentrates in C22B - see who else leads that technology area. C22B 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

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.