USPTO 2015–2025 USPTO PatentsView Foreign Corporation

Posco Co., Ltd

USPTO PatentsView assignee record - 691 granted patents across 137 technology areas, active 2015–2025. Filing-trend and competitive-moat analysis cross-referenced to USPTO Patent Public Search. Primary class: C22C (ALLOYS).

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

Explore the portfolio See the ranking

691

Total patents granted

137

CPC technology areas

8.9

Avg claims per patent

+158%

5-year filing velocity

The verdict

Posco holds 691 US patents across 137 technology areas, rank #645 of 50,000 tracked assignees.

#645
of 50,000 US assignees by volume: Top 2%
by Innovation Score (63.7/100): 8.9
avg claims per patent: +158%
filing velocity, last 5 yrs

Portfolio overview

Posco Co., Ltd has been granted 691 US utility patents between 2015 and 2025, placing Posco Co., Ltd at rank #645 across all assignees tracked by PlainPatent. This portfolio spans 137 distinct Cooperative Patent Classification (CPC) subclasses, averaging 8.9 claims per patent with primary concentration in C22C (ALLOYS). As a Foreign Corporation, Posco Co., Ltd is one of the broader-portfolio assignees in the PatentsView dataset. By volume, Posco sits between Centurylink Intellectual Property Llc (695 patents, rank #641) and Rivian IP Holdings, Llc (690 patents, rank #649) - the closest US assignees by grant volume. The composite Innovation Score of 63.7/100 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 498 grants, compared with 193 in the 2015–2019 window, a +158% shift in five-year velocity. An acceleration of this magnitude signals aggressive R&D investment and expanding technical ambition. 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. Posco Co., Ltd's 8.9 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 Posco Co., Ltd against peers pursuing similar technology classes.

Centurylink Intel…

695
Cerner Innovation

695
Callaway Golf

694
Cameron Internati…

692
Schneider Electri…

691
University of Was…

691
Posco ◀

691
Immatics Biotechn…

690
Rivian IP Holdings

690

What this shows Posco holds 691 patents at rank #645, shown against the 8 assignees closest to it in grant volume rather than the industry's largest filers.

Companies ranked near Posco

By rank, the assignees closest to #645 in granted patent volume.

Leaders in C22C (Alloys)

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

Posco's Innovation Score vs. every tracked assignee

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

64 Top 2% higher than 98% 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

Posco Co., Ltd patent grants by year, 2015–2025
Year	Patents Granted	Share of Period
2015	24	3.5%
2016	35	5.1%
2017	40	5.8%
2018	51	7.4%
2019	43	6.2%
2020	54	7.8%
2021	73	10.6%
2022	86	12.4%
2023	100	14.5%
2024	89	12.9%
2025	96	13.9%

Which technologies does Posco Co., Ltd patent most?

C22C - ALLOYS 464

C21D - MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING 400

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 263

B32B - LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM 164

Y10T - TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION 122

Y02P - CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS 59

H01F - MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES 57

B23K - SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM 53

C09D - COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR 45

Y02E - REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION 42

B21B - ROLLING OF METAL 41

H01M - PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY 33

B22D - CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES 31

B21D - WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL 31

C08K - Use of inorganic or non-macromolecular organic substances as compounding ingredients 29

Top 15 of 137 technology areas

Patent Moat Analysis

Portfolio Volume Moderate

Tech Breadth Diversified

Claim Depth Simple

Velocity Accelerating

Where it ranks

Overall rank by patents

#645

Across all tracked assignees

Innovation Score

63.7 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 Posco Co., Ltd hold?

Posco Co., Ltd holds 691 US granted patents filed between 2015 and 2025, spanning 137 technology areas.

What is Posco Co., Ltd's Innovation Score?

Posco Co., Ltd has an Innovation Score of 63.7 out of 100. This composite metric weighs portfolio volume (40%), filing velocity (20%), technology breadth (25%), and claim depth (15%).

What technology areas does Posco Co., Ltd focus on?

Posco Co., Ltd's top technology area is C22C (ALLOYS) with 464 patents. The company has filed patents in 137 CPC subclasses total.

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

Posco Co., Ltd's recent filing velocity is +158% compared to the prior five-year period. This indicates accelerating innovation.

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

Posco Co., Ltd's patents average 8.9 claims each. This is relatively simple claim structure, typical for focused inventions.

How is the Posco 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

Posco's 691 grants land it in the top 2% 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 - Posco ranks #645 of 50,000. Top 50 holders
Most of this portfolio concentrates in C22C - see who else leads that technology area. C22C 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.