Where does Hansol Chemical Co., Ltd rank among US patent assignees?

According to USPTO PatentsView (2015–2025 granted utility patents), Hansol Chemical Co., Ltd ranks #18,704 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 Hansol Chemical Co., Ltd hold?

Hansol Chemical Co., Ltd holds 15 US utility patents granted between 2016 and 2025, spanning 18 technology areas.

What is Hansol Chemical Co., Ltd's Innovation Score?

Hansol Chemical Co., Ltd has an Innovation Score of 50.2 out of 100 (top 13% of the corpus). This composite metric weighs portfolio volume (40%), grant velocity (20%), technology breadth (25%), and claim depth (15%).

Is Hansol Chemical Co., Ltd's patent grant rate increasing or decreasing?

Hansol Chemical Co., Ltd's recent grant velocity is +400% compared to the prior five-year period (grant years, not application filing dates). This indicates accelerating grant output.

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

Hansol Chemical Co., Ltd's patents average 9.3 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 Hansol Chemical 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.

USPTO 2015–2025 USPTO PatentsView Foreign Corporation

Hansol Chemical Co., Ltd

Q: What technology areas does Hansol Chemical Co., Ltd focus on?

Hansol Chemical Co., Ltd's top technology area is 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) with 11 patents, ranking #234 of 1,658 assignees active in that subclass. Grants appear in 18 CPC subclasses total.

USPTO PatentsView assignee record - 15 granted patents across 18 technology areas, recorded in grant years 2016–2025. 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: 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 Evap).

Compiled by PlainPatent · May 15, 2026

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The verdict

According to USPTO PatentsView, Hansol ranks #18,704 of 49,997 tracked US assignees by granted-patent volume, with 15 patents across 18 technology areas.

#18,704
of 49,997 US assignees by volume: Top 13%
by Innovation Score (50.2/100): 9.3
avg claims per patent: +400%
grant velocity, last 5 yrs

USPTO PatentsView assignee plate

Corpus R18704 · Foreign Corporation #18,704 · 15 grants

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

GRANTS-MICRO 15 grants
MID-PACK #18,704/49,997
PHOTO-FINISH H-P Products
CPC-FOCUS C23C · 18 areas
INNOV-PAR 50.2/100
CLAIMS-PAR 9.3 claims/avg
TYPE-FRNCORP Foreign Corp
VEL-SURGE +400% vel
BOOK-FULL 10/10 fields

Nearest grant-volume peer: H-P Products, 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 Hansol’s 50.2 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 9.6 pts (19%) Velocity 20.0 pts (40%) Breadth 15.0 pts (30%) Claim depth 5.6 pts (11%)

Qualcomm Incorporated · highest

85
Hansol Chemical · this assignee

50
3D Lighting… · lowest

7

What this shows Hansol's Innovation Score is 50.2/100 (top 13% 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 Hansol?

Each dot is one of Hansol’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). Hansol’s own 9.3 claims/patent is ABOVE the 6.0 median for these volume peers. More thorough claims than most filers at this scale, not just more of them.

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

Where Hansol's grants concentrate

Hansol Chemical Co., Ltd is a focused PatentsView assignee: 18 CPC subclasses with 73.3% of grants classified under 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 Evap). Peak complete grant year is 2022 (5 grants) versus a trough of 1 in 2016. By volume, Hansol sits between H-P Products, Inc. and Heuft Systemtechnik GMBH.

Hansol's three-year grant acceleration

Hansol Chemical Co., Ltd shows 9 grants in 2022–2024 against only 2 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.

H-P Products

15
Haihong Electric

15
Hain YO Enterpris…

15
Hangzhou Everich…

15
Head-direct (Kuns…

15
Healthier Choices…

15
Hetero Labs

15
Heuft Systemtechn…

15
Hansol Chemical ◀

15

What this shows Hansol holds 15 patents at rank #18,697, shown against the 8 assignees closest to it in grant volume rather than the industry's largest filers.

Companies ranked near Hansol

By rank, the assignees closest to #18,697 in granted patent volume.

Leaders in C23C (Coating Metallic Material)

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

Hansol's Innovation Score vs. every tracked assignee

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

50 Top 13% higher than 87% 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 · 2016–2025

Grants by year

Teal-shaded recent years (2020–present) versus the 2016–2019 baseline. Full figures in the table below.

View data table

Hansol Chemical Co., Ltd patent grants by year, 2015–2025
Year	Patents Granted	Share of Period
2016	1	6.7%
2019	1	6.7%
2021	1	6.7%
2022	5	33.3%
2024	4	26.7%
2025partial year	3	20.0%

Which technologies does Hansol Chemical Co., Ltd patent most?

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 11

C07F - Acyclic, Carbocyclic OR Heterocyclic Compounds Containing Elements Other Than Carbon, Hydrogen, Halogen, Oxygen, Nitrogen, Sulfur, Selenium OR Tellurium 11

H01L - Semiconductor Devices NOT Covered BY Class H10 4

Y02E - Reduction OF Greenhouse GAS [GHG] Emissions, Related TO Energy Generation, Transmission OR Distribution 4

H01M - Processes OR Means, e.g. Batteries, FOR THE Direct Conversion OF Chemical Energy Into Electrical Energy 3

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

G02B - Optical Elements, Systems OR Apparatus 1

C09K - Materials FOR Miscellaneous Applications, NOT Provided FOR Elsewhere 1

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 1

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

C07C - Acyclic OR Carbocyclic Compounds 1

C08F - Macromolecular Compounds Obtained BY Reactions Only Involving Carbon-to-carbon Unsaturated Bonds 1

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

H01G - CAPACITORS; Capacitors, Rectifiers, Detectors, Switching Devices, Light-sensitive OR Temperature-sensitive Devices OF THE Electrolytic Type 1

C08L - Compositions OF Macromolecular Compounds 1

Top 15 of 18 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

Hansol Chemical Co., Ltd's patent record in context - here's where to go next.

Hansol Chemical Co., Ltd's lead technology class is 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 Evap), 73.3% of its portfolio - see every assignee active in that class. Explore C23C
Ranked #18,704 of 49,997 tracked assignees by patent volume - see the full leaderboard. See the ranking
Compare Hansol Chemical Co., Ltd against H-P Products, Inc., an assignee filing at a similar volume. Compare portfolios
Innovation Score of 50.2/100 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.