USPTO 2015–2025 USPTO PatentsView Foreign Corporation

Okuno Chemical Industries Co., Ltd.

USPTO PatentsView assignee record - 10 granted patents across 20 technology areas, active 2017–2025. Filing-trend and competitive-moat analysis cross-referenced to USPTO Patent Public Search. 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 byPlainPatent Editorial, US Patent Intelligence Editorial Team

Explore the portfolio See the ranking

Total patents granted

CPC technology areas

14.0

Avg claims per patent

+0%

5-year filing velocity

The verdict

Okuno holds 10 US patents across 20 technology areas, rank #27,015 of 50,000 tracked assignees.

#27,015
of 50,000 US assignees by volume: Top 45%
by Innovation Score (36.9/100): 14.0
avg claims per patent: +0%
filing velocity, last 5 yrs

Portfolio overview

Okuno Chemical Industries Co., Ltd. has been granted 10 US utility patents between 2017 and 2025, placing Okuno Chemical Industries Co., Ltd. at rank #27,015 across all assignees tracked by PlainPatent. This portfolio spans 20 distinct Cooperative Patent Classification (CPC) subclasses, averaging 14.0 claims per patent with primary concentration in 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). As a Foreign Corporation, Okuno Chemical Industries Co., Ltd. is one of the more focused assignees in the PatentsView dataset. By volume, Okuno sits between Ocunexus Therapeutics, Inc. (10 patents, rank #27,011) and Omnivision Technologies (shanghai) Co., Ltd. (10 patents, rank #27,019) - the closest US assignees by grant volume. The composite Innovation Score of 36.9/100 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 5 grants, compared with 5 in the 2015–2019 window, a +0% shift in five-year velocity. Steady filing volume suggests sustained innovation without dramatic pivots. 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. Okuno Chemical Industries Co., Ltd.'s 14.0 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 Okuno Chemical Industries Co., Ltd. against peers pursuing similar technology classes.

Ocunexus Therapeu…

10
ODL Incorporated

10
Okamoto Machine T…

10
Okayama Prefecture

10
Olababy Incorpora…

10
OMNI Consumer Pro…

10
OMNI Solutions

10
Omnivision (Shang…

10
Okuno Chemical In… ◀

10

What this shows Okuno holds 10 patents at rank #27,015, shown against the 8 assignees closest to it in grant volume rather than the industry's largest filers.

Companies ranked near Okuno

By rank, the assignees closest to #27,015 in granted patent volume.

Leaders in C23C (Coating Metallic Material)

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

Okuno's Innovation Score vs. every tracked assignee

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

37 Top 45% higher than 55% 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 · 2017–2025

Grants by year

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

View data table

Okuno Chemical Industries Co., Ltd. patent grants by year, 2015–2025
Year	Patents Granted	Share of Period
2017	1	10.0%
2018	3	30.0%
2019	1	10.0%
2020	1	10.0%
2021	1	10.0%
2023	1	10.0%
2024	1	10.0%
2025	1	10.0%

Which technologies does Okuno Chemical Industries 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 9

C25D - PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; APPARATUS THEREFOR 6

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 3

C03C - CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS 2

C08J - WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H 2

C23F - NON-MECHANICAL REMOVAL OF METALLIC MATERIAL FROM SURFACE ; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL; MULTI-STEP PROCESSES FOR SURFACE TREATMENT OF METALLIC MATERIAL INVOLVING AT LEAST ONE PROCESS PROVIDED FOR IN CLASS C23 AND AT LEAST ONE PROCESS COVERED BY SUBCLASS C21D 2

C25F - PROCESSES FOR THE ELECTROLYTIC REMOVAL OF MATERIALS FROM OBJECTS; APPARATUS THEREFOR 2

C01G - COMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSES C01D OR C01F 2

H05K - PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS 1

C09K - MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE 1

H01L - SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10 1

C25B - ELECTROLYTIC OR ELECTROPHORETIC PROCESSES FOR THE PRODUCTION OF COMPOUNDS OR NON-METALS; APPARATUS THEREFOR 1

C23G - CLEANING OR DE-GREASING OF METALLIC MATERIAL BY CHEMICAL METHODS OTHER THAN ELECTROLYSIS 1

C01P - INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS 1

C04B - LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE ; CERAMICS ; REFRACTORIES; TREATMENT OF NATURAL STONE 1

Top 15 of 20 technology areas

Patent Moat Analysis

Portfolio Volume Light

Tech Breadth Multi-domain

Claim Depth Standard

Velocity Growing

Where it ranks

Overall rank by patents

#27,015

Across all tracked assignees

Innovation Score

36.9 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 Okuno Chemical Industries Co., Ltd. hold?

Okuno Chemical Industries Co., Ltd. holds 10 US granted patents filed between 2017 and 2025, spanning 20 technology areas.

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

Okuno Chemical Industries Co., Ltd. has an Innovation Score of 36.9 out of 100. This composite metric weighs portfolio volume (40%), filing velocity (20%), technology breadth (25%), and claim depth (15%).

What technology areas does Okuno Chemical Industries Co., Ltd. focus on?

Okuno Chemical Industries 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 9 patents. The company has filed patents in 20 CPC subclasses total.

Is Okuno Chemical Industries Co., Ltd.'s patent filing rate increasing or decreasing?

Okuno Chemical Industries Co., Ltd.'s recent filing velocity is +0% compared to the prior five-year period. The company is maintaining or growing its patent output.

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

Okuno Chemical Industries Co., Ltd.'s patents average 14.0 claims each. This falls within the standard range, providing solid legal coverage.

How is the Okuno Chemical Industries 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

Okuno's 10 grants land it in the top 45% 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 - Okuno ranks #27,015 of 50,000. Top 50 holders
Most of this portfolio concentrates in C23C - see who else leads that technology area. C23C 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. Data current as of May 2026.