PlainPatent
USPTO 2015–2025 USPTO PatentsView Foreign Corporation

Chugoku Marine Paints, Ltd.

USPTO PatentsView assignee record - 17 granted patents across 20 technology areas, active 2017–2024. Filing-trend and competitive-moat analysis cross-referenced to USPTO Patent Public Search. Primary class: 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 MATERI).

Explore the portfolio See the ranking
17
Total patents granted
20
CPC technology areas
14.3
Avg claims per patent
-30%
5-year filing velocity

The verdict

Chugoku holds 17 US patents across 20 technology areas, rank #16,672 of 50,000 tracked assignees.

#16,672
of 50,000 US assignees by volume
Top 40%
by Innovation Score (38.8/100)
14.3
avg claims per patent
-30%
filing velocity, last 5 yrs

Portfolio overview

CHUGOKU MARINE PAINTS, LTD. has been granted 17 US utility patents between 2017 and 2024, placing CHUGOKU MARINE PAINTS, LTD. at rank #16,672 across all assignees tracked by PlainPatent. This portfolio spans 20 distinct Cooperative Patent Classification (CPC) subclasses, averaging 14.3 claims per patent with primary concentration in 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 MATERI). As a Foreign Corporation, CHUGOKU MARINE PAINTS, LTD. is one of the more focused assignees in the PatentsView dataset. The composite Innovation Score of 38.8/100 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 7 grants, compared with 10 in the 2015–2019 window, a -30% shift in five-year velocity. A cooling filing rate may reflect portfolio consolidation, shifting priorities, or reduced R&D throughput. 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. CHUGOKU MARINE PAINTS, LTD.'s 14.3 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 CHUGOKU MARINE PAINTS, LTD. against peers pursuing similar technology classes.

How does CHUGOKU compare?

Granted US patents 2015–2025 versus the largest corporate holders, this company marked ◀

patents

What this shows CHUGOKU holds 17 patents, placing it at rank #16,672 overall, well behind the volume leaders but ahead of the tens of thousands of smaller assignees in the dataset.

Source USPTO PatentsView, granted utility patents As of 2015–2025

CHUGOKU's Innovation Score vs. every tracked assignee

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

39 Top 40% higher than 60% of 50,000 US assignees

0–10: 687 US assignees (1%). Below this entry. 10–20: 2,527 US assignees (5%). Below this entry. 20–30: 13,162 US assignees (26%). Below this entry. 30–40: 15,294 US assignees (31%). This entry sits in this band. 40–50: 11,491 US assignees (23%). Above this entry. 50–60: 5,058 US assignees (10%). Above this entry. 60–70: 1,537 US assignees (3%). Above this entry. 70–80: 234 US assignees (0%). Above this entry. 80–90: 10 US assignees (0%). Above this entry. 90–100: 0 US assignees (0%). Above this entry. This assignee 0 100 every tracked assignee, bucketed by value

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 · 2017–2024

012345 20172018201920202021202220232024 1
USPTO utility patent grants by year · 2017–2024

Grants by year

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

View data table
CHUGOKU MARINE PAINTS, LTD. patent grants by year, 2015–2025
Year Patents Granted Share of Period
2017 4 23.5%
2018 3 17.6%
2019 3 17.6%
2020 1 5.9%
2021 2 11.8%
2022 2 11.8%
2023 1 5.9%
2024 1 5.9%

Which technologies does CHUGOKU MARINE PAINTS, LTD. patent most?

Top 15 of 20 technology areas

Patent Moat Analysis

Portfolio Volume Light
Tech Breadth Multi-domain
Claim Depth Standard
Velocity Declining

Where it ranks

Overall rank by patents

#16,672

Across all tracked assignees

Innovation Score

38.8 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 CHUGOKU MARINE PAINTS, LTD. hold?
CHUGOKU MARINE PAINTS, LTD. holds 17 US granted patents filed between 2017 and 2024, spanning 20 technology areas.
What is CHUGOKU MARINE PAINTS, LTD.'s Innovation Score?
CHUGOKU MARINE PAINTS, LTD. has an Innovation Score of 38.8 out of 100. This composite metric weighs portfolio volume (40%), filing velocity (20%), technology breadth (25%), and claim depth (15%).
What technology areas does CHUGOKU MARINE PAINTS, LTD. focus on?
CHUGOKU MARINE PAINTS, LTD.'s top technology area is 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) with 15 patents. The company has filed patents in 20 CPC subclasses total.
Is CHUGOKU MARINE PAINTS, LTD.'s patent filing rate increasing or decreasing?
CHUGOKU MARINE PAINTS, LTD.'s recent filing velocity is -30% compared to the prior five-year period. Filing activity has slowed relative to earlier years.
What does claim depth mean for CHUGOKU MARINE PAINTS, LTD.'s patents?
CHUGOKU MARINE PAINTS, LTD.'s patents average 14.3 claims each. This falls within the standard range, providing solid legal coverage.
How is the CHUGOKU MARINE PAINTS, 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.

Guides to patent portfolio analysis

How Innovation Score Works

Understand the four dimensions behind the composite score
How to Read Patent Data

Plain-English guide to CPC codes, claims, and metrics
Patent Moat Analysis

How companies use patents as competitive barriers

How to use this portfolio

Chugoku's 17 grants land it in the top 40% 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 - Chugoku ranks #16,672 of 50,000. Top 50 holders
  • Most of this portfolio concentrates in C09D - see who else leads that technology area. C09D 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.

Explore the patent dataset

C09D technology

CHUGOKU MARINE PAINTS, LTD.'s primary CPC class, all holders and yearly trends
Top 50 patent holders

See where CHUGOKU MARINE PAINTS, LTD. ranks among the largest US patent assignees
All technology classes

Browse every CPC technology area by patent activity
How the score works

The four dimensions behind the Innovation Score

Related

All companies → | All technologies → | Rankings →
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