Where does Japan Marine United Corporation rank among US patent assignees?

According to USPTO PatentsView (2015–2025 granted utility patents), Japan Marine United Corporation ranks #47,909 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 Japan Marine United Corporation hold?

Japan Marine United Corporation holds 5 US utility patents granted between 2015 and 2016, spanning 7 technology areas.

What is Japan Marine United Corporation's Innovation Score?

Japan Marine United Corporation has an Innovation Score of 22.3 out of 100 (10th percentile of the corpus). This composite metric weighs portfolio volume (40%), grant velocity (20%), technology breadth (25%), and claim depth (15%).

What technology areas does Japan Marine United Corporation focus on?

Japan Marine United Corporation's top technology area is B63B (Ships OR Other Waterborne VESSELS; Equipment FOR Shipping) with 3 patents, ranking #257 of 645 assignees active in that subclass. Grants appear in 7 CPC subclasses total.

Is Japan Marine United Corporation's patent grant rate increasing or decreasing?

Japan Marine United Corporation's recent grant velocity is -100% compared to the prior five-year period (grant years, not application filing dates). Grant activity has slowed relative to earlier years.

What does claim depth mean for Japan Marine United Corporation's patents?

Japan Marine United Corporation's patents average 11.2 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 Japan Marine United Corporation 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

Japan Marine United Corporation

USPTO PatentsView assignee record - 5 granted patents across 7 technology areas, recorded in grant years 2015–2016. 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: B63B (Ships OR Other Waterborne VESSELS; Equipment FOR Shipping).

Compiled by PlainPatent · May 15, 2026

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The verdict

According to USPTO PatentsView, Japan ranks #47,909 of 49,997 tracked US assignees by granted-patent volume, with 5 patents across 7 technology areas.

#47,909
of 49,997 US assignees by volume: 10th percentile
by Innovation Score (22.3/100): 11.2
avg claims per patent: -100%
grant velocity, last 5 yrs

USPTO PatentsView assignee plate

Corpus R47909 · Foreign Corporation #47,909 · 5 grants

GRANTS-MICRO · BOTTOM-DECILE · PHOTO-FINISH · CPC-NARROW · INNOV-THIN · CLAIMS-PAR · TYPE-FRNCORP · VEL-DROP · BOOK-FULL

GRANTS-MICRO 5 grants
BOTTOM-DECILE #47,909/49,997
PHOTO-FINISH Janibell
CPC-NARROW B63B · 7 areas
INNOV-THIN 22.3/100
CLAIMS-PAR 11.2 claims/avg
TYPE-FRNCORP Foreign Corp
VEL-DROP -100% vel
BOOK-FULL 10/10 fields

Nearest grant-volume peer: Janibell, 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 Japan’s 22.3 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 6.2 pts (28%) Velocity 0.0 pts (0%) Breadth 9.4 pts (42%) Claim depth 6.7 pts (30%)

Qualcomm Incorporated · highest

85
Japan Marine United · this assignee

22
3D Lighting… · lowest

7

What this shows Japan's Innovation Score is 22.3/100 (10th percentile 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 Japan?

Each dot is one of Japan’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). Japan’s own 11.2 claims/patent is ABOVE the 7.0 median for these volume peers. More thorough claims than most filers at this scale, not just more of them.

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

Where Japan's grants concentrate

Japan Marine United Corporation is a focused PatentsView assignee: 7 CPC subclasses with 60% of grants classified under B63B (Ships OR Other Waterborne VESSELS; Equipment FOR Shipping). Peak complete grant year is 2015 (4 grants) versus a trough of 1 in 2016. By volume, Japan sits between Janibell, Inc. and Jast Company Limited.

Janibell

5
Janicek Picks S R…

5
Japan Blue Energy

5
Japan Chain Termi…

5
Japana

5
Japanese Organiza…

5
Jason Toys &

5
Jast

5
Japan Marine Unit… ◀

5

What this shows Japan holds 5 patents at rank #47,907, shown against the 8 assignees closest to it in grant volume rather than the industry's largest filers.

Companies ranked near Japan

By rank, the assignees closest to #47,907 in granted patent volume.

Leaders in B63B (Ships OR Other Waterborne Vessels)

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

Japan's Innovation Score vs. every tracked assignee

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

22 10th percentile higher than 10% 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 · 2015–2016

Grants by year

Teal-shaded recent years (2020–present) versus the 2015–2019 baseline. Full figures in the table below.

View data table

Japan Marine United Corporation patent grants by year, 2015–2025
Year	Patents Granted	Share of Period
2015	4	80.0%
2016	1	20.0%

Which technologies does Japan Marine United Corporation patent most?

B63B - Ships OR Other Waterborne VESSELS; Equipment FOR Shipping 3

Y02E - Reduction OF Greenhouse GAS [GHG] Emissions, Related TO Energy Generation, Transmission OR Distribution 2

F03D - Wind Motors 2

F05B - Indexing Scheme Relating TO Wind, Spring, Weight, Inertia OR Like Motors, TO Machines OR Engines FOR Liquids Covered BY Subclasses F03b, F03d AND F03g 2

F17C - Vessels FOR Containing OR Storing Compressed, Liquefied OR Solidified GASES; Fixed-capacity GAS-HOLDERS; Filling Vessels With, OR Discharging From Vessels, Compressed, Liquefied, OR Solidified Gases 2

H05B - Electric HEATING; Electric Light Sources NOT Otherwise Provided FOR; Circuit Arrangements FOR Electric Light Sources, IN General 1

B65D - Containers FOR Storage OR Transport OF Articles OR Materials, e.g. Bags, Barrels, Bottles, Boxes, Cans, Cartons, Crates, Drums, Jars, Tanks, Hoppers, Forwarding CONTAINERS; Accessories, Closures, OR Fittings THEREFOR; Packaging ELEMENTS; Packages 1

Top 7 of 7 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

Japan Marine United Corporation's patent record in context - here's where to go next.

Japan Marine United Corporation's lead technology class is B63B (Ships OR Other Waterborne VESSELS; Equipment FOR Shipping), 60% of its portfolio - see every assignee active in that class. Explore B63B
Ranked #47,909 of 49,997 tracked assignees by patent volume - see the full leaderboard. See the ranking
Compare Japan Marine United Corporation against Janibell, Inc., an assignee filing at a similar volume. Compare portfolios
Innovation Score of 22.3/100 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.