Where does Mitani Valve Co., Ltd. rank among US patent assignees?

According to USPTO PatentsView (2015–2025 granted utility patents), Mitani Valve Co., Ltd. ranks #36,519 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 Mitani Valve Co., Ltd. hold?

Mitani Valve Co., Ltd. holds 7 US utility patents granted between 2015 and 2021, spanning 1 technology areas.

What is Mitani Valve Co., Ltd.'s Innovation Score?

Mitani Valve Co., Ltd. has an Innovation Score of 13.4 out of 100 (2nd percentile of the corpus). This composite metric weighs portfolio volume (40%), grant velocity (20%), technology breadth (25%), and claim depth (15%).

Is Mitani Valve Co., Ltd.'s patent grant rate increasing or decreasing?

Mitani Valve Co., Ltd.'s recent grant velocity is +33% compared to the prior five-year period (grant years, not application filing dates). The company is maintaining or growing its granted-patent output.

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

Mitani Valve Co., Ltd.'s patents average 4.4 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 Mitani Valve 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

Mitani Valve Co., Ltd.

Q: What technology areas does Mitani Valve Co., Ltd. focus on?

Mitani Valve Co., Ltd.'s top technology area is 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) with 3 patents, ranking #1,165 of 3,365 assignees active in that subclass. Grants appear in 1 CPC subclasses total.

USPTO PatentsView assignee record - 7 granted patents across 1 technology areas, recorded in grant years 2015–2021. 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: 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 F).

Compiled by PlainPatent · May 15, 2026

RSS updates for this company

Explore the portfolio See the ranking

The verdict

According to USPTO PatentsView, Mitani ranks #36,519 of 49,997 tracked US assignees by granted-patent volume, with 7 patents across 1 technology areas.

#36,519
of 49,997 US assignees by volume: 2nd percentile
by Innovation Score (13.4/100): 4.4
avg claims per patent: +33%
grant velocity, last 5 yrs

USPTO PatentsView assignee plate

Corpus R36519 · Foreign Corporation #36,519 · 7 grants

GRANTS-MICRO · MID-PACK · PHOTO-FINISH · CPC-NARROW · INNOV-LOW · CLAIMS-SPARSE · TYPE-FRNCORP · VEL-UP · BOOK-FULL

GRANTS-MICRO 7 grants
MID-PACK #36,519/49,997
PHOTO-FINISH Minova International
CPC-NARROW B65D · 1 areas
INNOV-LOW 13.4/100
CLAIMS-SPARSE 4.4 claims/avg
TYPE-FRNCORP Foreign Corp
VEL-UP +33% vel
BOOK-FULL 10/10 fields

Nearest grant-volume peer: Minova International Limited (±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 Mitani’s 13.4 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 7.2 pts (54%) Velocity 0.0 pts (0%) Breadth 3.5 pts (26%) Claim depth 2.7 pts (20%)

Qualcomm Incorporated · highest

85
Porter Classic · near

13
First Quality… · near

13
Mitani Valve · this assignee

13
Contemporary… · near

13
Mpow Technology · near

13
3D Lighting… · lowest

7

What this shows Mitani's Innovation Score is 13.4/100 (2nd 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 Mitani?

Each dot is one of Mitani’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). Mitani’s own 4.4 claims/patent is at or below the 10.7 median for these volume peers. Volume here does not track with deeper claims; several lower-volume peers claim more thoroughly per patent.

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

Where Mitani's grants concentrate

Mitani Valve Co., Ltd. is a focused PatentsView assignee: 1 CPC subclasses with 42.9% of grants classified under 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 F). Peak complete grant year is 2021 (3 grants) versus a trough of 1 in 2015. By volume, Mitani sits between Minova International Limited and MMI Semiconductor Co., Ltd..

Minova Internatio…

7
Mintek

7
Minute KEY

7
Mission Secure

7
Mitsubishi Electr…

7
Mitsui Chemicals…

7
MK Electron

7
MMI Semiconductor

7
Mitani Valve ◀

7

What this shows Mitani holds 7 patents at rank #36,402, shown against the 8 assignees closest to it in grant volume rather than the industry's largest filers.

Companies ranked near Mitani

By rank, the assignees closest to #36,402 in granted patent volume.

Leaders in B65D (Containers FOR Storage OR Transport OF Articles OR Materials)

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

Assignees with similar portfolio profiles

Two PlainPatent-derived peer sets for Mitani, neither rank-band nor same-CPC leaders (those blocks stay above). In B65D (Containers FOR Storage OR Transport OF Articles OR Materials), Mitani ranks #1,165 of 3,365 assignees by patent count in that subclass.

Similar innovation score

Nearest assignees by Innovation Score (13 here).

Contemporary Amperex Future Energy Research Institute (Shanghai) Limited 13 First Quality Packaging Solutions, LLC 13 Porter Classic Inc. 13 Mpow Technology Co., Limited 13

Mitani's Innovation Score vs. every tracked assignee

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

13 2nd percentile higher than 2% 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 · 2015–2021

Grants by year

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

View data table

Mitani Valve Co., Ltd. patent grants by year, 2015–2025
Year	Patents Granted	Share of Period
2015	1	14.3%
2017	1	14.3%
2018	1	14.3%
2020	1	14.3%
2021	3	42.9%

Which technologies does Mitani Valve Co., Ltd. patent most?

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 3

Top 1 of 1 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

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

Mitani Valve Co., Ltd.'s lead technology class is 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 F), 42.9% of its portfolio - see every assignee active in that class. Explore B65D
Ranked #36,519 of 49,997 tracked assignees by patent volume - see the full leaderboard. See the ranking
Compare Mitani Valve Co., Ltd. against Minova International Limited, an assignee filing at a similar volume. Compare portfolios
Innovation Score of 13.4/100 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.