Where does Kokubo & Co., Ltd. rank among US patent assignees?

According to USPTO PatentsView (2015–2025 granted utility patents), Kokubo & Co., Ltd. ranks #21,348 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 Kokubo & Co., Ltd. hold?

Kokubo & Co., Ltd. holds 13 US utility patents granted between 2018 and 2022, spanning 0 technology areas.

What is Kokubo & Co., Ltd.'s Innovation Score?

Kokubo & Co., Ltd. has an Innovation Score of 10.4 out of 100 (1st 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 Kokubo & Co., Ltd. focus on?

Kokubo & Co., Ltd. holds grants across 0 technology areas classified under the Cooperative Patent Classification system.

Is Kokubo & Co., Ltd.'s patent grant rate increasing or decreasing?

Kokubo & Co., Ltd.'s recent grant velocity is +450% compared to the prior five-year period (grant years, not application filing dates). This indicates accelerating grant output.

What does claim depth mean for Kokubo & Co., Ltd.'s patents?

Kokubo & Co., Ltd.'s patents average 1.0 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 Kokubo & 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

Kokubo & Co., Ltd.

USPTO PatentsView assignee record - 13 granted patents across 0 technology areas, recorded in grant years 2018–2022. Grant-trend analysis is cross-referenced to USPTO Patent Public Search; it does not measure application filings, current R&D, or legal strength.

Compiled by PlainPatent · May 15, 2026

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The verdict

According to USPTO PatentsView, Kokubo ranks #21,348 of 49,997 tracked US assignees by granted-patent volume, with 13 patents across 0 technology areas.

#21,348
of 49,997 US assignees by volume: 1st percentile
by Innovation Score (10.4/100): 1.0
avg claims per patent: +450%
grant velocity, last 5 yrs

USPTO PatentsView assignee plate

Corpus R21348 · Foreign Corporation #21,348 · 13 grants

GRANTS-MICRO · MID-PACK · PHOTO-FINISH · CPC-UNK · INNOV-LOW · CLAIMS-SPARSE · TYPE-FRNCORP · VEL-SURGE · BOOK-RICH

GRANTS-MICRO 13 grants
MID-PACK #21,348/49,997
PHOTO-FINISH Kiran Jewels
CPC-UNK CPC blank
INNOV-LOW 10.4/100
CLAIMS-SPARSE 1.0 claims/avg
TYPE-FRNCORP Foreign Corp
VEL-SURGE +450% vel
BOOK-RICH 9/10 fields

Nearest grant-volume peer: Kiran Jewels 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 Kokubo’s 10.4 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 9.1 pts (88%) Velocity 0.7 pts (7%) Breadth 0.0 pts (0%) Claim depth 0.6 pts (6%)

Qualcomm Incorporated · highest

85
Kokubo & · this assignee

10
3D Lighting… · lowest

7

What this shows Kokubo's Innovation Score is 10.4/100 (1st 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 Kokubo?

Each dot is one of Kokubo’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). Kokubo’s own 1.0 claims/patent is at or below the 7.9 median for these volume peers. Volume here does not track with deeper claims; several lower-volume peers claim more thoroughly per patent.

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

Where Kokubo's grants concentrate

Kokubo & Co., Ltd. is a focused PatentsView assignee: 0 CPC subclasses . Peak complete grant year is 2020 (6 grants) versus a trough of 1 in 2022. By volume, Kokubo sits between Kiran Jewels Inc. and KTL International Co., Ltd..

Kokubo's three-year grant acceleration

Kokubo & Co., Ltd. shows 1 grants in 2022–2024 against only 10 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.

Kiran Jewels

13
Kjellberg-stiftung

13
Kohler Interiors…

13
Kohoku Kogyo

13
Koofy Innovation

13
Koplar Interactiv…

13
Kromek Group

13
KTL International

13
Kokubo & ◀

13

What this shows Kokubo holds 13 patents at rank #21,335, shown against the 8 assignees closest to it in grant volume rather than the industry's largest filers.

Companies ranked near Kokubo

By rank, the assignees closest to #21,335 in granted patent volume.

Kokubo's Innovation Score vs. every tracked assignee

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

10 1st percentile higher than 1% 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 · 2018–2022

Grants by year

Teal-shaded recent years (2020–present) versus the 2018–2019 baseline. Full figures in the table below.

View data table

Kokubo & Co., Ltd. patent grants by year, 2015–2025
Year	Patents Granted	Share of Period
2018	2	15.4%
2020	6	46.2%
2021	4	30.8%
2022	1	7.7%

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

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

Ranked #21,348 of 49,997 tracked assignees by patent volume - see the full leaderboard. See the ranking
Compare Kokubo & Co., Ltd. against Kiran Jewels Inc., an assignee filing at a similar volume. Compare portfolios
Innovation Score of 10.4/100 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.