Where does Taisei Kako Co., Ltd. rank among US patent assignees?

According to USPTO PatentsView (2015–2025 granted utility patents), Taisei Kako Co., Ltd. ranks #7,938 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 Taisei Kako Co., Ltd. hold?

Taisei Kako Co., Ltd. holds 41 US utility patents granted between 2015 and 2025, spanning 8 technology areas.

What is Taisei Kako Co., Ltd.'s Innovation Score?

Taisei Kako Co., Ltd. has an Innovation Score of 45.5 out of 100 (top 23% of the corpus). This composite metric weighs portfolio volume (40%), grant velocity (20%), technology breadth (25%), and claim depth (15%).

Is Taisei Kako Co., Ltd.'s patent grant rate increasing or decreasing?

Taisei Kako Co., Ltd.'s recent grant velocity is +18% 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 Taisei Kako Co., Ltd.'s patents?

Taisei Kako 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 Taisei Kako 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

Taisei Kako Co., Ltd.

Q: What technology areas does Taisei Kako Co., Ltd. focus on?

Taisei Kako Co., Ltd.'s top technology area is A61M (Devices FOR Introducing Media Into, OR Onto, THE Body ; Devices FOR Transducing Body Media OR FOR Taking Media From THE Body ; Devices FOR Producing OR Ending Sleep OR Stupor) with 9 patents, ranking #775 of 3,490 assignees active in that subclass. Grants appear in 8 CPC subclasses total.

USPTO PatentsView assignee record - 41 granted patents across 8 technology areas, recorded in grant years 2015–2025. 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: A61M (Devices FOR Introducing Media Into, OR Onto, THE Body ; Devices FOR Transducing Body Media OR FOR Taking Media From THE Body ; Devices FOR Producing OR Ending Sleep OR Stupor).

Compiled by PlainPatent · May 15, 2026

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Explore the portfolio See the ranking

The verdict

According to USPTO PatentsView, Taisei ranks #7,938 of 49,997 tracked US assignees by granted-patent volume, with 41 patents across 8 technology areas.

#7,938
of 49,997 US assignees by volume: Top 23%
by Innovation Score (45.5/100): 4.4
avg claims per patent: +18%
grant velocity, last 5 yrs

USPTO PatentsView assignee plate

Corpus R7938 · Foreign Corporation #7,938 · 41 grants

GRANTS-SMALL · UPPER-Q · PHOTO-FINISH · CPC-NARROW · INNOV-PAR · CLAIMS-SPARSE · TYPE-FRNCORP · VEL-UP · BOOK-FULL

GRANTS-SMALL 41 grants
UPPER-Q #7,938/49,997
PHOTO-FINISH Talkdesk
CPC-NARROW A61M · 8 areas
INNOV-PAR 45.5/100
CLAIMS-SPARSE 4.4 claims/avg
TYPE-FRNCORP Foreign Corp
VEL-UP +18% vel
BOOK-FULL 10/10 fields

Nearest grant-volume peer: Talkdesk, 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 Taisei’s 45.5 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 12.9 pts (28%) Velocity 20.0 pts (44%) Breadth 10.0 pts (22%) Claim depth 2.6 pts (6%)

Qualcomm Incorporated · highest

85
Delta (Thailand)… · near

46
Radiation Monitoring… · near

46
Sailpoint · near

46
Sunrex Technology · near

46
Taisei Kako · this assignee

46
3D Lighting… · lowest

7

What this shows Taisei's Innovation Score is 45.5/100 (top 23% 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 Taisei?

Each dot is one of Taisei’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). Taisei’s own 4.4 claims/patent is at or below the 16.2 median for these volume peers. Volume here does not track with deeper claims; several lower-volume peers claim more thoroughly per patent.

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

Where Taisei's grants concentrate

Taisei Kako Co., Ltd. is a focused PatentsView assignee: 8 CPC subclasses with 22% of grants classified under A61M (Devices FOR Introducing Media Into, OR Onto, THE Body ; Devices FOR Transducing Body Media OR FOR Taking Media From THE Body ; Devices FOR Producing OR Ending Sleep OR Stupor). Peak complete grant year is 2024 (10 grants) versus a trough of 1 in 2020. By volume, Taisei sits between THE Prophet Corporation and Topera Inc..

Taisei's three-year grant acceleration

Taisei Kako Co., Ltd. shows 18 grants in 2022–2024 against only 6 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.

THE Prophet

41
THE Provost Fello…

41
Toyocolor

41
TRW Automotive an…

41
Talkdesk

41
Tata Communicatio…

41
Thermo Fisher Sci…

41
Topera

41
Taisei Kako ◀

41

What this shows Taisei holds 41 patents at rank #7,945, shown against the 8 assignees closest to it in grant volume rather than the industry's largest filers.

Companies ranked near Taisei

By rank, the assignees closest to #7,945 in granted patent volume.

Leaders in A61M (Devices FOR Introducing Media Into)

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

Assignees with similar portfolio profiles

Two PlainPatent-derived peer sets for Taisei, neither rank-band nor same-CPC leaders (those blocks stay above). In A61M (Devices FOR Introducing Media Into), Taisei ranks #775 of 3,490 assignees by patent count in that subclass.

Similar innovation score

Nearest assignees by Innovation Score (46 here).

Radiation Monitoring Devices, Inc. 46 Sunrex Technology Corp. 46 Delta Electronics (Thailand) Public Company Limited 46 Sailpoint Technologies, Inc. 46

Taisei's Innovation Score vs. every tracked assignee

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

46 Top 23% higher than 77% 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 · 2015–2025

Grants by year

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

View data table

Taisei Kako Co., Ltd. patent grants by year, 2015–2025
Year	Patents Granted	Share of Period
2015	2	4.9%
2016	4	9.8%
2017	5	12.2%
2018	2	4.9%
2019	4	9.8%
2020	1	2.4%
2021	1	2.4%
2022	1	2.4%
2023	7	17.1%
2024	10	24.4%
2025partial year	4	9.8%

Which technologies does Taisei Kako Co., Ltd. patent most?

A61M - Devices FOR Introducing Media Into, OR Onto, THE Body ; Devices FOR Transducing Body Media OR FOR Taking Media From THE Body ; Devices FOR Producing OR Ending Sleep OR Stupor 9

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 8

A61J - Containers Specially Adapted FOR Medical OR Pharmaceutical PURPOSES; Devices OR Methods Specially Adapted FOR Bringing Pharmaceutical Products Into Particular Physical OR Administering FORMS; Devices FOR Administering Food OR Medicines ORALLY; Baby COMFORTERS; Devices FOR Receiving Spittle 6

A61F - Filters Implantable Into Blood VESSELS; PROSTHESES; Devices Providing Patency TO, OR Preventing Collapsing OF, Tubular Structures OF THE Body, e.g. STENTS; Orthopaedic, Nursing OR Contraceptive DEVICES; FOMENTATION; Treatment OR Protection OF Eyes OR EARS; Bandages, Dressings OR Absorbent PADS; Firs 2

B01L - Chemical OR Physical Laboratory Apparatus FOR General USE 2

G01F - Measuring Volume, Volume Flow, Mass Flow OR Liquid LEVEL; Metering BY Volume 2

A61B - DIAGNOSIS; SURGERY; Identification 1

G01N - Investigating OR Analysing Materials BY Determining Their Chemical OR Physical Properties 1

Top 8 of 8 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

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

Taisei Kako Co., Ltd.'s lead technology class is A61M (Devices FOR Introducing Media Into, OR Onto, THE Body ; Devices FOR Transducing Body Media OR FOR Taking Media From THE Body ; Devices FOR Producing OR Ending Sleep OR Stupor), 22% of its portfolio - see every assignee active in that class. Explore A61M
Ranked #7,938 of 49,997 tracked assignees by patent volume - see the full leaderboard. See the ranking
Compare Taisei Kako Co., Ltd. against THE Prophet Corporation, an assignee filing at a similar volume. Compare portfolios
Innovation Score of 45.5/100 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.