Where does Kowa Company, Ltd. rank among US patent assignees?

According to USPTO PatentsView (2015–2025 granted utility patents), Kowa Company, Ltd. ranks #2,743 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 Kowa Company, Ltd. hold?

Kowa Company, Ltd. holds 141 US utility patents granted between 2015 and 2025, spanning 49 technology areas.

What is Kowa Company, Ltd.'s Innovation Score?

Kowa Company, Ltd. has an Innovation Score of 53.7 out of 100 (top 9% of the corpus). This composite metric weighs portfolio volume (40%), grant velocity (20%), technology breadth (25%), and claim depth (15%).

What technology areas does Kowa Company, Ltd. focus on?

Kowa Company, Ltd.'s top technology area is A61P (Specific Therapeutic Activity OF Chemical Compounds OR Medicinal Preparations) with 39 patents, ranking #473 of 6,058 assignees active in that subclass. Grants appear in 49 CPC subclasses total.

Is Kowa Company, Ltd.'s patent grant rate increasing or decreasing?

Kowa Company, Ltd.'s recent grant velocity is -25% 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 Kowa Company, Ltd.'s patents?

Kowa Company, Ltd.'s patents average 9.9 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 Kowa Company, 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

Kowa Company, Ltd.

USPTO PatentsView assignee record - 141 granted patents across 49 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: A61P (Specific Therapeutic Activity OF Chemical Compounds OR Medicinal Preparations).

Compiled by PlainPatent · May 15, 2026

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The verdict

According to USPTO PatentsView, Kowa ranks #2,743 of 49,997 tracked US assignees by granted-patent volume, with 141 patents across 49 technology areas.

#2,743
of 49,997 US assignees by volume: Top 9%
by Innovation Score (53.7/100): 9.9
avg claims per patent: -25%
grant velocity, last 5 yrs

USPTO PatentsView assignee plate

Corpus R2743 · Foreign Corporation #2,743 · 141 grants

GRANTS-MID · TOP-DECILE · PHOTO-FINISH · CPC-WIDE · INNOV-PAR · CLAIMS-PAR · TYPE-FRNCORP · VEL-DOWN · BOOK-FULL

GRANTS-MID 141 grants
TOP-DECILE #2,743/49,997
PHOTO-FINISH Dresser-rand
CPC-WIDE A61P · 49 areas
INNOV-PAR 53.7/100
CLAIMS-PAR 9.9 claims/avg
TYPE-FRNCORP Foreign Corp
VEL-DOWN -25% vel
BOOK-FULL 10/10 fields

Nearest grant-volume peer: Dresser-rand Company (±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 Kowa’s 53.7 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 17.1 pts (32%) Velocity 5.9 pts (11%) Breadth 24.7 pts (46%) Claim depth 6.0 pts (11%)

Qualcomm Incorporated · highest

85
Coway · near

54
Databricks · near

54
Kowa · this assignee

54
Shifamed Holdings · near

54
UCB Biopharma SRL · near

54
3D Lighting… · lowest

7

What this shows Kowa's Innovation Score is 53.7/100 (top 9% 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 Kowa?

Each dot is one of Kowa’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). Kowa’s own 9.9 claims/patent is at or below the 15.9 median for these volume peers. Volume here does not track with deeper claims; several lower-volume peers claim more thoroughly per patent.

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

Where Kowa's grants concentrate

Kowa Company, Ltd. is a focused PatentsView assignee: 49 CPC subclasses with 27.7% of grants classified under A61P (Specific Therapeutic Activity OF Chemical Compounds OR Medicinal Preparations). Peak complete grant year is 2019 (19 grants) versus a trough of 9 in 2018. By volume, Kowa sits between Dresser-rand Company and Optis Wireless Technology, LLC.

Kowa's three-year grant acceleration

From 2019–2021 to 2022–2024, Kowa Company, Ltd. moved from 41 to 36 grants (0.88x the prior three-year total, a multiple, not a CAGR). Among 3,296 tracked assignees with ≥100 grants and ≥20 prior-period grants, that multiple ranks #1,565. See the growth leaderboard.

Dresser-rand

141
Dynaenergetics Eu…

141
International Tru…

141
Kemet

141
Laird

141
Marathon Petroleum

141
Nxstage Medical

141
Optis Wireless Te…

141
Kowa ◀

141

What this shows Kowa holds 141 patents at rank #2,743, shown against the 8 assignees closest to it in grant volume rather than the industry's largest filers.

Companies ranked near Kowa

By rank, the assignees closest to #2,743 in granted patent volume.

Leaders in A61P (Specific Therapeutic Activity OF Chemical Compounds OR Me…)

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

Assignees with similar portfolio profiles

Two PlainPatent-derived peer sets for Kowa, neither rank-band nor same-CPC leaders (those blocks stay above). In A61P (Specific Therapeutic Activity OF Chemical Compounds OR Me…), Kowa ranks #473 of 6,058 assignees by patent count in that subclass.

Similar innovation score

Nearest assignees by Innovation Score (54 here).

Coway Co., Ltd. 54 UCB Biopharma SRL 54 Databricks, Inc. 54 Shifamed Holdings, LLC 54

Similar claim depth

Nearest assignees by average claims per patent (9.9 here).

Peking University Shenzhen Graduate School 9.9 avg Tamron Co., Ltd. 9.9 avg Intellihot, Inc. 9.9 avg National Taiwan University of Science and Technology 9.9 avg

Kowa's Innovation Score vs. every tracked assignee

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

54 Top 9% higher than 91% 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

Kowa Company, Ltd. patent grants by year, 2015–2025
Year	Patents Granted	Share of Period
2015	16	11.3%
2016	16	11.3%
2017	17	12.1%
2018	9	6.4%
2019	19	13.5%
2020	12	8.5%
2021	10	7.1%
2022	14	9.9%
2023	12	8.5%
2024	10	7.1%
2025partial year	6	4.3%

Which technologies does Kowa Company, Ltd. patent most?

A61P - Specific Therapeutic Activity OF Chemical Compounds OR Medicinal Preparations 39

A61K - Preparations FOR Medical, Dental OR Toiletry Purposes 38

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 35

A61B - DIAGNOSIS; SURGERY; Identification 31

G06T - Image Data Processing OR Generation, IN General 16

H04N - Pictorial Communication, e.g. Television 10

A41D - OUTERWEAR; Protective GARMENTS; Accessories 9

C07D - Heterocyclic Compounds 9

D10B - Indexing Scheme Associated With Sublasses OF Section D, Relating TO Textiles 8

D04B - Knitting 7

G02B - Optical Elements, Systems OR Apparatus 7

G03B - Apparatus OR Arrangements FOR Taking Photographs OR FOR Projecting OR Viewing THEM; Apparatus OR Arrangements Employing Analogous Techniques Using Waves Other Than Optical WAVES; Accessories Therefor 7

A01K - Animal HUSBANDRY; AVICULTURE; APICULTURE; PISCICULTURE; FISHING; Rearing OR Breeding Animals, NOT Otherwise Provided FOR; NEW Breeds OF Animals 6

G02C - SPECTACLES; Sunglasses OR Goggles Insofar AS They Have THE Same Features AS SPECTACLES; Contact Lenses 6

D01B - Mechanical Treatment OF Natural Fibrous OR Filamentary Material TO Obtain Fibres OF Filaments, e.g. FOR Spinning 5

Top 15 of 49 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

Kowa Company, Ltd.'s patent record in context - here's where to go next.

Kowa Company, Ltd.'s lead technology class is A61P (Specific Therapeutic Activity OF Chemical Compounds OR Medicinal Preparations), 27.7% of its portfolio - see every assignee active in that class. Explore A61P
Ranked #2,743 of 49,997 tracked assignees by patent volume - see the full leaderboard. See the ranking
Compare Kowa Company, Ltd. against Dresser-rand Company, an assignee filing at a similar volume. Compare portfolios
Innovation Score of 53.7/100 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.