USPTO 2015–2025 USPTO PatentsView Foreign Corporation

KOWA Company, Ltd.

USPTO PatentsView assignee record - 141 granted patents across 49 technology areas, active 2015–2025. Filing-trend and competitive-moat analysis cross-referenced to USPTO Patent Public Search. Primary class: A61P (SPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS).

Compiled byPlainPatent Editorial, US Patent Intelligence Editorial Team · May 15, 2026

Explore the portfolio See the ranking

141

Total patents granted

CPC technology areas

9.9

Avg claims per patent

-17%

5-year filing velocity

The verdict

KOWA holds 141 US patents across 49 technology areas, rank #2,743 of 50,000 tracked assignees.

#2,743
of 50,000 US assignees by volume: Top 9%
by Innovation Score (53.7/100): 9.9
avg claims per patent: -17%
filing velocity, last 5 yrs

Portfolio overview

KOWA Company, Ltd. has been granted 141 US utility patents between 2015 and 2025, placing KOWA Company, Ltd. at rank #2,743 across all assignees tracked by PlainPatent. This portfolio spans 49 distinct Cooperative Patent Classification (CPC) subclasses, averaging 9.9 claims per patent with primary concentration in A61P (SPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS). As a Foreign Corporation, KOWA Company, Ltd. is one of the more focused assignees in the PatentsView dataset. By volume, KOWA sits between Dresser-rand Company (141 patents, rank #2,739) and Optis Wireless Technology, Llc (141 patents, rank #2,747) - the closest US assignees by grant volume. The composite Innovation Score of 53.7/100 blends portfolio volume, filing velocity, technology breadth, and claim depth into a single comparable measure drawn directly from USPTO PatentsView records.

Filing cadence tells the strategic story. Between 2020 and 2025 the company received 64 grants, compared with 77 in the 2015–2019 window, a -17% shift in five-year velocity. A cooling filing rate may reflect portfolio consolidation, shifting priorities, or reduced R&D throughput. The Foreign Corporation classification further shapes interpretation, since corporate, government, and individual filers pursue patents for materially different reasons.

Claim depth and technology breadth together indicate competitive posture. KOWA Company, Ltd.'s 9.9 average claims per patent suggests focused, narrowly drawn claims typical of single-invention filings, while a multi-domain presence across 49 subclasses balances depth with breadth. Combined with portfolio volume, these signals let analysts, investors, and licensing professionals benchmark KOWA Company, Ltd. against peers pursuing similar technology classes.

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.

KOWA's Innovation Score vs. every tracked assignee

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

54 Top 9% higher than 91% of 50,000 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%
2025	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

Patent Moat Analysis

Portfolio Volume Moderate

Tech Breadth Multi-domain

Claim Depth Simple

Velocity Declining

Where it ranks

Overall rank by patents

#2,743

Across all tracked assignees

Innovation Score

53.7 out of 100

View all rankings →

Data Source

USPTO PatentsView, US granted patents 2015–2025

How is Innovation Score calculated?

Frequently Asked Questions

How many patents does KOWA Company, Ltd. hold?

KOWA Company, Ltd. holds 141 US granted patents filed 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. This composite metric weighs portfolio volume (40%), filing 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. The company has filed patents in 49 CPC subclasses total.

Is KOWA Company, Ltd.'s patent filing rate increasing or decreasing?

KOWA Company, Ltd.'s recent filing velocity is -17% compared to the prior five-year period. Filing 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 relatively simple claim structure, typical for focused inventions.

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.

How to use this portfolio

KOWA's 141 grants land it in the top 9% by Innovation Score, but volume alone doesn't tell you where the strength sits.

Read that count against the largest US assignees before treating it as dominance - KOWA ranks #2,743 of 50,000. Top 50 holders
Most of this portfolio concentrates in A61P - see who else leads that technology area. A61P leaders
Check what the four-part Innovation Score actually rewards before comparing it to another company. How the score works

Patent counts and the Innovation Score measure patenting activity, not commercial success or the legal strength of any patent. Many patents are filed defensively. Verify the status of an individual patent against official USPTO records.

Data sourced from USPTO PatentsView - official U.S. government patent data. See our methodology for computation details. Retrieved and formatted by PlainPatent Editorial

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 byPlainPatent Editorial, US Patent Intelligence Editorial Team · 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.