USPTO 2015–2025 USPTO PatentsView Foreign Corporation

Kyowa Hakko Kirin Co., Ltd.

USPTO PatentsView assignee record - 112 granted patents across 23 technology areas, active 2015–2021. 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

112

Total patents granted

CPC technology areas

12.8

Avg claims per patent

-97%

5-year filing velocity

The verdict

Kyowa holds 112 US patents across 23 technology areas, rank #3,328 of 50,000 tracked assignees.

#3,328
of 50,000 US assignees by volume: Top 34%
by Innovation Score (40.9/100): 12.8
avg claims per patent: -97%
filing velocity, last 5 yrs

Portfolio overview

Kyowa Hakko Kirin Co., Ltd. has been granted 112 US utility patents between 2015 and 2021, placing Kyowa Hakko Kirin Co., Ltd. at rank #3,328 across all assignees tracked by PlainPatent. This portfolio spans 23 distinct Cooperative Patent Classification (CPC) subclasses, averaging 12.8 claims per patent with primary concentration in A61P (SPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS). As a Foreign Corporation, Kyowa Hakko Kirin Co., Ltd. is one of the more focused assignees in the PatentsView dataset. By volume, Kyowa sits between Fred Hutchinson Cancer Research Center (112 patents, rank #3,324) and Queen's University At Kingston (112 patents, rank #3,332) - the closest US assignees by grant volume. The composite Innovation Score of 40.9/100 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 3 grants, compared with 109 in the 2015–2019 window, a -97% 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. Kyowa Hakko Kirin Co., Ltd.'s 12.8 average claims per patent sits within the typical range for solid legal coverage without excessive prosecution cost, while a multi-domain presence across 23 subclasses balances depth with breadth. Combined with portfolio volume, these signals let analysts, investors, and licensing professionals benchmark Kyowa Hakko Kirin Co., Ltd. against peers pursuing similar technology classes.

Fred Hutchinson C…

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Queen's Universit…

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Kyowa Hakko Kirin ◀

112

What this shows Kyowa holds 112 patents at rank #3,328, shown against the 8 assignees closest to it in grant volume rather than the industry's largest filers.

Companies ranked near Kyowa

By rank, the assignees closest to #3,328 in granted patent volume.

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

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

Kyowa's Innovation Score vs. every tracked assignee

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

41 Top 34% higher than 66% 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 · 2015–2021

Grants by year

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

View data table

Kyowa Hakko Kirin Co., Ltd. patent grants by year, 2015–2025
Year	Patents Granted	Share of Period
2015	29	25.9%
2016	22	19.6%
2017	27	24.1%
2018	15	13.4%
2019	16	14.3%
2020	2	1.8%
2021	1	0.9%

Which technologies does Kyowa Hakko Kirin Co., Ltd. patent most?

A61P - SPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS 83

A61K - PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES 81

C07K - PEPTIDES 73

C12N - MICROORGANISMS OR ENZYMES; COMPOSITIONS THEREOF; PROPAGATING, PRESERVING, OR MAINTAINING MICROORGANISMS; MUTATION OR GENETIC ENGINEERING; CULTURE MEDIA 37

C07D - HETEROCYCLIC COMPOUNDS 24

G01N - INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES 19

C12P - FERMENTATION OR ENZYME-USING PROCESSES TO SYNTHESISE A DESIRED CHEMICAL COMPOUND OR COMPOSITION OR TO SEPARATE OPTICAL ISOMERS FROM A RACEMIC MIXTURE 14

C07C - ACYCLIC OR CARBOCYCLIC COMPOUNDS 7

A01K - ANIMAL HUSBANDRY; AVICULTURE; APICULTURE; PISCICULTURE; FISHING; REARING OR BREEDING ANIMALS, NOT OTHERWISE PROVIDED FOR; NEW BREEDS OF ANIMALS 5

C12R - INDEXING SCHEME ASSOCIATED WITH SUBCLASSES C12C - C12Q, RELATING TO MICROORGANISMS 4

Y02A - TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE 4

C12Y - ENZYMES 3

C07H - SUGARS; DERIVATIVES THEREOF; NUCLEOSIDES; NUCLEOTIDES; NUCLEIC ACIDS 3

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 2

B01J - CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS 2

Top 15 of 23 technology areas

Patent Moat Analysis

Portfolio Volume Moderate

Tech Breadth Multi-domain

Claim Depth Standard

Velocity Declining

Where it ranks

Overall rank by patents

#3,328

Across all tracked assignees

Innovation Score

40.9 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 Kyowa Hakko Kirin Co., Ltd. hold?

Kyowa Hakko Kirin Co., Ltd. holds 112 US granted patents filed between 2015 and 2021, spanning 23 technology areas.

What is Kyowa Hakko Kirin Co., Ltd.'s Innovation Score?

Kyowa Hakko Kirin Co., Ltd. has an Innovation Score of 40.9 out of 100. This composite metric weighs portfolio volume (40%), filing velocity (20%), technology breadth (25%), and claim depth (15%).

What technology areas does Kyowa Hakko Kirin Co., Ltd. focus on?

Kyowa Hakko Kirin Co., Ltd.'s top technology area is A61P (SPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS) with 83 patents. The company has filed patents in 23 CPC subclasses total.

Is Kyowa Hakko Kirin Co., Ltd.'s patent filing rate increasing or decreasing?

Kyowa Hakko Kirin Co., Ltd.'s recent filing velocity is -97% compared to the prior five-year period. Filing activity has slowed relative to earlier years.

What does claim depth mean for Kyowa Hakko Kirin Co., Ltd.'s patents?

Kyowa Hakko Kirin Co., Ltd.'s patents average 12.8 claims each. This falls within the standard range, providing solid legal coverage.

How is the Kyowa Hakko Kirin 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.

How to use this portfolio

Kyowa's 112 grants land it in the top 34% 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 - Kyowa ranks #3,328 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.