USPTO 2015–2025 USPTO PatentsView Foreign Corporation

Chugai Seiyaku Kabushiki Kaisha

USPTO PatentsView assignee record - 325 granted patents across 31 technology areas, active 2015–2025. Filing-trend and competitive-moat analysis cross-referenced to USPTO Patent Public Search. Primary class: C07K (PEPTIDES).

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

Explore the portfolio See the ranking

325

Total patents granted

CPC technology areas

17.4

Avg claims per patent

+62%

5-year filing velocity

The verdict

Chugai holds 325 US patents across 31 technology areas, rank #1,303 of 50,000 tracked assignees.

#1,303
of 50,000 US assignees by volume: Top 4%
by Innovation Score (58.5/100): 17.4
avg claims per patent: +62%
filing velocity, last 5 yrs

Portfolio overview

Chugai Seiyaku Kabushiki Kaisha has been granted 325 US utility patents between 2015 and 2025, placing Chugai Seiyaku Kabushiki Kaisha at rank #1,303 across all assignees tracked by PlainPatent. This portfolio spans 31 distinct Cooperative Patent Classification (CPC) subclasses, averaging 17.4 claims per patent with primary concentration in C07K (PEPTIDES). As a Foreign Corporation, Chugai Seiyaku Kabushiki Kaisha is one of the more focused assignees in the PatentsView dataset. By volume, Chugai sits between Ningde Amperex Technology Limited (326 patents, rank #1,299) and Express Scripts Strategic Development, Inc. (324 patents, rank #1,307) - the closest US assignees by grant volume. The composite Innovation Score of 58.5/100 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 201 grants, compared with 124 in the 2015–2019 window, a +62% shift in five-year velocity. An acceleration of this magnitude signals aggressive R&D investment and expanding technical ambition. 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. Chugai Seiyaku Kabushiki Kaisha's 17.4 average claims per patent sits within the typical range for solid legal coverage without excessive prosecution cost, while a multi-domain presence across 31 subclasses balances depth with breadth. Combined with portfolio volume, these signals let analysts, investors, and licensing professionals benchmark Chugai Seiyaku Kabushiki Kaisha against peers pursuing similar technology classes.

Ningde Amperex Te…

326
SICK

326
Sumitomo Riko

326
University OF Con…

326
Continental Reife…

325
Sony Interactive…

325
Chugai Seiyaku ◀

325
Ablic

324
Express Scripts S…

324

What this shows Chugai holds 325 patents at rank #1,303, shown against the 8 assignees closest to it in grant volume rather than the industry's largest filers.

Companies ranked near Chugai

By rank, the assignees closest to #1,303 in granted patent volume.

Leaders in C07K (Peptides)

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

Chugai's Innovation Score vs. every tracked assignee

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

59 Top 4% higher than 96% 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

Chugai Seiyaku Kabushiki Kaisha patent grants by year, 2015–2025
Year	Patents Granted	Share of Period
2015	27	8.3%
2016	27	8.3%
2017	29	8.9%
2018	21	6.5%
2019	20	6.2%
2020	32	9.8%
2021	30	9.2%
2022	28	8.6%
2023	46	14.2%
2024	30	9.2%
2025	35	10.8%

Which technologies does Chugai Seiyaku Kabushiki Kaisha patent most?

C07K - PEPTIDES 238

A61P - SPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS 221

A61K - PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES 202

G01N - INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES 85

C12N - MICROORGANISMS OR ENZYMES; COMPOSITIONS THEREOF; PROPAGATING, PRESERVING, OR MAINTAINING MICROORGANISMS; MUTATION OR GENETIC ENGINEERING; CULTURE MEDIA 62

C07D - HETEROCYCLIC COMPOUNDS 36

C12P - FERMENTATION OR ENZYME-USING PROCESSES TO SYNTHESISE A DESIRED CHEMICAL COMPOUND OR COMPOSITION OR TO SEPARATE OPTICAL ISOMERS FROM A RACEMIC MIXTURE 23

C12Q - MEASURING OR TESTING PROCESSES INVOLVING ENZYMES, NUCLEIC ACIDS OR MICROORGANISMS ; COMPOSITIONS OR TEST PAPERS THEREFOR; PROCESSES OF PREPARING SUCH COMPOSITIONS; CONDITION-RESPONSIVE CONTROL IN MICROBIOLOGICAL OR ENZYMOLOGICAL PROCESSES 22

Y02A - TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE 16

Y02P - CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS 15

C40B - COMBINATORIAL CHEMISTRY; LIBRARIES, e.g. CHEMICAL LIBRARIES 14

C12Y - ENZYMES 13

C07C - ACYCLIC OR CARBOCYCLIC COMPOUNDS 9

A01K - ANIMAL HUSBANDRY; AVICULTURE; APICULTURE; PISCICULTURE; FISHING; REARING OR BREEDING ANIMALS, NOT OTHERWISE PROVIDED FOR; NEW BREEDS OF ANIMALS 8

C07H - SUGARS; DERIVATIVES THEREOF; NUCLEOSIDES; NUCLEOTIDES; NUCLEIC ACIDS 7

Top 15 of 31 technology areas

Patent Moat Analysis

Portfolio Volume Moderate

Tech Breadth Multi-domain

Claim Depth Standard

Velocity Accelerating

Where it ranks

Overall rank by patents

#1,303

Across all tracked assignees

Innovation Score

58.5 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 Chugai Seiyaku Kabushiki Kaisha hold?

Chugai Seiyaku Kabushiki Kaisha holds 325 US granted patents filed between 2015 and 2025, spanning 31 technology areas.

What is Chugai Seiyaku Kabushiki Kaisha's Innovation Score?

Chugai Seiyaku Kabushiki Kaisha has an Innovation Score of 58.5 out of 100. This composite metric weighs portfolio volume (40%), filing velocity (20%), technology breadth (25%), and claim depth (15%).

What technology areas does Chugai Seiyaku Kabushiki Kaisha focus on?

Chugai Seiyaku Kabushiki Kaisha's top technology area is C07K (PEPTIDES) with 238 patents. The company has filed patents in 31 CPC subclasses total.

Is Chugai Seiyaku Kabushiki Kaisha's patent filing rate increasing or decreasing?

Chugai Seiyaku Kabushiki Kaisha's recent filing velocity is +62% compared to the prior five-year period. This indicates accelerating innovation.

What does claim depth mean for Chugai Seiyaku Kabushiki Kaisha's patents?

Chugai Seiyaku Kabushiki Kaisha's patents average 17.4 claims each. This falls within the standard range, providing solid legal coverage.

How is the Chugai Seiyaku Kabushiki Kaisha 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

Chugai's 325 grants land it in the top 4% 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 - Chugai ranks #1,303 of 50,000. Top 50 holders
Most of this portfolio concentrates in C07K - see who else leads that technology area. C07K 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.