Where does Otsuka Pharmaceutical Co., Ltd. rank among US patent assignees?

According to USPTO PatentsView (2015–2025 granted utility patents), Otsuka Pharmaceutical Co., Ltd. ranks #1,526 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 Otsuka Pharmaceutical Co., Ltd. hold?

Otsuka Pharmaceutical Co., Ltd. holds 273 US utility patents granted between 2015 and 2025, spanning 73 technology areas.

What is Otsuka Pharmaceutical Co., Ltd.'s Innovation Score?

Otsuka Pharmaceutical Co., Ltd. has an Innovation Score of 62.4 out of 100 (top 2% of the corpus). This composite metric weighs portfolio volume (40%), grant velocity (20%), technology breadth (25%), and claim depth (15%).

Is Otsuka Pharmaceutical Co., Ltd.'s patent grant rate increasing or decreasing?

Otsuka Pharmaceutical Co., Ltd.'s recent grant velocity is -15% 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 Otsuka Pharmaceutical Co., Ltd.'s patents?

Otsuka Pharmaceutical Co., Ltd.'s patents average 14.6 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 Otsuka Pharmaceutical 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

Otsuka Pharmaceutical Co., Ltd.

Q: What technology areas does Otsuka Pharmaceutical Co., Ltd. focus on?

Otsuka Pharmaceutical Co., Ltd.'s top technology area is A61P (Specific Therapeutic Activity OF Chemical Compounds OR Medicinal Preparations) with 171 patents. Grants appear in 73 CPC subclasses total.

USPTO PatentsView assignee record - 273 granted patents across 73 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, Otsuka ranks #1,526 of 49,997 tracked US assignees by granted-patent volume, with 273 patents across 73 technology areas.

#1,526
of 49,997 US assignees by volume: Top 2%
by Innovation Score (62.4/100): 14.6
avg claims per patent: -15%
grant velocity, last 5 yrs

USPTO PatentsView assignee plate

Corpus R1526 · Foreign Corporation #1,526 · 273 grants

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

GRANTS-MID 273 grants
TOP-DECILE #1,526/49,997
PHOTO-FINISH Denso TEN
CPC-WIDE A61P · 73 areas
INNOV-STRONG 62.4/100
CLAIMS-RICH 14.6 claims/avg
TYPE-FRNCORP Foreign Corp
VEL-DOWN -15% vel
BOOK-FULL 10/10 fields

Nearest grant-volume peer: Denso TEN Limited (±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.

Qualcomm Incorporated · highest

85
Google Technology… · near

62
Otsuka Pharmaceutical · this assignee

62
Spreadtrum Communica… · near

62
Textron Systems · near

62
Canon U · near

62
3D Lighting… · lowest

7

What this shows Otsuka's Innovation Score is 62.4/100 (top 2% 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.

How Otsuka's grant cadence moved

Between 2020–2024, Otsuka Pharmaceutical Co., Ltd. received 120 grants versus 142 in 2015–2019 (-15% equal-window velocity, above median growth). Across complete PatentsView years, output peaked in 2015 at 68 grants and bottomed in 2018 at 9. Lead class A61P accounts for 62.6% of the portfolio across 73 subclasses. Volume neighbours: Denso TEN Limited (#1,522) and William Marsh Rice University (#1,530).

Otsuka's three-year grant acceleration

From 2019–2021 to 2022–2024, Otsuka Pharmaceutical Co., Ltd. moved from 57 to 79 grants (1.39x 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 #536. See the growth leaderboard.

Denso TEN

273
DH Development PTE

273
Nabtesco

273
Omya International

273
Pearson Education

273
Roche Sequencing…

273
Valeo Schalter UN…

273
William Marsh Ric…

273
Otsuka Pharmaceut… ◀

273

What this shows Otsuka holds 273 patents at rank #1,526, shown against the 8 assignees closest to it in grant volume rather than the industry's largest filers.

Companies ranked near Otsuka

By rank, the assignees closest to #1,526 in granted patent volume.

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

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

Assignees with similar portfolio profiles

Two PlainPatent-derived peer sets for Otsuka, neither rank-band nor same-CPC leaders (those blocks stay above).

Similar innovation score

Nearest assignees by Innovation Score (62 here).

Spreadtrum Communications (Shanghai) Co., Ltd. 62 Google Technology Holdings LLC 62 Textron Systems Corporation 62 Canon U.S.A., Inc. 62

Similar claim depth

Nearest assignees by average claims per patent (14.6 here).

Johnson Electric International AG 14.6 avg Whirlpool Corporation 14.6 avg ESS Tech, Inc. 14.6 avg Conagen Inc. 14.6 avg

Otsuka's Innovation Score vs. every tracked assignee

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

62 Top 2% higher than 98% 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

Otsuka Pharmaceutical Co., Ltd. patent grants by year, 2015–2025
Year	Patents Granted	Share of Period
2015	68	24.9%
2016	25	9.2%
2017	24	8.8%
2018	9	3.3%
2019	16	5.9%
2020	18	6.6%
2021	23	8.4%
2022	30	11.0%
2023	24	8.8%
2024	25	9.2%
2025partial year	11	4.0%

Which technologies does Otsuka Pharmaceutical Co., Ltd. patent most?

A61P - Specific Therapeutic Activity OF Chemical Compounds OR Medicinal Preparations 171

A61K - Preparations FOR Medical, Dental OR Toiletry Purposes 153

C07D - Heterocyclic Compounds 63

A61B - DIAGNOSIS; SURGERY; Identification 31

G01N - Investigating OR Analysing Materials BY Determining Their Chemical OR Physical Properties 30

C12N - Microorganisms OR ENZYMES; Compositions THEREOF; Propagating, Preserving, OR Maintaining MICROORGANISMS; Mutation OR Genetic ENGINEERING; Culture Media 23

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 18

A23L - Foods, Foodstuffs OR Non-alcoholic Beverages, NOT Otherwise Provided FOR; Preparation OR Treatment Thereof 18

C07B - General Methods OF Organic CHEMISTRY; Apparatus Therefor 17

C07H - SUGARS; Derivatives THEREOF; NUCLEOSIDES; NUCLEOTIDES; Nucleic Acids 15

Y02P - Climate Change Mitigation Technologies IN THE Production OR Processing OF Goods 14

G16H - Healthcare Informatics, i.e. Information AND Communication Technology [ICT] Specially Adapted FOR THE Handling OR Processing OF Medical OR Healthcare Data 13

C07F - Acyclic, Carbocyclic OR Heterocyclic Compounds Containing Elements Other Than Carbon, Hydrogen, Halogen, Oxygen, Nitrogen, Sulfur, Selenium OR Tellurium 12

B01L - Chemical OR Physical Laboratory Apparatus FOR General USE 11

H04B - Transmission 10

Top 15 of 73 technology areas

Where it ranks

Overall rank by patents

#1,526

of 49,997 tracked assignees

Innovation Score

62.4 out of 100

View all rankings →

Data Source

USPTO PatentsView, US granted patents 2015–2025

How is Innovation Score calculated?

What to do with this data

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

Otsuka Pharmaceutical Co., Ltd.'s lead technology class is A61P (Specific Therapeutic Activity OF Chemical Compounds OR Medicinal Preparations), 62.6% of its portfolio - see every assignee active in that class. Explore A61P
Ranked #1,526 of 49,997 tracked assignees by patent volume - see the full leaderboard. See the ranking
Compare Otsuka Pharmaceutical Co., Ltd. against Denso TEN Limited, an assignee filing at a similar volume. Compare portfolios
Innovation Score of 62.4/100 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.