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

According to USPTO PatentsView (2015–2025 granted utility patents), Otsuka Chemical Co., Ltd. ranks #6,824 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 Chemical Co., Ltd. hold?

Otsuka Chemical Co., Ltd. holds 49 US utility patents granted between 2015 and 2025, spanning 45 technology areas.

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

Otsuka Chemical Co., Ltd. has an Innovation Score of 47.6 out of 100 (top 18% of the corpus). This composite metric weighs portfolio volume (40%), grant velocity (20%), technology breadth (25%), and claim depth (15%).

What technology areas does Otsuka Chemical Co., Ltd. focus on?

Otsuka Chemical Co., Ltd.'s top technology area is C08K (Use of inorganic or non-macromolecular organic substances as compounding ingredients) with 22 patents, ranking #171 of 1,963 assignees active in that subclass. Grants appear in 45 CPC subclasses total.

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

Otsuka Chemical Co., Ltd.'s recent grant velocity is -5% 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 Chemical Co., Ltd.'s patents?

Otsuka Chemical Co., Ltd.'s patents average 9.3 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 Chemical 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 Chemical Co., Ltd.

USPTO PatentsView assignee record - 49 granted patents across 45 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: C08K (Use of inorganic or non-macromolecular organic substances as compounding ingredients).

Compiled by PlainPatent · May 15, 2026

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The verdict

According to USPTO PatentsView, Otsuka ranks #6,824 of 49,997 tracked US assignees by granted-patent volume, with 49 patents across 45 technology areas.

#6,824
of 49,997 US assignees by volume: Top 18%
by Innovation Score (47.6/100): 9.3
avg claims per patent: -5%
grant velocity, last 5 yrs

USPTO PatentsView assignee plate

Corpus R6824 · Foreign Corporation #6,824 · 49 grants

GRANTS-SMALL · UPPER-Q · PHOTO-FINISH · CPC-WIDE · INNOV-PAR · CLAIMS-PAR · TYPE-FRNCORP · VEL-FLAT · BOOK-FULL

GRANTS-SMALL 49 grants
UPPER-Q #6,824/49,997
PHOTO-FINISH National Guard…
CPC-WIDE C08K · 45 areas
INNOV-PAR 47.6/100
CLAIMS-PAR 9.3 claims/avg
TYPE-FRNCORP Foreign Corp
VEL-FLAT -5% vel
BOOK-FULL 10/10 fields

Nearest grant-volume peer: National Guard Health Affairs (±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 Otsuka’s 47.6 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 13.5 pts (28%) Velocity 4.8 pts (10%) Breadth 23.7 pts (50%) Claim depth 5.6 pts (12%)

Qualcomm Incorporated · highest

85
Clexio Biosciences · near

48
Magnecomp · near

48
National University… · near

48
Otsuka Chemical · this assignee

48
Werner · near

48
3D Lighting… · lowest

7

What this shows Otsuka's Innovation Score is 47.6/100 (top 18% 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 Otsuka?

Each dot is one of Otsuka’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). Otsuka’s own 9.3 claims/patent is at or below the 13.9 median for these volume peers. Volume here does not track with deeper claims; several lower-volume peers claim more thoroughly per patent.

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

Where Otsuka's grants concentrate

Otsuka Chemical Co., Ltd. is a focused PatentsView assignee: 45 CPC subclasses with 44.9% of grants classified under C08K (Use of inorganic or non-macromolecular organic substances as compounding ingredients). Peak complete grant year is 2018 (9 grants) versus a trough of 1 in 2024. By volume, Otsuka sits between Nikon Vision Co., Ltd. and Picarro, Inc..

Otsuka's three-year grant acceleration

Otsuka Chemical Co., Ltd. shows 10 grants in 2022–2024 against only 14 in 2019–2021. That prior window is too thin for a growth multiple (rename and spin-out assignees look artificially high when the baseline is near zero), so PlainPatent withholds a ranked acceleration claim here.

Nikon Vision

49
National Guard He…

49
Natuzzi S p A

49
Neutron Holdings

49
Oerlikon Textile…

49
Pelco

49
Pixelworks

49
Picarro

49
Otsuka Chemical ◀

49

What this shows Otsuka holds 49 patents at rank #6,823, 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 #6,823 in granted patent volume.

Leaders in C08K (Use of inorganic or non-macromolecular organic substances…)

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). In C08K (Use of inorganic or non-macromolecular organic substances…), Otsuka ranks #171 of 1,963 assignees by patent count in that subclass.

Similar innovation score

Nearest assignees by Innovation Score (48 here).

National University Corporation Saitama University 48 Clexio Biosciences Ltd. 48 Magnecomp Corporation 48 Werner Co. 48

Otsuka's Innovation Score vs. every tracked assignee

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

48 Top 18% higher than 82% 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 Chemical Co., Ltd. patent grants by year, 2015–2025
Year	Patents Granted	Share of Period
2015	2	4.1%
2016	4	8.2%
2017	2	4.1%
2018	9	18.4%
2019	4	8.2%
2020	6	12.2%
2021	4	8.2%
2022	5	10.2%
2023	4	8.2%
2024	1	2.0%
2025partial year	8	16.3%

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

C08K - Use of inorganic or non-macromolecular organic substances as compounding ingredients 22

C08L - Compositions OF Macromolecular Compounds 18

C07C - Acyclic OR Carbocyclic Compounds 11

B60C - Vehicle TYRES; Tyre INFLATION; Tyre CHANGING; Connecting Valves TO Inflatable Elastic Bodies IN GENERAL; Devices OR Arrangements Related TO Tyres 10

C08F - Macromolecular Compounds Obtained BY Reactions Only Involving Carbon-to-carbon Unsaturated Bonds 9

C01G - Compounds Containing Metals NOT Covered BY Subclasses C01d OR C01f 9

C07F - Acyclic, Carbocyclic OR Heterocyclic Compounds Containing Elements Other Than Carbon, Hydrogen, Halogen, Oxygen, Nitrogen, Sulfur, Selenium OR Tellurium 8

C01P - Indexing Scheme Relating TO Structural AND Physical Aspects OF Solid Inorganic Compounds 8

C07B - General Methods OF Organic CHEMISTRY; Apparatus Therefor 7

A61K - Preparations FOR Medical, Dental OR Toiletry Purposes 7

A61P - Specific Therapeutic Activity OF Chemical Compounds OR Medicinal Preparations 6

C09K - Materials FOR Miscellaneous Applications, NOT Provided FOR Elsewhere 6

F16D - Couplings FOR Transmitting ROTATION; CLUTCHES; Brakes 6

Y02T - Climate Change Mitigation Technologies Related TO Transportation 5

C09D - Coating Compositions, e.g. Paints, Varnishes OR LACQUERS; Filling PASTES; Chemical Paint OR INK REMOVERS; INKS; Correcting FLUIDS; WOODSTAINS; Pastes OR Solids FOR Colouring OR PRINTING; USE OF Materials Therefor 4

Top 15 of 45 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

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

Otsuka Chemical Co., Ltd.'s lead technology class is C08K (Use of inorganic or non-macromolecular organic substances as compounding ingredients), 44.9% of its portfolio - see every assignee active in that class. Explore C08K
Ranked #6,824 of 49,997 tracked assignees by patent volume - see the full leaderboard. See the ranking
Compare Otsuka Chemical Co., Ltd. against Nikon Vision Co., Ltd., an assignee filing at a similar volume. Compare portfolios
Innovation Score of 47.6/100 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.