USPTO 2015–2025 USPTO PatentsView Foreign Corporation

Cosmo OIL Co., Ltd.

USPTO PatentsView assignee record - 52 granted patents across 23 technology areas, recorded in grant years 2015–2022. 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: C10G (CRACKING HYDROCARBON OILS; PRODUCTION OF LIQUID HYDROCARBON MIXTURES, e.g. BY DESTRUCTIVE HYDROGENATION, OLIGOMERISATION, POLYMERISATION ; RECOVERY OF HYDROCARBON OILS FROM OIL-SHALE, OIL-SAND, OR GAS).

Compiled by PlainPatent · May 15, 2026

Explore the portfolio See the ranking

Total patents granted

CPC technology areas

6.1

Avg claims per patent

-94%

5-year grant velocity

The verdict

According to USPTO PatentsView, Cosmo ranks #6,425 of 50,000 tracked US assignees by granted-patent volume, with 52 patents across 23 technology areas.

#6,425
of 50,000 US assignees by volume: Top 48%
by Innovation Score (36.0/100): 6.1
avg claims per patent: -94%
grant velocity, last 5 yrs

Portfolio overview

Cosmo OIL Co., Ltd. has been granted 52 US utility patents between 2015 and 2022, placing Cosmo OIL Co., Ltd. at #6,425 of 50,000 across all assignees tracked by PlainPatent. This portfolio spans 23 distinct Cooperative Patent Classification (CPC) subclasses, averaging 6.1 claims per patent with primary concentration in C10G (CRACKING HYDROCARBON OILS; PRODUCTION OF LIQUID HYDROCARBON MIXTURES, e.g. BY DESTRUCTIVE HYDROGENATION, OLIGOMERISATION, POLYMERISATION ; RECOVERY OF HYDROCARBON OILS FROM OIL-SHALE, OIL-SAND, OR GAS). As a Foreign Corporation, Cosmo OIL Co., Ltd. is one of the more focused assignees in the PatentsView dataset. By volume, Cosmo sits between Biocon Ltd. (52 patents, rank #6,420) and Dalphi Metal Espana S.a. (52 patents, rank #6,428) - the closest US assignees by grant volume. The composite Innovation Score of 36.0/100 blends portfolio volume, grant velocity, technology breadth, and claim depth into a single comparable measure drawn directly from USPTO PatentsView records.

Grant cadence records the difference between two grant-year windows. Between 2020 and 2024 the company received 3 grants, compared with 49 in the 2015–2019 window, a -94% shift in five-year grant velocity. Both windows cover five complete grant years; the latest PatentsView year is a partial release and is excluded from this comparison, though it still appears in the yearly table and chart below. Grant timing can lag the related application by years, so this comparison does not establish current R&D spending, strategic intent, or a company’s application activity. The Foreign Corporation classification provides context for the assignee record, not a conclusion about its business strategy.

Claim depth and technology breadth describe this aggregate record. Cosmo OIL Co., Ltd.'s 6.1 average claims per patent is an average count, not a measure of claim scope, legal strength, enforceability, or design-around risk. The record spans 23 CPC subclasses. Combined with portfolio volume, these figures let readers compare the documented grant records of assignees in similar technology classes.

Biocon

52
Cameron Solutions

52
Chyng HONG

52
Convatec

52
CPA POOL Products

52
Certainteed Gypsum

52
DUO Security

52
Dalphi Metal Espa…

52
Cosmo OIL ◀

52

What this shows Cosmo holds 52 patents at rank #6,424, shown against the 8 assignees closest to it in grant volume rather than the industry's largest filers.

Companies ranked near Cosmo

By rank, the assignees closest to #6,424 in granted patent volume.

Leaders in C10G (Cracking Hydrocarbon OILS)

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

Assignees with similar portfolio profiles

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

Similar innovation score

Nearest assignees by Innovation Score (36 here).

JST Performance, Llc 36 Digilock Asia Ltd 36 Rebiotix Inc. 36 Zume, Inc. 36

Similar claim depth

Nearest assignees by average claims per patent (6.1 here).

Nissin Foods Holdings Co., Ltd. 6.1 avg Isuzu Motors Limited 6.1 avg Shenzhen Grandsun Electronic Co., Ltd. 6.0 avg Wargaming.net Limited 6.0 avg

Cosmo's Innovation Score vs. every tracked assignee

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

36 Top 48% higher than 52% 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 · 2015–2022

Grants by year

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

View data table

Cosmo OIL Co., Ltd. patent grants by year, 2015–2025
Year	Patents Granted	Share of Period
2015	14	26.9%
2016	17	32.7%
2017	9	17.3%
2018	7	13.5%
2019	2	3.8%
2020	1	1.9%
2021	1	1.9%
2022	1	1.9%

Which technologies does Cosmo OIL Co., Ltd. patent most?

C10G - CRACKING HYDROCARBON OILS; PRODUCTION OF LIQUID HYDROCARBON MIXTURES, e.g. BY DESTRUCTIVE HYDROGENATION, OLIGOMERISATION, POLYMERISATION ; RECOVERY OF HYDROCARBON OILS FROM OIL-SHALE, OIL-SAND, OR GASES; REFINING MIXTURES MAINLY CONSISTING OF HYDROCARBONS; REFORMING OF NAPHTHA; MINERAL WAXES 49

B01J - CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS 31

Y02P - CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS 11

B01D - SEPARATION 6

C07C - ACYCLIC OR CARBOCYCLIC COMPOUNDS 4

C10K - PURIFYING OR MODIFYING THE CHEMICAL COMPOSITION OF COMBUSTIBLE GASES CONTAINING CARBON MONOXIDE 3

C01B - NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; ; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C 3

Y02C - CAPTURE, STORAGE, SEQUESTRATION OR DISPOSAL OF GREENHOUSE GASES [GHG] 2

A01N - PRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTS THEREOF ; BIOCIDES, e.g. AS DISINFECTANTS, AS PESTICIDES OR AS HERBICIDES ; PEST REPELLANTS OR ATTRACTANTS; PLANT GROWTH REGULATORS 2

G01N - INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES 2

C10L - FUELS NOT OTHERWISE PROVIDED FOR; NATURAL GAS; SYNTHETIC NATURAL GAS OBTAINED BY PROCESSES NOT COVERED BY SUBCLASSES C10G OR C10K; LIQUIFIED PETROLEUM GAS; USE OF ADDITIVES TO FUELS OR FIRES; FIRE-LIGHTERS 2

F25J - LIQUEFACTION, SOLIDIFICATION OR SEPARATION OF GASES OR GASEOUS ; OR LIQUEFIED GASEOUS; MIXTURES BY PRESSURE AND COLD TREATMENT ; OR BY BRINGING THEM INTO THE SUPERCRITICAL STATE 1

A01G - HORTICULTURE; CULTIVATION OF VEGETABLES, FLOWERS, RICE, FRUIT, VINES, HOPS OR SEAWEED; FORESTRY; WATERING 1

F28D - HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT 1

F22B - METHODS OF STEAM GENERATION; STEAM BOILERS 1

Top 15 of 23 technology areas

Grant record at a glance

Portfolio Volume 52 grants

CPC subclasses 23

Avg. claims / grant 6.1

Velocity -94%

Historical grant data only; it does not rate legal strength or current strategy.

Where it ranks

Overall rank by patents

#6,425

of 50,000 tracked assignees

Innovation Score

36.0 out of 100

View all rankings →

Data Source

USPTO PatentsView, US granted patents 2015–2025

How is Innovation Score calculated?

Frequently Asked Questions

Where does Cosmo OIL Co., Ltd. rank among US patent assignees?

According to USPTO PatentsView (2015–2025 granted utility patents), Cosmo OIL Co., Ltd. ranks #6,425 of 50,000 assignees by granted-patent volume, the same sort as the companies listing and top-holders ranking. See /methodology/#corpus-placement.

How many patents does Cosmo OIL Co., Ltd. hold?

Cosmo OIL Co., Ltd. holds 52 US utility patents granted between 2015 and 2022, spanning 23 technology areas.

What is Cosmo OIL Co., Ltd.'s Innovation Score?

Cosmo OIL Co., Ltd. has an Innovation Score of 36.0 out of 100 (top 48% of the corpus). This composite metric weighs portfolio volume (40%), grant velocity (20%), technology breadth (25%), and claim depth (15%).

What technology areas does Cosmo OIL Co., Ltd. focus on?

Cosmo OIL Co., Ltd.'s top technology area is C10G (CRACKING HYDROCARBON OILS; PRODUCTION OF LIQUID HYDROCARBON MIXTURES, e.g. BY DESTRUCTIVE HYDROGENATION, OLIGOMERISATION, POLYMERISATION ; RECOVERY OF HYDROCARBON OILS FROM OIL-SHALE, OIL-SAND, OR GASES; REFINING MIXTURES MAINLY CONSISTING OF HYDROCARBONS; REFORMING OF NAPHTHA; MINERAL WAXES) with 49 patents. Grants appear in 23 CPC subclasses total.

Is Cosmo OIL Co., Ltd.'s patent grant rate increasing or decreasing?

Cosmo OIL Co., Ltd.'s recent grant velocity is -94% 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 Cosmo OIL Co., Ltd.'s patents?

Cosmo OIL Co., Ltd.'s patents average 6.1 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 Cosmo OIL 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

Cosmo's 52 grants land it in the top 48% 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 - Cosmo ranks #6,425 of 50,000. Top 50 holders
Most of this portfolio concentrates in C10G - see who else leads that technology area. C10G 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

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.