USPTO 2015–2025 USPTO PatentsView Foreign Corporation

Sumitomo Osaka Cement Co., Ltd.

USPTO PatentsView assignee record - 313 granted patents across 60 technology areas, active 2015–2025. Filing-trend and competitive-moat analysis cross-referenced to USPTO Patent Public Search. Primary class: G02F (OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICA).

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

Explore the portfolio See the ranking

313

Total patents granted

CPC technology areas

9.4

Avg claims per patent

-19%

5-year filing velocity

The verdict

Sumitomo holds 313 US patents across 60 technology areas, rank #1,348 of 50,000 tracked assignees.

#1,348
of 50,000 US assignees by volume: Top 8%
by Innovation Score (54.1/100): 9.4
avg claims per patent: -19%
filing velocity, last 5 yrs

Portfolio overview

Sumitomo Osaka Cement Co., Ltd. has been granted 313 US utility patents between 2015 and 2025, placing Sumitomo Osaka Cement Co., Ltd. at rank #1,348 across all assignees tracked by PlainPatent. This portfolio spans 60 distinct Cooperative Patent Classification (CPC) subclasses, averaging 9.4 claims per patent with primary concentration in G02F (OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICA). As a Foreign Corporation, Sumitomo Osaka Cement Co., Ltd. is one of the broader-portfolio assignees in the PatentsView dataset. By volume, Sumitomo sits between Sensor Electronic Technology, Inc. (314 patents, rank #1,344) and Marvell Israel (m.i.s.l) Ltd. (311 patents, rank #1,352) - the closest US assignees by grant volume. The composite Innovation Score of 54.1/100 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 140 grants, compared with 173 in the 2015–2019 window, a -19% 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. Sumitomo Osaka Cement Co., Ltd.'s 9.4 average claims per patent suggests focused, narrowly drawn claims typical of single-invention filings, while a multi-domain presence across 60 subclasses balances depth with breadth. Combined with portfolio volume, these signals let analysts, investors, and licensing professionals benchmark Sumitomo Osaka Cement Co., Ltd. against peers pursuing similar technology classes.

Sensor Technology

314
Celgene

313
Hisense USA

313
Hong Kong Applied…

313
Sumitomo Osaka Ce… ◀

313
Global Tel*Link

312
Motional AD

312
Mitsubishi Heavy…

311
Marvell Israel (M…

311

What this shows Sumitomo holds 313 patents at rank #1,348, shown against the 8 assignees closest to it in grant volume rather than the industry's largest filers.

Companies ranked near Sumitomo

By rank, the assignees closest to #1,348 in granted patent volume.

Leaders in G02F (Optical Devices OR Arrangements FOR THE Control OF Light…)

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

Sumitomo's Innovation Score vs. every tracked assignee

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

54 Top 8% higher than 92% 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

Sumitomo Osaka Cement Co., Ltd. patent grants by year, 2015–2025
Year	Patents Granted	Share of Period
2015	17	5.4%
2016	35	11.2%
2017	27	8.6%
2018	46	14.7%
2019	48	15.3%
2020	33	10.5%
2021	28	8.9%
2022	33	10.5%
2023	13	4.2%
2024	14	4.5%
2025	19	6.1%

Which technologies does Sumitomo Osaka Cement Co., Ltd. patent most?

G02F - OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS 144

G02B - OPTICAL ELEMENTS, SYSTEMS OR APPARATUS 64

Y02E - REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION 62

H01M - PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY 59

H01L - SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10 59

C01P - INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS 28

H02N - ELECTRIC MACHINES NOT OTHERWISE PROVIDED FOR 24

C01B - NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; ; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C 22

C04B - LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE ; CERAMICS ; REFRACTORIES; TREATMENT OF NATURAL STONE 21

H01J - ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS 18

A61Q - SPECIFIC USE OF COSMETICS OR SIMILAR TOILETRY PREPARATIONS 15

A61K - PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES 15

H04B - TRANSMISSION 15

C09C - TREATMENT OF INORGANIC MATERIALS, OTHER THAN FIBROUS FILLERS, TO ENHANCE THEIR PIGMENTING OR FILLING PROPERTIES ; PREPARATION OF CARBON BLACK ; ; PREPARATION OF INORGANIC MATERIALS WHICH ARE NO SINGLE CHEMICAL COMPOUNDS AND WHICH ARE MAINLY USED AS PIGMENTS OR FILLERS 14

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 13

Top 15 of 60 technology areas

Patent Moat Analysis

Portfolio Volume Moderate

Tech Breadth Multi-domain

Claim Depth Simple

Velocity Declining

Where it ranks

Overall rank by patents

#1,348

Across all tracked assignees

Innovation Score

54.1 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 Sumitomo Osaka Cement Co., Ltd. hold?

Sumitomo Osaka Cement Co., Ltd. holds 313 US granted patents filed between 2015 and 2025, spanning 60 technology areas.

What is Sumitomo Osaka Cement Co., Ltd.'s Innovation Score?

Sumitomo Osaka Cement Co., Ltd. has an Innovation Score of 54.1 out of 100. This composite metric weighs portfolio volume (40%), filing velocity (20%), technology breadth (25%), and claim depth (15%).

What technology areas does Sumitomo Osaka Cement Co., Ltd. focus on?

Sumitomo Osaka Cement Co., Ltd.'s top technology area is G02F (OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS) with 144 patents. The company has filed patents in 60 CPC subclasses total.

Is Sumitomo Osaka Cement Co., Ltd.'s patent filing rate increasing or decreasing?

Sumitomo Osaka Cement Co., Ltd.'s recent filing velocity is -19% compared to the prior five-year period. Filing activity has slowed relative to earlier years.

What does claim depth mean for Sumitomo Osaka Cement Co., Ltd.'s patents?

Sumitomo Osaka Cement Co., Ltd.'s patents average 9.4 claims each. This is relatively simple claim structure, typical for focused inventions.

How is the Sumitomo Osaka Cement 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

Sumitomo's 313 grants land it in the top 8% 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 - Sumitomo ranks #1,348 of 50,000. Top 50 holders
Most of this portfolio concentrates in G02F - see who else leads that technology area. G02F 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.