Where does Sumitomo Electric Optifrontier Co., Ltd. rank among US patent assignees?

According to USPTO PatentsView (2015–2025 granted utility patents), Sumitomo Electric Optifrontier Co., Ltd. ranks #7,625 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 Sumitomo Electric Optifrontier Co., Ltd. hold?

Sumitomo Electric Optifrontier Co., Ltd. holds 43 US utility patents granted between 2021 and 2025, spanning 13 technology areas.

What is Sumitomo Electric Optifrontier Co., Ltd.'s Innovation Score?

Sumitomo Electric Optifrontier Co., Ltd. has an Innovation Score of 51.8 out of 100 (top 11% of the corpus). This composite metric weighs portfolio volume (40%), grant velocity (20%), technology breadth (25%), and claim depth (15%).

What technology areas does Sumitomo Electric Optifrontier Co., Ltd. focus on?

Sumitomo Electric Optifrontier Co., Ltd.'s top technology area is G02B (Optical Elements, Systems OR Apparatus) with 31 patents, ranking #449 of 4,891 assignees active in that subclass. Grants appear in 13 CPC subclasses total.

Is Sumitomo Electric Optifrontier Co., Ltd.'s patent grant rate increasing or decreasing?

Insufficient historical data is available to calculate a velocity trend for Sumitomo Electric Optifrontier Co., Ltd..

What does claim depth mean for Sumitomo Electric Optifrontier Co., Ltd.'s patents?

Sumitomo Electric Optifrontier Co., Ltd.'s patents average 9.9 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 Sumitomo Electric Optifrontier 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

Sumitomo Electric Optifrontier Co., Ltd.

USPTO PatentsView assignee record - 43 granted patents across 13 technology areas, recorded in grant years 2021–2025. 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: G02B (Optical Elements, Systems OR Apparatus).

Compiled by PlainPatent · May 15, 2026

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The verdict

According to USPTO PatentsView, Sumitomo ranks #7,625 of 49,997 tracked US assignees by granted-patent volume, with 43 patents across 13 technology areas.

#7,625
of 49,997 US assignees by volume: Top 11%
by Innovation Score (51.8/100): 9.9
avg claims per patent

USPTO PatentsView assignee plate

Corpus R7625 · Foreign Corporation #7,625 · 43 grants

GRANTS-SMALL · UPPER-Q · PHOTO-FINISH · CPC-FOCUS · INNOV-PAR · CLAIMS-PAR · TYPE-FRNCORP · SPAN-YRS · BOOK-RICH

GRANTS-SMALL 43 grants
UPPER-Q #7,625/49,997
PHOTO-FINISH Saverglass
CPC-FOCUS G02B · 13 areas
INNOV-PAR 51.8/100
CLAIMS-PAR 9.9 claims/avg
TYPE-FRNCORP Foreign Corp
SPAN-YRS 2021–2025 · 5y
BOOK-RICH 9/10 fields

Nearest grant-volume peer: Saverglass (±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 Sumitomo’s 51.8 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 13.1 pts (25%) Velocity 20.0 pts (39%) Breadth 12.7 pts (25%) Claim depth 5.9 pts (11%)

Qualcomm Incorporated · highest

85
Ansaldo Energia… · near

52
e-Vision Smart Optics · near

52
Oculus VR · near

52
Sumitomo Electric… · this assignee

52
Yakult Honsha · near

52
3D Lighting… · lowest

7

What this shows Sumitomo's Innovation Score is 51.8/100 (top 11% 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 Sumitomo?

Each dot is one of Sumitomo’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). Sumitomo’s own 9.9 claims/patent is at or below the 10.2 median for these volume peers. Volume here does not track with deeper claims; several lower-volume peers claim more thoroughly per patent.

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

Where Sumitomo's grants concentrate

Sumitomo Electric Optifrontier Co., Ltd. is a focused PatentsView assignee: 13 CPC subclasses with 72.1% of grants classified under G02B (Optical Elements, Systems OR Apparatus). Peak complete grant year is 2024 (19 grants) versus a trough of 1 in 2021. By volume, Sumitomo sits between SGL Carbon SE and Shenzhen Oceanwing Smart Innovations Technology Co., Ltd.

Sumitomo's three-year grant acceleration

Sumitomo Electric Optifrontier Co., Ltd. shows 30 grants in 2022–2024 against only 1 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.

SGL Carbon SE

43
Shibuya

43
Showa Denko Packa…

43
Standard CAR Truck

43
Suss Microtec Lit…

43
Saverglass

43
Schleuniger

43
Shenzhen Oceanwin…

43
Sumitomo Electric… ◀

43

What this shows Sumitomo holds 43 patents at rank #7,619, 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 #7,619 in granted patent volume.

Leaders in G02B (Optical Elements)

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

Assignees with similar portfolio profiles

Two PlainPatent-derived peer sets for Sumitomo, neither rank-band nor same-CPC leaders (those blocks stay above). In G02B (Optical Elements), Sumitomo ranks #449 of 4,891 assignees by patent count in that subclass.

Similar innovation score

Nearest assignees by Innovation Score (52 here).

Kabushiki Kaisha Yakult Honsha 52 e-Vision Smart Optics, Inc. 52 Ansaldo Energia Switzerland AG 52 Oculus VR, LLC 52

Sumitomo's Innovation Score vs. every tracked assignee

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

52 Top 11% higher than 89% 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 · 2021–2025

Grants by year

Teal-shaded recent years (2020–present) versus the 2021–2019 baseline. Full figures in the table below.

View data table

Sumitomo Electric Optifrontier Co., Ltd. patent grants by year, 2015–2025
Year	Patents Granted	Share of Period
2021	1	2.3%
2022	7	16.3%
2023	4	9.3%
2024	19	44.2%
2025partial year	12	27.9%

Which technologies does Sumitomo Electric Optifrontier Co., Ltd. patent most?

G02B - Optical Elements, Systems OR Apparatus 31

G01M - Testing Static OR Dynamic Balance OF Machines OR STRUCTURES; Testing OF Structures OR Apparatus, NOT Otherwise Provided FOR 2

H04B - Transmission 2

B65D - Containers FOR Storage OR Transport OF Articles OR Materials, e.g. Bags, Barrels, Bottles, Boxes, Cans, Cartons, Crates, Drums, Jars, Tanks, Hoppers, Forwarding CONTAINERS; Accessories, Closures, OR Fittings THEREFOR; Packaging ELEMENTS; Packages 2

H02G - Installation OF Electric Cables OR Lines, OR OF Combined Optical AND Electric Cables OR Lines 1

F16F - SPRINGS; SHOCK-ABSORBERS; Means FOR Damping Vibration 1

A45F - Travelling OR Camp EQUIPMENT: Sacks OR Packs Carried ON THE Body 1

H01S - Devices Using THE Process OF Light Amplification BY Stimulated Emission OF Radiation [LASER] TO Amplify OR Generate LIGHT; Devices Using Stimulated Emission OF Electromagnetic Radiation IN Wave Ranges Other Than Optical 1

B25H - Workshop Equipment, e.g. FOR Marking-out WORK; Storage Means FOR Workshops 1

H04Q - Selecting 1

G06F - Electric Digital Data Processing 1

G06Q - Information AND Communication Technology [ICT] Specially Adapted FOR Administrative, Commercial, Financial, Managerial OR Supervisory PURPOSES; Systems OR Methods Specially Adapted FOR Administrative, Commercial, Financial, Managerial OR Supervisory Purposes, NOT Otherwise Provided FOR 1

G05B - Control OR Regulating Systems IN GENERAL; Functional Elements OF Such SYSTEMS; Monitoring OR Testing Arrangements FOR Such Systems OR Elements 1

Top 13 of 13 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

Sumitomo Electric Optifrontier Co., Ltd.'s patent record in context - here's where to go next.

Sumitomo Electric Optifrontier Co., Ltd.'s lead technology class is G02B (Optical Elements, Systems OR Apparatus), 72.1% of its portfolio - see every assignee active in that class. Explore G02B
Ranked #7,625 of 49,997 tracked assignees by patent volume - see the full leaderboard. See the ranking
Compare Sumitomo Electric Optifrontier Co., Ltd. against SGL Carbon SE, an assignee filing at a similar volume. Compare portfolios
Innovation Score of 51.8/100 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.