Where does Sumitomo Electric Lightwave Corp. rank among US patent assignees?

According to USPTO PatentsView (2015–2025 granted utility patents), Sumitomo Electric Lightwave Corp. ranks #25,303 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 Lightwave Corp. hold?

Sumitomo Electric Lightwave Corp. holds 11 US utility patents granted between 2015 and 2025, spanning 7 technology areas.

What is Sumitomo Electric Lightwave Corp.'s Innovation Score?

Sumitomo Electric Lightwave Corp. has an Innovation Score of 27.7 out of 100 (25th percentile 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 Lightwave Corp. focus on?

Sumitomo Electric Lightwave Corp.'s top technology area is G02B (Optical Elements, Systems OR Apparatus) with 10 patents, ranking #1,088 of 4,891 assignees active in that subclass. Grants appear in 7 CPC subclasses total.

Is Sumitomo Electric Lightwave Corp.'s patent grant rate increasing or decreasing?

Sumitomo Electric Lightwave Corp.'s recent grant velocity is -57% 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 Sumitomo Electric Lightwave Corp.'s patents?

Sumitomo Electric Lightwave Corp.'s patents average 14.7 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 Lightwave Corp. 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 US Corporation

Sumitomo Electric Lightwave Corp.

USPTO PatentsView assignee record - 11 granted patents across 7 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: G02B (Optical Elements, Systems OR Apparatus).

Compiled by PlainPatent · May 15, 2026

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The verdict

According to USPTO PatentsView, Sumitomo ranks #25,303 of 49,997 tracked US assignees by granted-patent volume, with 11 patents across 7 technology areas.

#25,303
of 49,997 US assignees by volume: 25th percentile
by Innovation Score (27.7/100): 14.7
avg claims per patent: -57%
grant velocity, last 5 yrs

USPTO PatentsView assignee plate

Corpus R25303 · US Corporation #25,303 · 11 grants

GRANTS-MICRO · MID-PACK · PHOTO-FINISH · CPC-NARROW · INNOV-THIN · CLAIMS-RICH · TYPE-USCORP · VEL-DROP · BOOK-FULL

GRANTS-MICRO 11 grants
MID-PACK #25,303/49,997
PHOTO-FINISH Stor S L
CPC-NARROW G02B · 7 areas
INNOV-THIN 27.7/100
CLAIMS-RICH 14.7 claims/avg
TYPE-USCORP US Corporation
VEL-DROP -57% vel
BOOK-FULL 10/10 fields

Nearest grant-volume peer: Stor, S.L. (±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 27.7 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 8.6 pts (31%) Velocity 1.0 pts (4%) Breadth 9.4 pts (34%) Claim depth 8.8 pts (32%)

Qualcomm Incorporated · highest

85
Sumitomo Electric… · this assignee

28
3D Lighting… · lowest

7

What this shows Sumitomo's Innovation Score is 27.7/100 (25th percentile 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 14.7 claims/patent is ABOVE the 11.8 median for these volume peers. More thorough claims than most filers at this scale, not just more of them.

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

Where Sumitomo's grants concentrate

Sumitomo Electric Lightwave Corp. is a focused PatentsView assignee: 7 CPC subclasses with 90.9% of grants classified under G02B (Optical Elements, Systems OR Apparatus). Peak complete grant year is 2019 (5 grants) versus a trough of 1 in 2015. By volume, Sumitomo sits between Stor, S.L. and Sunshine Kaidi NEW Energy Group Co., Ltd..

Sumitomo's three-year grant acceleration

Sumitomo Electric Lightwave Corp. shows 1 grants in 2022–2024 against only 7 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.

Stor S L

11
Storm Pneumatic T…

11
Stratus Ireland

11
Subpac

11
Summit Packaging…

11
SUN Medical

11
Sunoptic

11
Sunshine Kaidi NE…

11
Sumitomo Electric… ◀

11

What this shows Sumitomo holds 11 patents at rank #25,195, 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 #25,195 in granted patent volume.

Leaders in G02B (Optical Elements)

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, grant velocity, technology breadth, and claim depth (0–100)

28 25th percentile higher than 25% 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

Sumitomo Electric Lightwave Corp. patent grants by year, 2015–2025
Year	Patents Granted	Share of Period
2015	1	9.1%
2018	1	9.1%
2019	5	45.5%
2020	2	18.2%
2023	1	9.1%
2025partial year	1	9.1%

Which technologies does Sumitomo Electric Lightwave Corp. patent most?

G02B - Optical Elements, Systems OR Apparatus 10

H04B - Transmission 2

G01M - Testing Static OR Dynamic Balance OF Machines OR STRUCTURES; Testing OF Structures OR Apparatus, NOT Otherwise Provided FOR 1

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

B26D - CUTTING; Details Common TO Machines FOR Perforating, Punching, Cutting-out, Stamping-out OR Severing 1

Y10T - Technical Subjects Covered BY Former US Classification 1

H04Q - Selecting 1

Top 7 of 7 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 Lightwave Corp.'s patent record in context - here's where to go next.

Sumitomo Electric Lightwave Corp.'s lead technology class is G02B (Optical Elements, Systems OR Apparatus), 90.9% of its portfolio - see every assignee active in that class. Explore G02B
Ranked #25,303 of 49,997 tracked assignees by patent volume - see the full leaderboard. See the ranking
Compare Sumitomo Electric Lightwave Corp. against Stor, S.L., an assignee filing at a similar volume. Compare portfolios
Innovation Score of 27.7/100 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.