Where does Sumitomo Light Metal Industries, Ltd. rank among US patent assignees?

According to USPTO PatentsView (2015–2025 granted utility patents), Sumitomo Light Metal Industries, Ltd. ranks #33,463 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 Light Metal Industries, Ltd. hold?

Sumitomo Light Metal Industries, Ltd. holds 8 US utility patents granted between 2015 and 2019, spanning 15 technology areas.

What is Sumitomo Light Metal Industries, Ltd.'s Innovation Score?

Sumitomo Light Metal Industries, Ltd. has an Innovation Score of 30.9 out of 100 (36th 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 Light Metal Industries, Ltd. focus on?

Sumitomo Light Metal Industries, Ltd.'s top technology area is C22C (Alloys) with 6 patents, ranking #249 of 948 assignees active in that subclass. Grants appear in 15 CPC subclasses total.

Is Sumitomo Light Metal Industries, Ltd.'s patent grant rate increasing or decreasing?

Sumitomo Light Metal Industries, Ltd.'s recent grant velocity is -100% 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 Light Metal Industries, Ltd.'s patents?

Sumitomo Light Metal Industries, Ltd.'s patents average 16.0 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 Light Metal Industries, 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 Light Metal Industries, Ltd.

USPTO PatentsView assignee record - 8 granted patents across 15 technology areas, recorded in grant years 2015–2019. 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: C22C (Alloys).

Compiled by PlainPatent · May 15, 2026

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The verdict

According to USPTO PatentsView, Sumitomo ranks #33,463 of 49,997 tracked US assignees by granted-patent volume, with 8 patents across 15 technology areas.

#33,463
of 49,997 US assignees by volume: 36th percentile
by Innovation Score (30.9/100): 16.0
avg claims per patent: -100%
grant velocity, last 5 yrs

USPTO PatentsView assignee plate

Corpus R33463 · Foreign Corporation #33,463 · 8 grants

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

GRANTS-MICRO 8 grants
MID-PACK #33,463/49,997
PHOTO-FINISH Subchondral Solutions
CPC-FOCUS C22C · 15 areas
INNOV-THIN 30.9/100
CLAIMS-RICH 16.0 claims/avg
TYPE-FRNCORP Foreign Corp
VEL-DROP -100% vel
BOOK-FULL 10/10 fields

Nearest grant-volume peer: Subchondral Solutions, Inc. (±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 30.9 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 7.6 pts (25%) Velocity 0.0 pts (0%) Breadth 13.7 pts (44%) Claim depth 9.6 pts (31%)

Qualcomm Incorporated · highest

85
Sumitomo Light… · this assignee

31
3D Lighting… · lowest

7

What this shows Sumitomo's Innovation Score is 30.9/100 (36th 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 16.0 claims/patent is at or below the 16.9 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 Light Metal Industries, Ltd. is a focused PatentsView assignee: 15 CPC subclasses with 75% of grants classified under C22C (Alloys). Peak complete grant year is 2015 (5 grants) versus a trough of 1 in 2016. By volume, Sumitomo sits between Subchondral Solutions, Inc. and Sundiode Korea.

Subchondral Solut…

8
Subtle Medical

8
Sudzucker Aktieng…

8
Suez Environment

8
SUN Industries

8
SUN Pharmaceutica…

8
Suncall (SZ)

8
Sundiode Korea

8
Sumitomo Light Me… ◀

8

What this shows Sumitomo holds 8 patents at rank #33,281, 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 #33,281 in granted patent volume.

Leaders in C22C (Alloys)

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)

31 36th percentile higher than 36% 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 · 2015–2019

Grants by year

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

View data table

Sumitomo Light Metal Industries, Ltd. patent grants by year, 2015–2025
Year	Patents Granted	Share of Period
2015	5	62.5%
2016	1	12.5%
2019	2	25.0%

Which technologies does Sumitomo Light Metal Industries, Ltd. patent most?

C22C - Alloys 6

Y10T - Technical Subjects Covered BY Former US Classification 5

F28F - Details OF Heat-exchange AND Heat-transfer Apparatus, OF General Application 4

B23K - Soldering OR UNSOLDERING; WELDING; Cladding OR Plating BY Soldering OR WELDING; Cutting BY Applying Heat Locally, e.g. Flame CUTTING; Working BY Laser Beam 4

B21D - Working OR Processing OF Sheet Metal OR Metal Tubes, Rods OR Profiles Without Essentially Removing MATERIAL; Punching Metal 4

F28D - Heat-exchange Apparatus, NOT Provided FOR IN Another Subclass, IN Which THE Heat-exchange Media DO NOT Come Into Direct Contact 3

B32B - Layered Products, i.e. Products Built-up OF Strata OF Flat OR Non-flat, e.g. Cellular OR Honeycomb, Form 3

C25D - Processes FOR THE Electrolytic OR Electrophoretic Production OF COATINGS; ELECTROFORMING; Apparatus Therefor 2

B21B - Rolling OF Metal 1

C22F - Changing THE Physical Structure OF Non-ferrous Metals AND Non-ferrous Alloys 1

Y10S - Technical Subjects Covered BY Former Uspc Cross-reference ART Collections [XRACs] AND Digests 1

B62D - Motor VEHICLES; Trailers 1

E04C - Structural ELEMENTS; Building Materials 1

B23P - Metal-working NOT Otherwise Provided FOR; Combined OPERATIONS; Universal Machine Tools 1

C23C - Coating Metallic MATERIAL; Coating Material With Metallic MATERIAL; Surface Treatment OF Metallic Material BY Diffusion Into THE Surface, BY Chemical Conversion OR SUBSTITUTION; Coating BY Vacuum Evaporation, BY Sputtering, BY ION Implantation OR BY Chemical Vapour Deposition, IN General 1

Top 15 of 15 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 Light Metal Industries, Ltd.'s patent record in context - here's where to go next.

Sumitomo Light Metal Industries, Ltd.'s lead technology class is C22C (Alloys), 75% of its portfolio - see every assignee active in that class. Explore C22C
Ranked #33,463 of 49,997 tracked assignees by patent volume - see the full leaderboard. See the ranking
Compare Sumitomo Light Metal Industries, Ltd. against Subchondral Solutions, Inc., an assignee filing at a similar volume. Compare portfolios
Innovation Score of 30.9/100 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.