Where does Sanyo Special Steel Co., Ltd. rank among US patent assignees?

According to USPTO PatentsView (2015–2025 granted utility patents), Sanyo Special Steel Co., Ltd. ranks #8,280 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 Sanyo Special Steel Co., Ltd. hold?

Sanyo Special Steel Co., Ltd. holds 39 US utility patents granted between 2015 and 2025, spanning 24 technology areas.

What is Sanyo Special Steel Co., Ltd.'s Innovation Score?

Sanyo Special Steel Co., Ltd. has an Innovation Score of 40.8 out of 100 (top 35% of the corpus). This composite metric weighs portfolio volume (40%), grant velocity (20%), technology breadth (25%), and claim depth (15%).

What technology areas does Sanyo Special Steel Co., Ltd. focus on?

Sanyo Special Steel Co., Ltd.'s top technology area is C22C (Alloys) with 37 patents, ranking #46 of 948 assignees active in that subclass. Grants appear in 24 CPC subclasses total.

Is Sanyo Special Steel Co., Ltd.'s patent grant rate increasing or decreasing?

Sanyo Special Steel Co., Ltd.'s recent grant velocity is -10% 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 Sanyo Special Steel Co., Ltd.'s patents?

Sanyo Special Steel Co., Ltd.'s patents average 7.7 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 Sanyo Special Steel 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

Sanyo Special Steel Co., Ltd.

USPTO PatentsView assignee record - 39 granted patents across 24 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: C22C (Alloys).

Compiled by PlainPatent · May 15, 2026

RSS updates for this company

Explore the portfolio See the ranking

The verdict

According to USPTO PatentsView, Sanyo ranks #8,280 of 49,997 tracked US assignees by granted-patent volume, with 39 patents across 24 technology areas.

#8,280
of 49,997 US assignees by volume: Top 35%
by Innovation Score (40.8/100): 7.7
avg claims per patent: -10%
grant velocity, last 5 yrs

USPTO PatentsView assignee plate

Corpus R8280 · Foreign Corporation #8,280 · 39 grants

GRANTS-SMALL · UPPER-Q · PHOTO-FINISH · CPC-FOCUS · INNOV-PAR · CLAIMS-SPARSE · TYPE-FRNCORP · VEL-FLAT · BOOK-FULL

GRANTS-SMALL 39 grants
UPPER-Q #8,280/49,997
PHOTO-FINISH Sakuu
CPC-FOCUS C22C · 24 areas
INNOV-PAR 40.8/100
CLAIMS-SPARSE 7.7 claims/avg
TYPE-FRNCORP Foreign Corp
VEL-FLAT -10% vel
BOOK-FULL 10/10 fields

Nearest grant-volume peer: Sakuu Corporation (±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 Sanyo’s 40.8 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 12.7 pts (31%) Velocity 6.1 pts (15%) Breadth 17.3 pts (43%) Claim depth 4.6 pts (11%)

Qualcomm Incorporated · highest

85
Dick's Sporting Goods · near

41
Fallbrook Intellectu… · near

41
Knox Associates · near

41
Sanyo Special Steel · this assignee

41
Selig Sealing Products · near

41
3D Lighting… · lowest

7

What this shows Sanyo's Innovation Score is 40.8/100 (top 35% 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 Sanyo?

Each dot is one of Sanyo’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). Sanyo’s own 7.7 claims/patent is at or below the 17.5 median for these volume peers. Volume here does not track with deeper claims; several lower-volume peers claim more thoroughly per patent.

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

Where Sanyo's grants concentrate

Sanyo Special Steel Co., Ltd. is a focused PatentsView assignee: 24 CPC subclasses with 94.9% of grants classified under C22C (Alloys). Peak complete grant year is 2020 (7 grants) versus a trough of 1 in 2017. By volume, Sanyo sits between Silhouette International Schmied AG and Slayback Pharma LLC.

Sanyo's three-year grant acceleration

Sanyo Special Steel Co., Ltd. shows 10 grants in 2022–2024 against only 11 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.

Silhouette Intern…

39
Silicon Valley Ba…

39
Skyworks Filter S…

39
Sakuu

39
Schreiner Group &…

39
Setpoint Medical

39
Singapore Univers…

39
Slayback Pharma

39
Sanyo Special Ste… ◀

39

What this shows Sanyo holds 39 patents at rank #8,286, shown against the 8 assignees closest to it in grant volume rather than the industry's largest filers.

Companies ranked near Sanyo

By rank, the assignees closest to #8,286 in granted patent volume.

Leaders in C22C (Alloys)

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

Assignees with similar portfolio profiles

Two PlainPatent-derived peer sets for Sanyo, neither rank-band nor same-CPC leaders (those blocks stay above). In C22C (Alloys), Sanyo ranks #46 of 948 assignees by patent count in that subclass.

Similar innovation score

Nearest assignees by Innovation Score (41 here).

Dick's Sporting Goods, Inc. 41 Selig Sealing Products, Inc. 41 Knox Associates, Inc. 41 Fallbrook Intellectual Property Company LLC 41

Sanyo's Innovation Score vs. every tracked assignee

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

41 Top 35% higher than 65% 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

Sanyo Special Steel Co., Ltd. patent grants by year, 2015–2025
Year	Patents Granted	Share of Period
2015	5	12.8%
2016	6	15.4%
2017	1	2.6%
2018	5	12.8%
2019	3	7.7%
2020	7	17.9%
2021	1	2.6%
2022	4	10.3%
2023	2	5.1%
2024	4	10.3%
2025partial year	1	2.6%

Which technologies does Sanyo Special Steel Co., Ltd. patent most?

C22C - Alloys 37

B22F - Working Metallic POWDER; Manufacture OF Articles From Metallic POWDER; Making Metallic Powder ; Apparatus OR Devices Specially Adapted FOR Metallic Powder 24

H01F - MAGNETS; INDUCTANCES; TRANSFORMERS; Selection OF Materials FOR Their Magnetic Properties 12

Y02P - Climate Change Mitigation Technologies IN THE Production OR Processing OF Goods 7

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 7

C21D - Modifying THE Physical Structure OF Ferrous METALS; General Devices FOR Heat Treatment OF Ferrous OR Non-ferrous Metals OR ALLOYS; Making Metal Malleable, e.g. BY Decarburisation OR Tempering 7

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 6

B33Y - Additive Manufacturing, i.e. Manufacturing OF Three-dimensional [3-D] Objects BY Additive Deposition, Additive Agglomeration OR Additive Layering, e.g. BY 3-D Printing, Stereolithography OR Selective Laser Sintering 6

H05K - Printed CIRCUITS; Casings OR Constructional Details OF Electric APPARATUS; Manufacture OF Assemblages OF Electrical Components 3

G11B - Information Storage Based ON Relative Movement Between Record Carrier AND Transducer 3

Y10T - Technical Subjects Covered BY Former US Classification 3

H01J - Electric Discharge Tubes OR Discharge Lamps 3

C08K - Use of inorganic or non-macromolecular organic substances as compounding ingredients 2

C22F - Changing THE Physical Structure OF Non-ferrous Metals AND Non-ferrous Alloys 2

B24C - Abrasive OR Related Blasting With Particulate Material 2

Top 15 of 24 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

Sanyo Special Steel Co., Ltd.'s patent record in context - here's where to go next.

Sanyo Special Steel Co., Ltd.'s lead technology class is C22C (Alloys), 94.9% of its portfolio - see every assignee active in that class. Explore C22C
Ranked #8,280 of 49,997 tracked assignees by patent volume - see the full leaderboard. See the ranking
Compare Sanyo Special Steel Co., Ltd. against Silhouette International Schmied AG, an assignee filing at a similar volume. Compare portfolios
Innovation Score of 40.8/100 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.