Where does Solar Frontier K.K. rank among US patent assignees?

According to USPTO PatentsView (2015–2025 granted utility patents), Solar Frontier K.K. ranks #11,444 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 Solar Frontier K.K. hold?

Solar Frontier K.K. holds 27 US utility patents granted between 2015 and 2024, spanning 16 technology areas.

What is Solar Frontier K.K.'s Innovation Score?

Solar Frontier K.K. has an Innovation Score of 31.6 out of 100 (38th 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 Solar Frontier K.K. focus on?

Solar Frontier K.K.'s top technology area is Y02E (Reduction OF Greenhouse GAS [GHG] Emissions, Related TO Energy Generation, Transmission OR Distribution) with 25 patents, ranking #603 of 5,963 assignees active in that subclass. Grants appear in 16 CPC subclasses total.

Is Solar Frontier K.K.'s patent grant rate increasing or decreasing?

Solar Frontier K.K.'s recent grant velocity is -58% 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 Solar Frontier K.K.'s patents?

Solar Frontier K.K.'s patents average 9.0 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 Solar Frontier K.K. 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

Solar Frontier K.K.

USPTO PatentsView assignee record - 27 granted patents across 16 technology areas, recorded in grant years 2015–2024. 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: Y02E (Reduction OF Greenhouse GAS [GHG] Emissions, Related TO Energy Generation, Transmission OR Distribution).

Compiled by PlainPatent · May 15, 2026

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The verdict

According to USPTO PatentsView, Solar ranks #11,444 of 49,997 tracked US assignees by granted-patent volume, with 27 patents across 16 technology areas.

#11,444
of 49,997 US assignees by volume: 38th percentile
by Innovation Score (31.6/100): 9.0
avg claims per patent: -58%
grant velocity, last 5 yrs

USPTO PatentsView assignee plate

Corpus R11444 · Foreign Corporation #11,444 · 27 grants

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

GRANTS-SMALL 27 grants
UPPER-Q #11,444/49,997
PHOTO-FINISH Sinyu Technology…
CPC-FOCUS Y02E · 16 areas
INNOV-THIN 31.6/100
CLAIMS-PAR 9.0 claims/avg
TYPE-FRNCORP Foreign Corp
VEL-DROP -58% vel
BOOK-FULL 10/10 fields

Nearest grant-volume peer: Sinyu Technology (FUJIAN) Co., Ltd. (±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 Solar’s 31.6 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 11.5 pts (36%) Velocity 0.6 pts (2%) Breadth 14.1 pts (45%) Claim depth 5.4 pts (17%)

Qualcomm Incorporated · highest

85
Aerodyn Consulting… · near

32
Zircon · near

32
Solar Frontier K K · this assignee

32
TEL FSI · near

32
Kenney Manufacturing · near

32
3D Lighting… · lowest

7

What this shows Solar's Innovation Score is 31.6/100 (38th 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 Solar?

Each dot is one of Solar’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). Solar’s own 9.0 claims/patent is at or below the 19.7 median for these volume peers. Volume here does not track with deeper claims; several lower-volume peers claim more thoroughly per patent.

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

Where Solar's grants concentrate

Solar Frontier K.K. is a focused PatentsView assignee: 16 CPC subclasses with 92.6% of grants classified under Y02E (Reduction OF Greenhouse GAS [GHG] Emissions, Related TO Energy Generation, Transmission OR Distribution). Peak complete grant year is 2016 (5 grants) versus a trough of 1 in 2024. By volume, Solar sits between Sinyu Technology (FUJIAN) Co., Ltd. and Stichting Energieonderzoek Centrum Nederland.

Solar's three-year grant acceleration

Solar Frontier K.K. shows 1 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.

Sinyu Technology…

27
Sofec

27
Softwear Automati…

27
Solantro Semicond…

27
Solmetex

27
Source Global PBC

27
Stat Medical Devi…

27
Stichting Energie…

27
Solar Frontier K K ◀

27

What this shows Solar holds 27 patents at rank #11,428, shown against the 8 assignees closest to it in grant volume rather than the industry's largest filers.

Companies ranked near Solar

By rank, the assignees closest to #11,428 in granted patent volume.

Leaders in Y02E (Reduction OF Greenhouse GAS [GHG] Emissions)

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

Assignees with similar portfolio profiles

Two PlainPatent-derived peer sets for Solar, neither rank-band nor same-CPC leaders (those blocks stay above). In Y02E (Reduction OF Greenhouse GAS [GHG] Emissions), Solar ranks #603 of 5,963 assignees by patent count in that subclass.

Similar innovation score

Nearest assignees by Innovation Score (32 here).

TEL FSI, Inc. 32 Zircon Corporation 32 Aerodyn Consulting Singapore PTE Ltd 32 Kenney Manufacturing Company 32

Solar's Innovation Score vs. every tracked assignee

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

32 38th percentile higher than 38% 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 · 2015–2024

Grants by year

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

View data table

Solar Frontier K.K. patent grants by year, 2015–2025
Year	Patents Granted	Share of Period
2015	3	11.1%
2016	5	18.5%
2017	5	18.5%
2018	2	7.4%
2019	4	14.8%
2020	3	11.1%
2021	4	14.8%
2024	1	3.7%

Which technologies does Solar Frontier K.K. patent most?

Y02E - Reduction OF Greenhouse GAS [GHG] Emissions, Related TO Energy Generation, Transmission OR Distribution 25

H10F - Inorganic Semiconductor Devices Sensitive TO Infrared Radiation, Light, Electromagnetic Radiation OF Shorter Wavelength OR Corpuscular Radiation 19

Y02P - Climate Change Mitigation Technologies IN THE Production OR Processing OF Goods 11

H02S - Generation OF Electric Power BY Conversion OF Infrared Radiation, Visible Light OR Ultraviolet Light, e.g. Using Photovoltaic [PV] Modules 9

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 6

F24S - Solar Heat COLLECTORS; Solar Heat Systems 6

Y02B - Climate Change Mitigation Technologies Related TO Buildings, e.g. Housing, House Appliances OR Related End-user Applications 6

C22C - Alloys 4

B22F - Working Metallic POWDER; Manufacture OF Articles From Metallic POWDER; Making Metallic Powder ; Apparatus OR Devices Specially Adapted FOR Metallic Powder 4

H10D - Inorganic Electric Semiconductor Devices 3

H10H - Inorganic Light-emitting Semiconductor Devices Having Potential Barriers 3

B09B - Disposal OF Solid Waste NOT Otherwise Provided FOR 1

Y02W - Climate Change Mitigation Technologies Related TO Wastewater Treatment OR Waste Management 1

B32B - Layered Products, i.e. Products Built-up OF Strata OF Flat OR Non-flat, e.g. Cellular OR Honeycomb, Form 1

B29B - Preparation OR Pretreatment OF THE Material TO BE SHAPED; Making Granules OR PREFORMS; Recovery OF Plastics OR Other Constituents OF Waste Material Containing Plastics 1

Top 15 of 16 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

Solar Frontier K.K.'s patent record in context - here's where to go next.

Solar Frontier K.K.'s lead technology class is Y02E (Reduction OF Greenhouse GAS [GHG] Emissions, Related TO Energy Generation, Transmission OR Distribution), 92.6% of its portfolio - see every assignee active in that class. Explore Y02E
Ranked #11,444 of 49,997 tracked assignees by patent volume - see the full leaderboard. See the ranking
Compare Solar Frontier K.K. against Sinyu Technology (FUJIAN) Co., Ltd., an assignee filing at a similar volume. Compare portfolios
Innovation Score of 31.6/100 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.