Where does Clean Energy Factory Co., Ltd. rank among US patent assignees?

According to USPTO PatentsView (2015–2025 granted utility patents), Clean Energy Factory Co., Ltd. ranks #45,709 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 Clean Energy Factory Co., Ltd. hold?

Clean Energy Factory Co., Ltd. holds 5 US utility patents granted between 2017 and 2025, spanning 12 technology areas.

What is Clean Energy Factory Co., Ltd.'s Innovation Score?

Clean Energy Factory Co., Ltd. has an Innovation Score of 23.8 out of 100 (13th percentile of the corpus). This composite metric weighs portfolio volume (40%), grant velocity (20%), technology breadth (25%), and claim depth (15%).

Is Clean Energy Factory Co., Ltd.'s patent grant rate increasing or decreasing?

Clean Energy Factory Co., Ltd.'s recent grant velocity is -67% 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 Clean Energy Factory Co., Ltd.'s patents?

Clean Energy Factory Co., Ltd.'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 Clean Energy Factory 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

Clean Energy Factory Co., Ltd.

Q: What technology areas does Clean Energy Factory Co., Ltd. focus on?

Clean Energy Factory Co., Ltd.'s top technology area is Y02E (Reduction OF Greenhouse GAS [GHG] Emissions, Related TO Energy Generation, Transmission OR Distribution) with 5 patents, ranking #2,175 of 5,963 assignees active in that subclass. Grants appear in 12 CPC subclasses total.

USPTO PatentsView assignee record - 5 granted patents across 12 technology areas, recorded in grant years 2017–2025. 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: 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, Clean ranks #45,709 of 49,997 tracked US assignees by granted-patent volume, with 5 patents across 12 technology areas.

#45,709
of 49,997 US assignees by volume: 13th percentile
by Innovation Score (23.8/100): 9.0
avg claims per patent: -67%
grant velocity, last 5 yrs

USPTO PatentsView assignee plate

Corpus R45709 · Foreign Corporation #45,709 · 5 grants

GRANTS-MICRO · BOTTOM-DECILE · PHOTO-FINISH · CPC-FOCUS · INNOV-THIN · CLAIMS-PAR · TYPE-FRNCORP · VEL-DROP · BOOK-FULL

GRANTS-MICRO 5 grants
BOTTOM-DECILE #45,709/49,997
PHOTO-FINISH Clarabridge
CPC-FOCUS Y02E · 12 areas
INNOV-THIN 23.8/100
CLAIMS-PAR 9.0 claims/avg
TYPE-FRNCORP Foreign Corp
VEL-DROP -67% vel
BOOK-FULL 10/10 fields

Nearest grant-volume peer: Clarabridge, 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 Clean’s 23.8 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 6.2 pts (26%) Velocity 0.0 pts (0%) Breadth 12.2 pts (51%) Claim depth 5.4 pts (23%)

Qualcomm Incorporated · highest

85
Clean Energy Factory · this assignee

24
3D Lighting… · lowest

7

What this shows Clean's Innovation Score is 23.8/100 (13th 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 Clean?

Each dot is one of Clean’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). Clean’s own 9.0 claims/patent is at or below the 14.8 median for these volume peers. Volume here does not track with deeper claims; several lower-volume peers claim more thoroughly per patent.

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

Where Clean's grants concentrate

Clean Energy Factory Co., Ltd. is a focused PatentsView assignee: 12 CPC subclasses with 100% of grants classified under Y02E (Reduction OF Greenhouse GAS [GHG] Emissions, Related TO Energy Generation, Transmission OR Distribution). Peak complete grant year is 2017 (2 grants) versus a trough of 1 in 2019. By volume, Clean sits between Clarabridge, Inc. and Cleaner's Supply, Inc..

Clarabridge

5
Clarolux

5
Claw Biotech Hold…

5
Cleafy SocietÀ PE…

5
Clean Energy Tech…

5
Clean Seed Agricu…

5
Clean Slurry Tech…

5
Cleaner's Supply

5
Clean Energy Fact… ◀

5

What this shows Clean holds 5 patents at rank #45,566, shown against the 8 assignees closest to it in grant volume rather than the industry's largest filers.

Companies ranked near Clean

By rank, the assignees closest to #45,566 in granted patent volume.

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

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

Clean's Innovation Score vs. every tracked assignee

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

24 13th percentile higher than 13% 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 · 2017–2025

Grants by year

Teal-shaded recent years (2020–present) versus the 2017–2019 baseline. Full figures in the table below.

View data table

Clean Energy Factory Co., Ltd. patent grants by year, 2015–2025
Year	Patents Granted	Share of Period
2017	2	40.0%
2019	1	20.0%
2020	1	20.0%
2025partial year	1	20.0%

Which technologies does Clean Energy Factory Co., Ltd. patent most?

Y02E - Reduction OF Greenhouse GAS [GHG] Emissions, Related TO Energy Generation, Transmission OR Distribution 5

H02S - Generation OF Electric Power BY Conversion OF Infrared Radiation, Visible Light OR Ultraviolet Light, e.g. Using Photovoltaic [PV] Modules 4

H10F - Inorganic Semiconductor Devices Sensitive TO Infrared Radiation, Light, Electromagnetic Radiation OF Shorter Wavelength OR Corpuscular Radiation 2

H02M - Apparatus FOR Conversion Between AC AND AC, Between AC AND DC, OR Between DC AND DC, AND FOR USE With Mains OR Similar Power Supply SYSTEMS; Conversion OF DC OR AC Input Power Into Surge Output POWER; Control OR Regulation Thereof 2

B65G - Transport OR Storage Devices, e.g. Conveyors FOR Loading OR Tipping, Shop Conveyor Systems OR Pneumatic Tube Conveyors 2

H02J - Circuit Arrangements OR Systems FOR Supplying OR Distributing Electric POWER; Systems FOR Storing Electric Energy 2

H02H - Emergency Protective Circuit Arrangements 1

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 1

G01S - Radio DIRECTION-FINDING; Radio NAVIGATION; Determining Distance OR Velocity BY USE OF Radio WAVES; Locating OR Presence-detecting BY USE OF THE Reflection OR Reradiation OF Radio WAVES; Analogous Arrangements Using Other Waves 1

B60P - Vehicles Adapted FOR Load Transportation OR TO Transport, TO Carry, OR TO Comprise Special Loads OR Objects 1

E04G - SCAFFOLDING; FORMS; SHUTTERING; Building Implements OR Aids, OR Their USE; Handling Building Materials ON THE SITE; Repairing, Breaking-up OR Other Work ON Existing Buildings 1

G05F - Systems FOR Regulating Electric OR Magnetic Variables 1

Top 12 of 12 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

Clean Energy Factory Co., Ltd.'s patent record in context - here's where to go next.

Clean Energy Factory Co., Ltd.'s lead technology class is Y02E (Reduction OF Greenhouse GAS [GHG] Emissions, Related TO Energy Generation, Transmission OR Distribution), 100% of its portfolio - see every assignee active in that class. Explore Y02E
Ranked #45,709 of 49,997 tracked assignees by patent volume - see the full leaderboard. See the ranking
Compare Clean Energy Factory Co., Ltd. against Clarabridge, Inc., an assignee filing at a similar volume. Compare portfolios
Innovation Score of 23.8/100 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.