Where does Clean Air Group, Inc. rank among US patent assignees?

According to USPTO PatentsView (2015–2025 granted utility patents), Clean Air Group, Inc. ranks #45,708 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 Air Group, Inc. hold?

Clean Air Group, Inc. holds 5 US utility patents granted between 2015 and 2024, spanning 10 technology areas.

What is Clean Air Group, Inc.'s Innovation Score?

Clean Air Group, Inc. has an Innovation Score of 37.9 out of 100 (top 42% of the corpus). This composite metric weighs portfolio volume (40%), grant velocity (20%), technology breadth (25%), and claim depth (15%).

Is Clean Air Group, Inc.'s patent grant rate increasing or decreasing?

Clean Air Group, Inc.'s recent grant velocity is +50% compared to the prior five-year period (grant years, not application filing dates). This indicates accelerating grant output.

What does claim depth mean for Clean Air Group, Inc.'s patents?

Clean Air Group, Inc.'s patents average 12.0 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 Air Group, Inc. 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

Clean Air Group, Inc.

Q: What technology areas does Clean Air Group, Inc. focus on?

Clean Air Group, Inc.'s top technology area is B03C (Magnetic OR Electrostatic Separation OF Solid Materials From Solid Materials OR FLUIDS; Separation BY High-voltage Electric Fields) with 4 patents, ranking #50 of 253 assignees active in that subclass. Grants appear in 10 CPC subclasses total.

USPTO PatentsView assignee record - 5 granted patents across 10 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: B03C (Magnetic OR Electrostatic Separation OF Solid Materials From Solid Materials OR FLUIDS; Separation BY High-voltage Electric Fields).

Compiled by PlainPatent · May 15, 2026

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Explore the portfolio See the ranking

The verdict

According to USPTO PatentsView, Clean ranks #45,708 of 49,997 tracked US assignees by granted-patent volume, with 5 patents across 10 technology areas.

#45,708
of 49,997 US assignees by volume: Top 42%
by Innovation Score (37.9/100): 12.0
avg claims per patent: +50%
grant velocity, last 5 yrs

USPTO PatentsView assignee plate

Corpus R45708 · US Corporation #45,708 · 5 grants

GRANTS-MICRO · BOTTOM-DECILE · PHOTO-FINISH · CPC-FOCUS · INNOV-THIN · CLAIMS-RICH · TYPE-USCORP · VEL-SURGE · BOOK-FULL

GRANTS-MICRO 5 grants
BOTTOM-DECILE #45,708/49,997
PHOTO-FINISH Citrox Biosciences
CPC-FOCUS B03C · 10 areas
INNOV-THIN 37.9/100
CLAIMS-RICH 12.0 claims/avg
TYPE-USCORP US Corporation
VEL-SURGE +50% vel
BOOK-FULL 10/10 fields

Nearest grant-volume peer: Citrox Biosciences Limited (±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 37.9 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 6.2 pts (16%) Velocity 13.3 pts (35%) Breadth 11.2 pts (30%) Claim depth 7.2 pts (19%)

Qualcomm Incorporated · highest

85
Clean Air Group · this assignee

38
3D Lighting… · lowest

7

What this shows Clean's Innovation Score is 37.9/100 (top 42% 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 12.0 claims/patent is at or below the 12.8 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 Air Group, Inc. is a focused PatentsView assignee: 10 CPC subclasses with 80% of grants classified under B03C (Magnetic OR Electrostatic Separation OF Solid Materials From Solid Materials OR FLUIDS; Separation BY High-voltage Electric Fields). Peak complete grant year is 2024 (2 grants) versus a trough of 1 in 2015. By volume, Clean sits between Citrox Biosciences Limited and Clear-Cut Medical Ltd..

Clean's three-year grant acceleration

Clean Air Group, Inc. shows 2 grants in 2022–2024 against only 1 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.

Citrox Biosciences

5
Civolution B V

5
Clariant

5
Clarke Industrial…

5
Clean Energy Fuels

5
Cleanng

5
Cleanvolt Energy

5
Clear-cut Medical

5
Clean Air Group ◀

5

What this shows Clean holds 5 patents at rank #45,860, 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 #45,860 in granted patent volume.

Leaders in B03C (Magnetic OR Electrostatic Separation OF Solid Materials F…)

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)

38 Top 42% higher than 58% 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

Clean Air Group, Inc. patent grants by year, 2015–2025
Year	Patents Granted	Share of Period
2015	1	20.0%
2017	1	20.0%
2021	1	20.0%
2024	2	40.0%

Which technologies does Clean Air Group, Inc. patent most?

B03C - Magnetic OR Electrostatic Separation OF Solid Materials From Solid Materials OR FLUIDS; Separation BY High-voltage Electric Fields 4

A61L - Methods OR Apparatus FOR Sterilising Materials OR Objects IN GENERAL; Disinfection, Sterilisation OR Deodorisation OF AIR; Chemical Aspects OF Bandages, Dressings, Absorbent Pads OR Surgical ARTICLES; Materials FOR Bandages, Dressings, Absorbent Pads OR Surgical Articles 3

B01D - Separation 3

F24F - AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR Currents FOR Screening 3

H01T - Spark GAPS; Overvoltage Arresters Using Spark GAPS; Sparking PLUGS; Corona DEVICES; Generating Ions TO BE Introduced Into Non-enclosed Gases 2

Y02A - Technologies FOR Adaptation TO Climate Change 2

Y10T - Technical Subjects Covered BY Former US Classification 2

B60H - Arrangements OF Heating, Cooling, Ventilating OR Other Air-treating Devices Specially Adapted FOR Passenger OR Goods Spaces OF Vehicles 1

B64D - Equipment FOR Fitting IN OR TO AIRCRAFT; Flight SUITS; PARACHUTES; Arrangement OR Mounting OF Power Plants OR Propulsion Transmissions IN Aircraft 1

B61D - Body Details OR Kinds OF Railway Vehicles 1

Top 10 of 10 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 Air Group, Inc.'s patent record in context - here's where to go next.

Clean Air Group, Inc.'s lead technology class is B03C (Magnetic OR Electrostatic Separation OF Solid Materials From Solid Materials OR FLUIDS; Separation BY High-voltage Electric Fields), 80% of its portfolio - see every assignee active in that class. Explore B03C
Ranked #45,708 of 49,997 tracked assignees by patent volume - see the full leaderboard. See the ranking
Compare Clean Air Group, Inc. against Citrox Biosciences Limited, an assignee filing at a similar volume. Compare portfolios
Innovation Score of 37.9/100 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.