Where does 4C Air, Inc. rank among US patent assignees?

According to USPTO PatentsView (2015–2025 granted utility patents), 4C Air, Inc. ranks #38,499 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 4C Air, Inc. hold?

4C Air, Inc. holds 6 US utility patents granted between 2021 and 2025, spanning 9 technology areas.

What is 4C Air, Inc.'s Innovation Score?

4C Air, Inc. has an Innovation Score of 29.2 out of 100 (30th percentile of the corpus). This composite metric weighs portfolio volume (40%), grant velocity (20%), technology breadth (25%), and claim depth (15%).

Is 4C Air, Inc.'s patent grant rate increasing or decreasing?

Insufficient historical data is available to calculate a velocity trend for 4C Air, Inc..

What does claim depth mean for 4C Air, Inc.'s patents?

4C Air, Inc.'s patents average 12.3 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 4C Air, 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

4C Air, Inc.

Q: What technology areas does 4C Air, Inc. focus on?

4C Air, Inc.'s top technology area is D01D (Mechanical Methods OR Apparatus IN THE Manufacture OF Artificial Filaments, Threads, Fibres, Bristles OR Ribbons) with 3 patents, ranking #79 of 253 assignees active in that subclass. Grants appear in 9 CPC subclasses total.

USPTO PatentsView assignee record - 6 granted patents across 9 technology areas, recorded in grant years 2021–2025. 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: D01D (Mechanical Methods OR Apparatus IN THE Manufacture OF Artificial Filaments, Threads, Fibres, Bristles OR Ribbons).

Compiled by PlainPatent · May 15, 2026

RSS updates for this company

Explore the portfolio See the ranking

The verdict

According to USPTO PatentsView, 4C ranks #38,499 of 49,997 tracked US assignees by granted-patent volume, with 6 patents across 9 technology areas.

#38,499
of 49,997 US assignees by volume: 30th percentile
by Innovation Score (29.2/100): 12.3
avg claims per patent

USPTO PatentsView assignee plate

Corpus R38499 · US Corporation #38,499 · 6 grants

GRANTS-MICRO · LOWER-Q · PHOTO-FINISH · CPC-NARROW · INNOV-THIN · CLAIMS-RICH · TYPE-USCORP · SPAN-YRS · BOOK-RICH

GRANTS-MICRO 6 grants
LOWER-Q #38,499/49,997
PHOTO-FINISH 3ST Research
CPC-NARROW D01D · 9 areas
INNOV-THIN 29.2/100
CLAIMS-RICH 12.3 claims/avg
TYPE-USCORP US Corporation
SPAN-YRS 2021–2025 · 5y
BOOK-RICH 9/10 fields

Nearest grant-volume peer: 3ST Research LLC (±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 4C’s 29.2 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 6.7 pts (23%) Velocity 4.4 pts (15%) Breadth 10.6 pts (36%) Claim depth 7.4 pts (25%)

Qualcomm Incorporated · highest

85
4C Air · this assignee

29
3D Lighting… · lowest

7

What this shows 4C's Innovation Score is 29.2/100 (30th 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 4C?

Each dot is one of 4C’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). 4C’s own 12.3 claims/patent is ABOVE the 11.8 median for these volume peers. More thorough claims than most filers at this scale, not just more of them.

4C vs its 8 nearest volume peers: granted patents vs average claims per patent. Source: USPTO PatentsView.

Where 4C's grants concentrate

4C Air, Inc. is a focused PatentsView assignee: 9 CPC subclasses with 50% of grants classified under D01D (Mechanical Methods OR Apparatus IN THE Manufacture OF Artificial Filaments, Threads, Fibres, Bristles OR Ribbons). Peak complete grant year is 2021 (3 grants) versus a trough of 1 in 2022. By volume, 4C sits between 3ST Research LLC and 8479950 Canada Inc..

4C's three-year grant acceleration

4C Air, Inc. shows 2 grants in 2022–2024 against only 3 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.

3ST Research

6
3V Sigma S P A

6
3X Engineering

6
4 C's Spray Equip…

6
6degrees

6
7 Hills Pharma

6
777388 Ontario

6
8479950 Canada

6
4C Air ◀

6

What this shows 4C holds 6 patents at rank #38,500, shown against the 8 assignees closest to it in grant volume rather than the industry's largest filers.

Companies ranked near 4C

By rank, the assignees closest to #38,500 in granted patent volume.

Leaders in D01D (Mechanical Methods OR Apparatus IN THE Manufacture OF Art…)

Other assignees with the most granted patents in 4C's primary technology class.

4C's Innovation Score vs. every tracked assignee

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

29 30th percentile higher than 30% 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 · 2021–2025

Grants by year

Teal-shaded recent years (2020–present) versus the 2021–2019 baseline. Full figures in the table below.

View data table

4C Air, Inc. patent grants by year, 2015–2025
Year	Patents Granted	Share of Period
2021	3	50.0%
2022	1	16.7%
2023	1	16.7%
2025partial year	1	16.7%

Which technologies does 4C Air, Inc. patent most?

D01D - Mechanical Methods OR Apparatus IN THE Manufacture OF Artificial Filaments, Threads, Fibres, Bristles OR Ribbons 3

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

B29C - Shaping OR Joining OF PLASTICS; Shaping OF Material IN A Plastic State, NOT Otherwise Provided FOR; After-treatment OF THE Shaped Products, e.g. Repairing 2

B01D - Separation 2

D04H - Making Textile Fabrics, e.g. From Fibres OR Filamentary Material ; Fabrics Made BY Such Processes OR Apparatus, e.g. Felts, Non-woven FABRICS; COTTON-WOOL; Wadding ; ; Non-woven Fabrics From Staple Fibres, Filaments OR Yarns, Bonded With AT Least ONE Web-like Material During Their Consolidation 2

B29L - Indexing Scheme Associated With Subclass B29c, Relating TO Particular Articles 1

C08L - Compositions OF Macromolecular Compounds 1

D06M - Treatment, NOT Provided FOR Elsewhere IN Class D06, OF Fibres, Threads, Yarns, Fabrics, Feathers OR Fibrous Goods Made From Such Materials 1

B82Y - Specific Uses OR Applications OF NANOSTRUCTURES; Measurement OR Analysis OF NANOSTRUCTURES; Manufacture OR Treatment OF Nanostructures 1

Top 9 of 9 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

4C Air, Inc.'s patent record in context - here's where to go next.

4C Air, Inc.'s lead technology class is D01D (Mechanical Methods OR Apparatus IN THE Manufacture OF Artificial Filaments, Threads, Fibres, Bristles OR Ribbons), 50% of its portfolio - see every assignee active in that class. Explore D01D
Ranked #38,499 of 49,997 tracked assignees by patent volume - see the full leaderboard. See the ranking
Compare 4C Air, Inc. against 3ST Research LLC, an assignee filing at a similar volume. Compare portfolios
Innovation Score of 29.2/100 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.