Where does Quann Cheng International Co., Ltd. rank among US patent assignees?

According to USPTO PatentsView (2015–2025 granted utility patents), Quann Cheng International Co., Ltd. ranks #42,537 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 Quann Cheng International Co., Ltd. hold?

Quann Cheng International Co., Ltd. holds 6 US utility patents granted between 2023 and 2025, spanning 11 technology areas.

What is Quann Cheng International Co., Ltd.'s Innovation Score?

Quann Cheng International Co., Ltd. has an Innovation Score of 45.5 out of 100 (top 23% of the corpus). This composite metric weighs portfolio volume (40%), grant velocity (20%), technology breadth (25%), and claim depth (15%).

Is Quann Cheng International Co., Ltd.'s patent grant rate increasing or decreasing?

Insufficient historical data is available to calculate a velocity trend for Quann Cheng International Co., Ltd..

What does claim depth mean for Quann Cheng International Co., Ltd.'s patents?

Quann Cheng International Co., Ltd.'s patents average 11.7 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 Quann Cheng International 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

Quann Cheng International Co., Ltd.

Q: What technology areas does Quann Cheng International Co., Ltd. focus on?

Quann Cheng International Co., Ltd.'s top technology area is D01F (Chemical Features IN THE Manufacture OF Artificial Filaments, Threads, Fibres, Bristles OR RIBBONS; Apparatus Specially Adapted FOR THE Manufacture OF Carbon Filaments) with 4 patents. Grants appear in 11 CPC subclasses total.

USPTO PatentsView assignee record - 6 granted patents across 11 technology areas, recorded in grant years 2023–2025. 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: D01F (Chemical Features IN THE Manufacture OF Artificial Filaments, Threads, Fibres, Bristles OR RIBBONS; Apparatus Specially Adapted FOR THE Manufacture OF Carbon Filaments).

Compiled by PlainPatent · May 15, 2026

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Explore the portfolio See the ranking

The verdict

According to USPTO PatentsView, Quann ranks #42,537 of 49,997 tracked US assignees by granted-patent volume, with 6 patents across 11 technology areas.

#42,537
of 49,997 US assignees by volume: Top 23%
by Innovation Score (45.5/100): 11.7
avg claims per patent

USPTO PatentsView assignee plate

Corpus R42537 · Foreign Corporation #42,537 · 6 grants

GRANTS-MICRO · LOWER-Q · PHOTO-FINISH · CPC-FOCUS · INNOV-PAR · CLAIMS-PAR · TYPE-FRNCORP · SPAN-YRS · BOOK-RICH

GRANTS-MICRO 6 grants
LOWER-Q #42,537/49,997
PHOTO-FINISH Qnovia
CPC-FOCUS D01F · 11 areas
INNOV-PAR 45.5/100
CLAIMS-PAR 11.7 claims/avg
TYPE-FRNCORP Foreign Corp
SPAN-YRS 2023–2025 · 3y
BOOK-RICH 9/10 fields

Nearest grant-volume peer: Qnovia, 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.

Qualcomm Incorporated · highest

85
Quann Cheng… · this assignee

45
3D Lighting… · lowest

7

What this shows Quann's Innovation Score is 45.5/100 (top 23% 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.

Where Quann's grants concentrate

Quann Cheng International Co., Ltd. is a focused PatentsView assignee: 11 CPC subclasses with 66.7% of grants classified under D01F (Chemical Features IN THE Manufacture OF Artificial Filaments, Threads, Fibres, Bristles OR RIBBONS; Apparatus Specially Adapted FOR THE Manufacture OF Carbon Filaments). Peak complete grant year is 2024 (3 grants) versus a trough of 1 in 2023. By volume, Quann sits between Qnovia, Inc. and Queclink Wireless Solutions Co., Ltd..

Quann's three-year grant acceleration

Quann Cheng International Co., Ltd. shows 4 grants in 2022–2024 against only 0 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.

Qnovia

6
Qonqave

6
Qspex

6
Quaesta Instrumen…

6
Quanta Cloud Tech…

6
Quanta System S P…

6
Quantum Servo Pum…

6
Queclink Wireless…

6
Quann Cheng Inter… ◀

6

What this shows Quann holds 6 patents at rank #42,501, shown against the 8 assignees closest to it in grant volume rather than the industry's largest filers.

Companies ranked near Quann

By rank, the assignees closest to #42,501 in granted patent volume.

Leaders in D01F (Chemical Features IN THE Manufacture OF Artificial Filaments)

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

Quann's Innovation Score vs. every tracked assignee

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

45 Top 23% higher than 77% 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 · 2023–2025

Grants by year

Teal-shaded recent years (2020–present) versus the 2023–2019 baseline. Full figures in the table below.

View data table

Quann Cheng International Co., Ltd. patent grants by year, 2015–2025
Year	Patents Granted	Share of Period
2023	1	16.7%
2024	3	50.0%
2025partial year	2	33.3%

Which technologies does Quann Cheng International Co., Ltd. patent most?

D01F - Chemical Features IN THE Manufacture OF Artificial Filaments, Threads, Fibres, Bristles OR RIBBONS; Apparatus Specially Adapted FOR THE Manufacture OF Carbon Filaments 4

D10B - Indexing Scheme Associated With Sublasses OF Section D, Relating TO Textiles 3

D02G - Crimping OR Curling Fibres, Filaments, Threads, OR YARNS; Yarns OR Threads 3

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

D02J - Finishing OR Dressing OF Filaments, Yarns, Threads, Cords, Ropes OR THE Like 2

A41D - OUTERWEAR; Protective GARMENTS; Accessories 1

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 1

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

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 1

C08J - WORKING-UP; General Processes OF COMPOUNDING; After-treatment NOT Covered BY Subclasses C08b, C08c, C08f, C08g or C08h 1

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

Top 11 of 11 technology areas

Where it ranks

Overall rank by patents

#42,537

of 49,997 tracked assignees

Innovation Score

45.5 out of 100

View all rankings →

Data Source

USPTO PatentsView, US granted patents 2015–2025

How is Innovation Score calculated?

What to do with this data

Quann Cheng International Co., Ltd.'s patent record in context - here's where to go next.

Quann Cheng International Co., Ltd.'s lead technology class is D01F (Chemical Features IN THE Manufacture OF Artificial Filaments, Threads, Fibres, Bristles OR RIBBONS; Apparatus Specially Adapted FOR THE Manufacture OF Carbon Filaments), 66.7% of its portfolio - see every assignee active in that class. Explore D01F
Ranked #42,537 of 49,997 tracked assignees by patent volume - see the full leaderboard. See the ranking
Compare Quann Cheng International Co., Ltd. against Qnovia, Inc., an assignee filing at a similar volume. Compare portfolios
Innovation Score of 45.5/100 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.