Where does DOW A F-tec Co., Ltd. rank among US patent assignees?

According to USPTO PatentsView (2015–2025 granted utility patents), DOW A F-tec Co., Ltd. ranks #46,275 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 DOW A F-tec Co., Ltd. hold?

DOW A F-tec Co., Ltd. holds 5 US utility patents granted between 2016 and 2020, spanning 6 technology areas.

What is DOW A F-tec Co., Ltd.'s Innovation Score?

DOW A F-tec Co., Ltd. has an Innovation Score of 18.9 out of 100 (5th 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 DOW A F-tec Co., Ltd. focus on?

DOW A F-tec Co., Ltd.'s top technology area is H01F (MAGNETS; INDUCTANCES; TRANSFORMERS; Selection OF Materials FOR Their Magnetic Properties) with 4 patents, ranking #375 of 1,360 assignees active in that subclass. Grants appear in 6 CPC subclasses total.

Is DOW A F-tec Co., Ltd.'s patent grant rate increasing or decreasing?

DOW A F-tec Co., Ltd.'s recent grant velocity is -33% 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 DOW A F-tec Co., Ltd.'s patents?

DOW A F-tec Co., Ltd.'s patents average 6.8 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 DOW A F-tec 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

DOW A F-tec Co., Ltd.

USPTO PatentsView assignee record - 5 granted patents across 6 technology areas, recorded in grant years 2016–2020. 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: H01F (MAGNETS; INDUCTANCES; TRANSFORMERS; Selection OF Materials FOR Their Magnetic Properties).

Compiled by PlainPatent · May 15, 2026

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The verdict

According to USPTO PatentsView, DOW ranks #46,275 of 49,997 tracked US assignees by granted-patent volume, with 5 patents across 6 technology areas.

#46,275
of 49,997 US assignees by volume: 5th percentile
by Innovation Score (18.9/100): 6.8
avg claims per patent: -33%
grant velocity, last 5 yrs

USPTO PatentsView assignee plate

Corpus R46275 · Foreign Corporation #46,275 · 5 grants

GRANTS-MICRO · BOTTOM-DECILE · PHOTO-FINISH · CPC-NARROW · INNOV-LOW · CLAIMS-SPARSE · TYPE-FRNCORP · VEL-DOWN · BOOK-FULL

GRANTS-MICRO 5 grants
BOTTOM-DECILE #46,275/49,997
PHOTO-FINISH Doria International
CPC-NARROW H01F · 6 areas
INNOV-LOW 18.9/100
CLAIMS-SPARSE 6.8 claims/avg
TYPE-FRNCORP Foreign Corp
VEL-DOWN -33% vel
BOOK-FULL 10/10 fields

Nearest grant-volume peer: Doria International 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 DOW’s 18.9 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 (33%) Velocity 0.0 pts (0%) Breadth 8.7 pts (46%) Claim depth 4.1 pts (22%)

Qualcomm Incorporated · highest

85
DOW A F-tec · this assignee

19
3D Lighting… · lowest

7

What this shows DOW's Innovation Score is 18.9/100 (5th 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 DOW?

Each dot is one of DOW’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). DOW’s own 6.8 claims/patent is at or below the 19.0 median for these volume peers. Volume here does not track with deeper claims; several lower-volume peers claim more thoroughly per patent.

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

Where DOW's grants concentrate

DOW A F-tec Co., Ltd. is a focused PatentsView assignee: 6 CPC subclasses with 80% of grants classified under H01F (MAGNETS; INDUCTANCES; TRANSFORMERS; Selection OF Materials FOR Their Magnetic Properties). Peak complete grant year is 2020 (2 grants) versus a trough of 1 in 2016. By volume, DOW sits between Doria International Inc and DR HoldCo 2, Inc..

Doria Internation…

5
DOS Viejos Amigos

5
Doseoptics

5
Double Black Avia…

5
Downunder Geosolu…

5
DPR Construction

5
DQC International

5
DR Holdco 2

5
DOW A F-tec ◀

5

What this shows DOW holds 5 patents at rank #46,153, shown against the 8 assignees closest to it in grant volume rather than the industry's largest filers.

Companies ranked near DOW

By rank, the assignees closest to #46,153 in granted patent volume.

Leaders in H01F (Magnets)

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

DOW's Innovation Score vs. every tracked assignee

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

19 5th percentile higher than 5% 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 · 2016–2020

Grants by year

Teal-shaded recent years (2020–present) versus the 2016–2019 baseline. Full figures in the table below.

View data table

DOW A F-tec Co., Ltd. patent grants by year, 2015–2025
Year	Patents Granted	Share of Period
2016	1	20.0%
2017	1	20.0%
2019	1	20.0%
2020	2	40.0%

Which technologies does DOW A F-tec Co., Ltd. patent most?

H01F - MAGNETS; INDUCTANCES; TRANSFORMERS; Selection OF Materials FOR Their Magnetic Properties 4

C01G - Compounds Containing Metals NOT Covered BY Subclasses C01d OR C01f 4

C01P - Indexing Scheme Relating TO Structural AND Physical Aspects OF Solid Inorganic Compounds 4

C04B - Lime, MAGNESIA; SLAG; CEMENTS; Compositions Thereof, e.g. Mortars, Concrete OR Like Building MATERIALS; Artificial Stone ; Ceramics ; REFRACTORIES; Treatment OF Natural Stone 3

H05K - Printed CIRCUITS; Casings OR Constructional Details OF Electric APPARATUS; Manufacture OF Assemblages OF Electrical Components 1

E04B - General Building CONSTRUCTIONS; Walls, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; Insulation OR Other Protection OF Buildings 1

Top 6 of 6 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

DOW A F-tec Co., Ltd.'s patent record in context - here's where to go next.

DOW A F-tec Co., Ltd.'s lead technology class is H01F (MAGNETS; INDUCTANCES; TRANSFORMERS; Selection OF Materials FOR Their Magnetic Properties), 80% of its portfolio - see every assignee active in that class. Explore H01F
Ranked #46,275 of 49,997 tracked assignees by patent volume - see the full leaderboard. See the ranking
Compare DOW A F-tec Co., Ltd. against Doria International Inc, an assignee filing at a similar volume. Compare portfolios
Innovation Score of 18.9/100 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.