Where does Doyo Engineering Co., Ltd. rank among US patent assignees?

According to USPTO PatentsView (2015–2025 granted utility patents), Doyo Engineering Co., Ltd. ranks #8,012 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 Doyo Engineering Co., Ltd. hold?

Doyo Engineering Co., Ltd. holds 40 US utility patents granted between 2015 and 2024, spanning 2 technology areas.

What is Doyo Engineering Co., Ltd.'s Innovation Score?

Doyo Engineering Co., Ltd. has an Innovation Score of 21.5 out of 100 (9th percentile of the corpus). This composite metric weighs portfolio volume (40%), grant velocity (20%), technology breadth (25%), and claim depth (15%).

Is Doyo Engineering Co., Ltd.'s patent grant rate increasing or decreasing?

Doyo Engineering Co., Ltd.'s recent grant velocity is -40% 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 Doyo Engineering Co., Ltd.'s patents?

Doyo Engineering Co., Ltd.'s patents average 4.0 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 Doyo Engineering 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

Doyo Engineering Co., Ltd.

Q: What technology areas does Doyo Engineering Co., Ltd. focus on?

Doyo Engineering Co., Ltd.'s top technology area is A01K (Animal HUSBANDRY; AVICULTURE; APICULTURE; PISCICULTURE; FISHING; Rearing OR Breeding Animals, NOT Otherwise Provided FOR; NEW Breeds OF Animals) with 38 patents, ranking #15 of 1,035 assignees active in that subclass. Grants appear in 2 CPC subclasses total.

USPTO PatentsView assignee record - 40 granted patents across 2 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: A01K (Animal HUSBANDRY; AVICULTURE; APICULTURE; PISCICULTURE; FISHING; Rearing OR Breeding Animals, NOT Otherwise Provided FOR; NEW Breeds OF Animals).

Compiled by PlainPatent · May 15, 2026

RSS updates for this company

Explore the portfolio See the ranking

The verdict

According to USPTO PatentsView, Doyo ranks #8,012 of 49,997 tracked US assignees by granted-patent volume, with 40 patents across 2 technology areas.

#8,012
of 49,997 US assignees by volume: 9th percentile
by Innovation Score (21.5/100): 4.0
avg claims per patent: -40%
grant velocity, last 5 yrs

USPTO PatentsView assignee plate

Corpus R8012 · Foreign Corporation #8,012 · 40 grants

GRANTS-SMALL · UPPER-Q · PHOTO-FINISH · CPC-NARROW · INNOV-THIN · CLAIMS-SPARSE · TYPE-FRNCORP · VEL-DOWN · BOOK-FULL

GRANTS-SMALL 40 grants
UPPER-Q #8,012/49,997
PHOTO-FINISH Credence MedSystems
CPC-NARROW A01K · 2 areas
INNOV-THIN 21.5/100
CLAIMS-SPARSE 4.0 claims/avg
TYPE-FRNCORP Foreign Corp
VEL-DOWN -40% vel
BOOK-FULL 10/10 fields

Nearest grant-volume peer: Credence MedSystems, 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 Doyo’s 21.5 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 12.8 pts (60%) Velocity 1.3 pts (6%) Breadth 5.0 pts (23%) Claim depth 2.4 pts (11%)

Qualcomm Incorporated · highest

85
Keyway Innovations… · near

22
MiiCs & Partners · near

22
Doyo Engineering · this assignee

22
Shantou Weishengda… · near

22
Lodge Manufacturing · near

22
3D Lighting… · lowest

7

What this shows Doyo's Innovation Score is 21.5/100 (9th 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 Doyo?

Each dot is one of Doyo’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). Doyo’s own 4.0 claims/patent is at or below the 16.9 median for these volume peers. Volume here does not track with deeper claims; several lower-volume peers claim more thoroughly per patent.

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

Where Doyo's grants concentrate

Doyo Engineering Co., Ltd. is a focused PatentsView assignee: 2 CPC subclasses with 95% of grants classified under A01K (Animal HUSBANDRY; AVICULTURE; APICULTURE; PISCICULTURE; FISHING; Rearing OR Breeding Animals, NOT Otherwise Provided FOR; NEW Breeds OF Animals). Peak complete grant year is 2019 (9 grants) versus a trough of 1 in 2023. By volume, Doyo sits between Credence MedSystems, Inc. and Dongguan Shichang Metals Factory Ltd..

Doyo's three-year grant acceleration

From 2019–2021 to 2022–2024, Doyo Engineering Co., Ltd. moved from 20 to 4 grants (0.20x the prior three-year total, a multiple, not a CAGR). See the growth leaderboard.

Credence Medsyste…

40
Danfoss Power Sol…

40
Darfon (Suzhou)

40
De' Longhi Applia…

40
DSG Technology Ho…

40
Defond Electech

40
Dialogic

40
Dongguan Shichang…

40
Doyo Engineering ◀

40

What this shows Doyo holds 40 patents at rank #8,009, shown against the 8 assignees closest to it in grant volume rather than the industry's largest filers.

Companies ranked near Doyo

By rank, the assignees closest to #8,009 in granted patent volume.

Leaders in A01K (Animal Husbandry)

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

Assignees with similar portfolio profiles

Two PlainPatent-derived peer sets for Doyo, neither rank-band nor same-CPC leaders (those blocks stay above). In A01K (Animal Husbandry), Doyo ranks #15 of 1,035 assignees by patent count in that subclass.

Similar innovation score

Nearest assignees by Innovation Score (22 here).

Shantou Weishengda Toys Co., Ltd. 22 Keyway Innovations (Shanghai) Company Limited 22 MiiCs & Partners Inc. 22 Lodge Manufacturing Company 22

Doyo's Innovation Score vs. every tracked assignee

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

22 9th percentile higher than 9% 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

Doyo Engineering Co., Ltd. patent grants by year, 2015–2025
Year	Patents Granted	Share of Period
2015	4	10.0%
2016	4	10.0%
2017	6	15.0%
2018	2	5.0%
2019	9	22.5%
2020	6	15.0%
2021	5	12.5%
2023	1	2.5%
2024	3	7.5%

Which technologies does Doyo Engineering Co., Ltd. patent most?

A01K - Animal HUSBANDRY; AVICULTURE; APICULTURE; PISCICULTURE; FISHING; Rearing OR Breeding Animals, NOT Otherwise Provided FOR; NEW Breeds OF Animals 38

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

Top 2 of 2 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

Doyo Engineering Co., Ltd.'s patent record in context - here's where to go next.

Doyo Engineering Co., Ltd.'s lead technology class is A01K (Animal HUSBANDRY; AVICULTURE; APICULTURE; PISCICULTURE; FISHING; Rearing OR Breeding Animals, NOT Otherwise Provided FOR; NEW Breeds OF Animals), 95% of its portfolio - see every assignee active in that class. Explore A01K
Ranked #8,012 of 49,997 tracked assignees by patent volume - see the full leaderboard. See the ranking
Compare Doyo Engineering Co., Ltd. against Credence MedSystems, Inc., an assignee filing at a similar volume. Compare portfolios
Innovation Score of 21.5/100 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.